Yunsong Kong, Changmin Qi, Jie Tang, Yunlei Zhang, Xiaoduo Zhao, Bo Yu, Yong-min Liang, Shuanhong Ma, Feng Zhou
Friction control plays a vital role in soft interfacial engineering. However, surface-based regulation strategies are often limited by their modulation depth and range, while bulk regulation is constrained by the efficiency of mass and energy transfer. Achieving extremely large-span friction switching in a soft contact system throughout the entire material remains a formidable challenge. Inspired by Sphagnum moss's through-pore structures, we present a water-triggered, adaptive, and penetrative friction-switching prototype (APFP) that integrates penetrative hydration to simultaneously achieve mechanical switching and interfacial lubrication. APFP features biomimetic surface pores constructed by hydrophilic polymer brushes and lithium-stabilized interconnected channels under phase separation, enabling rapid water penetration and throughout bulk modulus switching (>1000 times), along with a significant reduction in molecular chain damping (∼18 times). Unlike conventional surface regulation strategies, the APFP's penetrative mechanism allows for throughout property modulation, achieving over 100 times the coefficient of friction (CoF) switch (from ∼2.6 to ∼0.02). As proof of concept, APFP can be fabricated into intelligent medical devices with adaptive lubrication and self-supporting mechanics, serving as sutures that reduce tissue-piercing friction, while maintaining wound shape to prevent deformation. This work establishes a paradigm for constructing novel intelligent friction-control systems and soft robotics.
{"title":"Bioinspired Design of a Large-Span Friction-Switching Prototype Driven Synergistically by Adaptive Surface Hydration and Mechanical Strengthening","authors":"Yunsong Kong, Changmin Qi, Jie Tang, Yunlei Zhang, Xiaoduo Zhao, Bo Yu, Yong-min Liang, Shuanhong Ma, Feng Zhou","doi":"10.1002/adfm.202525682","DOIUrl":"https://doi.org/10.1002/adfm.202525682","url":null,"abstract":"Friction control plays a vital role in soft interfacial engineering. However, surface-based regulation strategies are often limited by their modulation depth and range, while bulk regulation is constrained by the efficiency of mass and energy transfer. Achieving extremely large-span friction switching in a soft contact system throughout the entire material remains a formidable challenge. Inspired by Sphagnum moss's through-pore structures, we present a water-triggered, adaptive, and penetrative friction-switching prototype (APFP) that integrates penetrative hydration to simultaneously achieve mechanical switching and interfacial lubrication. APFP features biomimetic surface pores constructed by hydrophilic polymer brushes and lithium-stabilized interconnected channels under phase separation, enabling rapid water penetration and throughout bulk modulus switching (>1000 times), along with a significant reduction in molecular chain damping (∼18 times). Unlike conventional surface regulation strategies, the APFP's penetrative mechanism allows for throughout property modulation, achieving over 100 times the coefficient of friction (CoF) switch (from ∼2.6 to ∼0.02). As proof of concept, APFP can be fabricated into intelligent medical devices with adaptive lubrication and self-supporting mechanics, serving as sutures that reduce tissue-piercing friction, while maintaining wound shape to prevent deformation. This work establishes a paradigm for constructing novel intelligent friction-control systems and soft robotics.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"124 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145968958","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Vertical organic field-effect transistors (VOFETs) have garnered significant attention due to their inherently short-channel design, which facilitates high-frequency operation, low power consumption, and the capability to drive high current densities. However, the incompatibility between traditional source electrodes and solution-processed organic semiconductors severely limits large-scale integration and performance enhancement of VOFETs. In this study, we report a controllable solvent interface self-assembly strategy for fabricating ultra-thin, low-roughness graphene source electrodes. Based on the source electrodes and precise control of the molecular packing of the polymer semiconductor (PffBT4T-2OD), the resulting polymer-based VOFETs demonstrate competitive performance metrics, including a high on/off ratio of 3.4 × 106 and a current density of 63.2 mA cm−2, along with exceptional operational stability. Furthermore, devices with operating voltages as low as −1.5 V and channel lengths down-scaled to 37 nm have been realized. Importantly, large-area VOFET arrays with a device density of 3906 devices per cm2 have been successfully fabricated, laying the groundwork for high-density, low-power organic integrated circuits. This advancement provides a scalable manufacturing solution for flexible electronics and organic electronic system-on-chip applications.
垂直有机场效应晶体管（vofet）由于其固有的短通道设计而获得了极大的关注，这有利于高频工作，低功耗和驱动高电流密度的能力。然而，传统源电极与溶液处理有机半导体之间的不兼容性严重限制了vofet的大规模集成和性能提升。在这项研究中，我们报告了一种可控制的溶剂界面自组装策略，用于制造超薄、低粗糙度的石墨烯源电极。基于源电极和对聚合物半导体（PffBT4T-2OD）分子封装的精确控制，所得到的基于聚合物的vofet表现出具有竞争力的性能指标，包括3.4 × 106的高开/关比和63.2 mA cm−2的电流密度，以及出色的工作稳定性。此外，工作电压低至- 1.5 V，通道长度缩小至37 nm的器件已经实现。重要的是，器件密度为每平方厘米3906个器件的大面积VOFET阵列已经成功制造，为高密度、低功耗有机集成电路奠定了基础。这一进步为柔性电子和有机电子片上系统应用提供了可扩展的制造解决方案。
{"title":"Large-Area Self-Assembled Graphene Source Electrodes for High-Performance Vertical Organic Field-Effect Transistors and their Arrays","authors":"Fangcong Zhang, Shunhong Dong, Suyun Tian, Hangyuan Cui, Lingxiang Zhang, Changjin Wan, Huiting Fu, Qingdong Zheng","doi":"10.1002/adfm.202530029","DOIUrl":"https://doi.org/10.1002/adfm.202530029","url":null,"abstract":"Vertical organic field-effect transistors (VOFETs) have garnered significant attention due to their inherently short-channel design, which facilitates high-frequency operation, low power consumption, and the capability to drive high current densities. However, the incompatibility between traditional source electrodes and solution-processed organic semiconductors severely limits large-scale integration and performance enhancement of VOFETs. In this study, we report a controllable solvent interface self-assembly strategy for fabricating ultra-thin, low-roughness graphene source electrodes. Based on the source electrodes and precise control of the molecular packing of the polymer semiconductor (PffBT4T-2OD), the resulting polymer-based VOFETs demonstrate competitive performance metrics, including a high on/off ratio of 3.4 × 10<sup>6</sup> and a current density of 63.2 mA cm<sup>−2</sup>, along with exceptional operational stability. Furthermore, devices with operating voltages as low as −1.5 V and channel lengths down-scaled to 37 nm have been realized. Importantly, large-area VOFET arrays with a device density of 3906 devices per cm<sup>2</sup> have been successfully fabricated, laying the groundwork for high-density, low-power organic integrated circuits. This advancement provides a scalable manufacturing solution for flexible electronics and organic electronic system-on-chip applications.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"4 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956236","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Claudia Fernández-González, Pamela Morales-Fernández, Luke Alexander Turnbull, Claas Abert, Dieter Suess, Michael Foerster, Miguel Á. Niño, Pawel Nita, Anna Mandziak, Simone Finizio, Nuria Bagués, Eva Pereiro, Amalio Fernández-Pacheco, Lucas Pérez, Sandra Ruiz-Gómez, Claire Donnelly
3D Nsanomagnetism
In their Research Article (10.1002/adfm.202515722), Claudia Fernández-González, Sandra Ruiz-Gómez, Claire Donnelly, and co-workers fabricate complex 3D magnetic nanotubes by 3D-printing conductive scaffolds followed by conformal magnetic coating. X-ray microscopy uncovers how curvature shapes their magnetic behavior, revealing azimuthal magnetization and domain-wall pinning at curved vertices. These architected core–shell nanostructures highlight geometry as a powerful design element for next-generation 3D spintronic devices.
{"title":"Realization of Complex-Shaped Magnetic Nanotubes with 3D Printing and Electrodeposition (Adv. Funct. Mater. 4/2026)","authors":"Claudia Fernández-González, Pamela Morales-Fernández, Luke Alexander Turnbull, Claas Abert, Dieter Suess, Michael Foerster, Miguel Á. Niño, Pawel Nita, Anna Mandziak, Simone Finizio, Nuria Bagués, Eva Pereiro, Amalio Fernández-Pacheco, Lucas Pérez, Sandra Ruiz-Gómez, Claire Donnelly","doi":"10.1002/adfm.73580","DOIUrl":"10.1002/adfm.73580","url":null,"abstract":"<p><b>3D Nsanomagnetism</b></p><p>In their Research Article (10.1002/adfm.202515722), Claudia Fernández-González, Sandra Ruiz-Gómez, Claire Donnelly, and co-workers fabricate complex 3D magnetic nanotubes by 3D-printing conductive scaffolds followed by conformal magnetic coating. X-ray microscopy uncovers how curvature shapes their magnetic behavior, revealing azimuthal magnetization and domain-wall pinning at curved vertices. These architected core–shell nanostructures highlight geometry as a powerful design element for next-generation 3D spintronic devices.\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"36 4","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.73580","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145955791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
This cover illustrates how the square-patterned structure enables rapid absorption of chemicals and oils. In addition, it emphasizes the material's magnetic responsiveness and fluorescence properties, which are expected to engage the interest of materials scientists and engineers. Together, these multifunctional features underscore the potential of this advanced material to inspire the design of next-generation sorbents for effective chemical spill management. More information can be found in the Research Article by Changwoo Nam, Youngmin Choi, and Jinhyeok Kang (10.1002/adfm.202519092).
{"title":"Square-Wettability Patterned, Recyclable Polyolefin Elastomer Sorbents for Efficient Chemical and Oil Spill Collection (Adv. Funct. Mater. 4/2026)","authors":"Youngmin Choi, Jinhyeok Kang, Changwoo Nam","doi":"10.1002/adfm.73579","DOIUrl":"10.1002/adfm.73579","url":null,"abstract":"<p><b>Recyclable Polyolefin Elastomer Sorbents</b></p><p>This cover illustrates how the square-patterned structure enables rapid absorption of chemicals and oils. In addition, it emphasizes the material's magnetic responsiveness and fluorescence properties, which are expected to engage the interest of materials scientists and engineers. Together, these multifunctional features underscore the potential of this advanced material to inspire the design of next-generation sorbents for effective chemical spill management. More information can be found in the Research Article by Changwoo Nam, Youngmin Choi, and Jinhyeok Kang (10.1002/adfm.202519092).\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"36 4","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.73579","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145955793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The reflectance-mode photoplethysmography (PPG) technique provides an encouraging platform for heart rate and respiration rate precise monitoring, due to its advantages of the restriction of placed area. The demand for respiration and heart rate monitoring on the reflectance-mode PPG is lowing baseline drift for accuracy low-frequency PPG signal detecting from the photodetector. In this study, a surface cleaning-passivation strategy (SCPS) is developed to simultaneously remove residual solution and suppress the defect on the surface of MAPbBr3 perovskite single crystals, dramatically reducing trap densities and thus resulting in a high-quality surface. Photodetector based on the SCPS-MAPbBr3 single crystal exhibits a reduced dark current of 2.376 nA at bias of 10 V and a reduced dark current drift from 1.36 × 10−5 to 6.07 × 10−7 nA·mm·V−1·s−1 at 200 V·cm−1. A reflectance-mode PPG monitoring system is built based on the excellent MAPbBr3 perovskite single crystal photodetector, which is capable to lower baseline drift of PPG waveforms, enabling the accurate low-frequency signals extraction. This work offers a versatile approach to greatly enhance the performance of MAPbBr3 single crystal photodetector and highlights the immense potential of the perovskite photodetector for health monitoring technologies by the reflectance-mode PPG detection system.
{"title":"Noninvasive Heart Rate and Respiration Rate Detection Enabled by Perovskite Single Crystal Detector","authors":"Yuangan Chen, Lijuan Huang, Yinghao Cui, Yuyang Ji, Zongming Huang, Tianyu Liu, Jiayang Liu, Xiaolan Ma, Pengju Tan, Yiran Hao, Mulin Sun, Honghe Ding, Yu Li, Junfa Zhu, Zhengguo Xiao, Lixin He, Jing Wang, Yongqiang Yu, Qin Hu","doi":"10.1002/adfm.202516873","DOIUrl":"https://doi.org/10.1002/adfm.202516873","url":null,"abstract":"The reflectance-mode photoplethysmography (PPG) technique provides an encouraging platform for heart rate and respiration rate precise monitoring, due to its advantages of the restriction of placed area. The demand for respiration and heart rate monitoring on the reflectance-mode PPG is lowing baseline drift for accuracy low-frequency PPG signal detecting from the photodetector. In this study, a surface cleaning-passivation strategy (SCPS) is developed to simultaneously remove residual solution and suppress the defect on the surface of MAPbBr<sub>3</sub> perovskite single crystals, dramatically reducing trap densities and thus resulting in a high-quality surface. Photodetector based on the SCPS-MAPbBr<sub>3</sub> single crystal exhibits a reduced dark current of 2.376 nA at bias of 10 V and a reduced dark current drift from 1.36 × 10<sup>−5</sup> to 6.07 × 10<sup>−7</sup> nA·mm·V<sup>−1</sup>·s<sup>−1</sup> at 200 V·cm<sup>−1</sup>. A reflectance-mode PPG monitoring system is built based on the excellent MAPbBr<sub>3</sub> perovskite single crystal photodetector, which is capable to lower baseline drift of PPG waveforms, enabling the accurate low-frequency signals extraction. This work offers a versatile approach to greatly enhance the performance of MAPbBr<sub>3</sub> single crystal photodetector and highlights the immense potential of the perovskite photodetector for health monitoring technologies by the reflectance-mode PPG detection system.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"38 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maintaining a stable temperature difference within ultrathin thermoelectric sensors remains a key challenge for achieving skin-conformal and integrated thermal perception. Here, we present a dual-wedge thermoelectric (DWTE) architecture composed of two complementary wedge-shaped layers with distinct thermal conductivities. This structural configuration suppresses vertical heat diffusion while facilitating lateral heat flow, thereby establishing a stable lateral temperature gradient in thermoelectric films. This dual-wedge design not only enhances thermal response speed and signal stability but also significantly amplifies thermoelectric output under transient stimuli. Based on the thermal-conductivity-dominated thermal diffusion differences and an intelligent classification algorithm, the DWTE device integrated on an artificial hand enables rapid identification and classification of seven materials with an accuracy of 99.7%. Meanwhile, a 32-channel flexible thermoelectric array provides conformal real-time thermal mapping during object grasping. This work provides an effective solution to the long-standing trade-off between device thickness and thermal gradient stability, offering a universal strategy for fast-response thermoelectric sensing in advanced wearable and human-machine interactive systems.
{"title":"Thermal-Conductivity-Driven Dual-Wedge Thermoelectric Architecture for Intelligent Thermal Perception and Material Identification","authors":"Minqi Chen, Zhongqian Song, Shengjie Liu, Yukai Wang, Yu Bao, Yingming Ma, Zhenbang Liu, Li Niu","doi":"10.1002/adfm.202529573","DOIUrl":"https://doi.org/10.1002/adfm.202529573","url":null,"abstract":"Maintaining a stable temperature difference within ultrathin thermoelectric sensors remains a key challenge for achieving skin-conformal and integrated thermal perception. Here, we present a dual-wedge thermoelectric (DWTE) architecture composed of two complementary wedge-shaped layers with distinct thermal conductivities. This structural configuration suppresses vertical heat diffusion while facilitating lateral heat flow, thereby establishing a stable lateral temperature gradient in thermoelectric films. This dual-wedge design not only enhances thermal response speed and signal stability but also significantly amplifies thermoelectric output under transient stimuli. Based on the thermal-conductivity-dominated thermal diffusion differences and an intelligent classification algorithm, the DWTE device integrated on an artificial hand enables rapid identification and classification of seven materials with an accuracy of 99.7%. Meanwhile, a 32-channel flexible thermoelectric array provides conformal real-time thermal mapping during object grasping. This work provides an effective solution to the long-standing trade-off between device thickness and thermal gradient stability, offering a universal strategy for fast-response thermoelectric sensing in advanced wearable and human-machine interactive systems.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"18 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956262","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Deblina Das, Youngsin Park, Sourav Mal, Kwangseuk Kyhm, Robert A. Taylor, Atanu Jana, Sangeun Cho
Circularly Polarized Luminescence
This cover illustrates the creation of robust, full-color perovskite nanocrystal composites stabilized by 2D ZrH2P2O8 nanosheets and embedded in a chiral polymer matrix. The hybrid architecture enhances photoluminescence efficiency and long-term stability while enabling strong dual-phase circularly polarized luminescence for next-generation chiroptoelectronic applications. More information can be found in the Research Article by Atanu Jana, Sangeun Cho, and co-workers (10.1002/adfm.202514790).
{"title":"Ultrastable Perovskite Encased in a Helical Cage for Tunable Full-Color Mirror-Image Circularly Polarized Luminescence (Adv. Funct. Mater. 4/2026)","authors":"Deblina Das, Youngsin Park, Sourav Mal, Kwangseuk Kyhm, Robert A. Taylor, Atanu Jana, Sangeun Cho","doi":"10.1002/adfm.73583","DOIUrl":"10.1002/adfm.73583","url":null,"abstract":"<p><b>Circularly Polarized Luminescence</b></p><p>This cover illustrates the creation of robust, full-color perovskite nanocrystal composites stabilized by 2D ZrH<sub>2</sub>P<sub>2</sub>O<sub>8</sub> nanosheets and embedded in a chiral polymer matrix. The hybrid architecture enhances photoluminescence efficiency and long-term stability while enabling strong dual-phase circularly polarized luminescence for next-generation chiroptoelectronic applications. More information can be found in the Research Article by Atanu Jana, Sangeun Cho, and co-workers (10.1002/adfm.202514790).\u0000\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture><p></p>\u0000 </div>\u0000 </figure></p>","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"36 4","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adfm.73583","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145955757","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tianxiang Yang, Menglong Sun, Qing Pang, Guangping Yang, Haijiang Yang, Rou Feng, Zhiguo Wang, Weidong Tian, Abdullah Nasir, Sining Yun
Facilitating rapid carrier transport through interfacial electron modulation and nanostructure construction is an effective strategy for designing efficient and stable carbon-based electrodes, but it still poses significant challenges. Here, we propose a phase-segregation engineering to prepare two binary metal selenide heterojunctions on 3D N-doped carbon cubes, CoSe2/FeSe2@NDCC (CS/FS@NDCC) and NiSe2/FeSe2@NDCC (NS/FS@NDCC), by utilizing different metal-based Prussian blue analogs as sacrificial templates. Based on the large specific surface area and abundant pores provided by the 3D nanocube structure, as well as the electron-rich field effect generated by the self-driven transfer of electrons at the inhomogeneous interfaces of binary selenides, the transport and extraction of carriers at the composite interface are significantly enhanced. When applied to the electrodes of carbon-based perovskite solar cells (C-PSCs) without a hole transport layer, CS/FS@NDCC and NS/FS@NDCC achieved power conversion efficiencies (PCEs) of 14.11% and 12.82%, respectively. Similarly, in Liquid-junction solar cells, CS/FS@NDCC and NS/FS@NDCC demonstrated PCEs of 8.91% and 8.09%, respectively. This research provides both theoretical and experimental support for the development of highly efficient and stable carbon-based heterojunction electrodes for new energy conversion devices.
{"title":"Phase-Segregation Engineering of Binary Metal Selenide Heterojunctions on 3D N-Doped Carbon Cubes: Boosting Carrier Transport via Electron-Rich Field for High-Performance Photovoltaics","authors":"Tianxiang Yang, Menglong Sun, Qing Pang, Guangping Yang, Haijiang Yang, Rou Feng, Zhiguo Wang, Weidong Tian, Abdullah Nasir, Sining Yun","doi":"10.1002/adfm.202531713","DOIUrl":"https://doi.org/10.1002/adfm.202531713","url":null,"abstract":"Facilitating rapid carrier transport through interfacial electron modulation and nanostructure construction is an effective strategy for designing efficient and stable carbon-based electrodes, but it still poses significant challenges. Here, we propose a phase-segregation engineering to prepare two binary metal selenide heterojunctions on 3D N-doped carbon cubes, CoSe<sub>2</sub>/FeSe<sub>2</sub>@NDCC (CS/FS@NDCC) and NiSe<sub>2</sub>/FeSe<sub>2</sub>@NDCC (NS/FS@NDCC), by utilizing different metal-based Prussian blue analogs as sacrificial templates. Based on the large specific surface area and abundant pores provided by the 3D nanocube structure, as well as the electron-rich field effect generated by the self-driven transfer of electrons at the inhomogeneous interfaces of binary selenides, the transport and extraction of carriers at the composite interface are significantly enhanced. When applied to the electrodes of carbon-based perovskite solar cells (C-PSCs) without a hole transport layer, CS/FS@NDCC and NS/FS@NDCC achieved power conversion efficiencies (PCEs) of 14.11% and 12.82%, respectively. Similarly, in Liquid-junction solar cells, CS/FS@NDCC and NS/FS@NDCC demonstrated PCEs of 8.91% and 8.09%, respectively. This research provides both theoretical and experimental support for the development of highly efficient and stable carbon-based heterojunction electrodes for new energy conversion devices.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"45 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145968959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Electrochemical CO2 reduction (CO2RR) to methanol offers a sustainable route for greenhouse gas mitigation and renewable energy storage, yet suffers from low selectivity due to competing pathways and intermediate instability. Herein, a BiOI/Co9S8 heterojunction electrocatalyst was constructed, leveraging its unique nanotube architecture and the synergistic effect of the heterojunction to achieve highly efficient and selective CO2-to-methanol conversion. In an H-type cell, the catalyst exhibited a Faradaic efficiency of 68.29% for methanol at −0.9 V versus RHE and sustained stable operation for 60 h. In a flow cell, the methanol production rate reached 817.48 µmol h−1 cm−2, with a partial current density of 122.57 mA cm−2. Comparative experiments and calculations confirm that the synergistic interaction and interfacial confinement between BiOI and Co9S8 lowers the energy barrier for the key intermediate HCOOH*, suppresses the formation of key intermediates such as *OCHO and *CO along the CO pathway, and thereby enables methanol production via the HCOOH pathway. This synergistic mechanism offers a novel strategy for the design of high-performance CO2 electroreduction catalysts for methanol synthesis.
电化学CO2还原（CO2RR）制甲醇为温室气体减排和可再生能源储存提供了一条可持续的途径，但由于途径竞争和中间不稳定性，其选择性较低。本文构建了BiOI/Co9S8异质结电催化剂，利用其独特的纳米管结构和异质结的协同效应，实现了高效、选择性的co2 -甲醇转化。在h型电池中，催化剂对甲醇的法拉第效率为68.29%，相对于RHE在−0.9 V下稳定运行60 h。在流动电池中，甲醇的产率达到817.48µmol h−1 cm−2，分电流密度为122.57 mA cm−2。对比实验和计算证实，BiOI和Co9S8之间的协同作用和界面约束降低了关键中间体HCOOH*的能垒，抑制了CO途径上*OCHO和*CO等关键中间体的形成，从而使HCOOH途径生产甲醇成为可能。这种协同机制为设计高性能的甲醇合成CO2电还原催化剂提供了一种新的策略。
{"title":"BiOI/Co9S8 Heterojunction Electrocatalyst for CO2-to-Methanol Conversion via Formate-Mediated Pathway","authors":"Xiangya Zhang, Mai Zhang, Minjiao Xia, Zhen Zhang, Cong Luo, Yifei Yang, Linlin Zhang, Liangliang Wang, Jianjun Liao","doi":"10.1002/adfm.202529725","DOIUrl":"https://doi.org/10.1002/adfm.202529725","url":null,"abstract":"Electrochemical CO<sub>2</sub> reduction (CO<sub>2</sub>RR) to methanol offers a sustainable route for greenhouse gas mitigation and renewable energy storage, yet suffers from low selectivity due to competing pathways and intermediate instability. Herein, a BiOI/Co<sub>9</sub>S<sub>8</sub> heterojunction electrocatalyst was constructed, leveraging its unique nanotube architecture and the synergistic effect of the heterojunction to achieve highly efficient and selective CO<sub>2</sub>-to-methanol conversion. In an H-type cell, the catalyst exhibited a Faradaic efficiency of 68.29% for methanol at −0.9 V versus RHE and sustained stable operation for 60 h. In a flow cell, the methanol production rate reached 817.48 µmol h<sup>−1</sup> cm<sup>−2</sup>, with a partial current density of 122.57 mA cm<sup>−2</sup>. Comparative experiments and calculations confirm that the synergistic interaction and interfacial confinement between BiOI and Co<sub>9</sub>S<sub>8</sub> lowers the energy barrier for the key intermediate HCOOH*, suppresses the formation of key intermediates such as *OCHO and *CO along the CO pathway, and thereby enables methanol production via the HCOOH pathway. This synergistic mechanism offers a novel strategy for the design of high-performance CO<sub>2</sub> electroreduction catalysts for methanol synthesis.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"83 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145972134","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Yuze Zhang, Yuwen Wu, Jie Wang, Mostafa Orban, Chenghong Lu, Can Wang, Chaoxin Li, Chang Liu, Lin Liu, Xinci Gong, Wenjing Wang, Jie Deng, Xiaobiao Shan, Tingrui Pan, Yingxiang Liu, Kai Guo
Biological organisms usually achieve multifunctionality and complex structures through modular combinations. Current pneumatic soft actuator research predominantly isolates linear and bending actuator designs, although there have been lots of pneumatic bending actuators, most of which are based on FEA (fluid elastomer actuation). Fewer studies focus on the PPAMs-based bending configurations, achieving bending actuation through the folding and unfolding of pleats. To address the challenge of achieving multifunctionality without compromising lightweight and flexible attributes, this study introduces two innovative PPAMs-based soft actuators, the honeycomb-inspired linear actuator (HLA) and bending actuator (HBA), drawing structural inspiration from honeycomb geometry. Both of the actuator units can be designed through a similar set of structural parameters. Furthermore, these actuators can be freely combined by modeling for the achievement of versatile structures. HLA demonstrates a deformation rate of 27.67%, while HBA achieves a 37° bending angle under negative pressure. By selecting suitable materials, modular-designed structures composed of several HBA or HLA units show excellent load-bearing performance (29.2 times their own weight) and bionic characteristics (mimicking the gestures of the human arm). Finally, we validate their integration into diverse soft robotic systems, including swimming, grasping, and crawling platforms, highlighting their multi-functionality and potential for advancing soft robotics.
{"title":"Honeycomb-Inspired PPAMs Soft Actuators for the Modular Design of Versatile Robotic Systems","authors":"Yuze Zhang, Yuwen Wu, Jie Wang, Mostafa Orban, Chenghong Lu, Can Wang, Chaoxin Li, Chang Liu, Lin Liu, Xinci Gong, Wenjing Wang, Jie Deng, Xiaobiao Shan, Tingrui Pan, Yingxiang Liu, Kai Guo","doi":"10.1002/adfm.202527277","DOIUrl":"https://doi.org/10.1002/adfm.202527277","url":null,"abstract":"Biological organisms usually achieve multifunctionality and complex structures through modular combinations. Current pneumatic soft actuator research predominantly isolates linear and bending actuator designs, although there have been lots of pneumatic bending actuators, most of which are based on FEA (fluid elastomer actuation). Fewer studies focus on the PPAMs-based bending configurations, achieving bending actuation through the folding and unfolding of pleats. To address the challenge of achieving multifunctionality without compromising lightweight and flexible attributes, this study introduces two innovative PPAMs-based soft actuators, the honeycomb-inspired linear actuator (HLA) and bending actuator (HBA), drawing structural inspiration from honeycomb geometry. Both of the actuator units can be designed through a similar set of structural parameters. Furthermore, these actuators can be freely combined by modeling for the achievement of versatile structures. HLA demonstrates a deformation rate of 27.67%, while HBA achieves a 37° bending angle under negative pressure. By selecting suitable materials, modular-designed structures composed of several HBA or HLA units show excellent load-bearing performance (29.2 times their own weight) and bionic characteristics (mimicking the gestures of the human arm). Finally, we validate their integration into diverse soft robotic systems, including swimming, grasping, and crawling platforms, highlighting their multi-functionality and potential for advancing soft robotics.","PeriodicalId":112,"journal":{"name":"Advanced Functional Materials","volume":"29 1","pages":""},"PeriodicalIF":19.0,"publicationDate":"2026-01-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145956237","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：