Synthetic Metals最新文献_第7页

Electrochemically tailored polythiophene–fullerene heterostructures integrated with binary-cation modulated quasi-solid-state ionic gel electrolytes for enhanced interfacial kinetics in dye-sensitized solar cells 电化学定制的多噻吩-富勒烯异质结构与二元阳离子调制准固态离子凝胶电解质集成，用于增强染料敏化太阳能电池的界面动力学

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-05 DOI: 10.1016/j.synthmet.2026.118074

Muhammad Hamza Rasheed , Yasir Qayyum Gill , Muhammad Farooq , Muhammad Younas , Umer Mehmood

Interfacial recombination and limited ionic mobility remain major bottlenecks in advancing dye-sensitized solar cell (DSSC) performance. In this work, we develop a dual-material strategy that simultaneously enhances electronic and ionic transport by integrating a microwave-synthesized polythiophene–fullerene (PTh–C₆₀) nanocomposite counter electrode with a binary-cation ionic liquid polymer gel electrolyte (ILPGE). The optimized PTh–C₆₀ electrode exhibits a markedly improved electrical conductivity of 83.15 S cm⁻¹ , as confirmed by four-point probe analysis, supported by structural and morphological evidence from XRD and SEM. The ILPGE, formulated using LiI and TPAI within a polyacrylonitrile matrix and supplemented with an imidazolium-based ionic liquid, demonstrates a maximum ionic conductivity of 2.02 × 10⁻² mS cm⁻¹ and stable, reversible redox behavior over a wide electrochemical window (–1.5 V to +1.5 V). Molecular dynamics simulations reveal significantly enhanced ion diffusion in the dual-cation gel, while DFT calculations confirm favorable PTh–C₆₀ interaction energies that support efficient electrocatalytic interfaces. When integrated into a quasi-solid-state DSSC, the optimized materials deliver a power conversion efficiency of 7.87 %, surpassing the standard Pt-based device (7.45 %). Notably, the quasi-solid-state cell exhibits excellent long-term durability, retaining its performance beyond 25 days, whereas the standard device undergoes rapid degradation. This combined materials design offers a scalable and stable pathway for improving charge transport, interfacial kinetics, and operational lifetime in next-generation quasi-solid-state DSSCs.

界面复合和有限的离子迁移率仍然是提高染料敏化太阳能电池性能的主要瓶颈。在这项工作中，我们开发了一种双材料策略，通过将微波合成的聚噻吩-富勒烯（PTh-C₆₀）纳米复合对电极与二元阳离子离子液体聚合物凝胶电解质（ILPGE）集成在一起，同时增强了电子和离子传输。优化后的PTh-C₆₀电极的电导率为83.15 S cm（⁻¹ ），四点探针分析证实了这一点，XRD和SEM的结构和形态证据也证实了这一点。ILPGE是用LiI和TPAI在聚丙烯腈基质中配制的，并以咪唑基离子液体为补充物，其最大离子电导率为2.02 × 10⁻²mS cm⁻¹ ，在宽电化学窗口（-1.5 V至+1.5 V）内具有稳定、可逆的氧化还原行为。分子动力学模拟显示双阳离子凝胶中的离子扩散显著增强，而DFT计算证实有利的PTh-C₆₀相互作用能支持有效的电催化界面。当集成到准固态DSSC中时，优化的材料提供7.87 %的功率转换效率，超过了标准的基于pt的器件（7.45 %）。值得注意的是，准固态电池表现出优异的长期耐久性，其性能保持在25天以上，而标准器件则会迅速退化。这种组合材料的设计为改善下一代准固态DSSCs的电荷传输、界面动力学和使用寿命提供了一种可扩展和稳定的途径。

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引用次数: 0

Reliable CNT thermoelectric modules enabled by flexible printed circuit board integration for self-powered IoT sensors 可靠的碳纳米管热电模块，可用于自供电物联网传感器的柔性印刷电路板集成

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-21 DOI: 10.1016/j.synthmet.2026.118086

Shohei Horike , Qingshuo Wei

Carbon nanotube (CNT)-based thermoelectric (TE) materials have emerged as promising candidates for low-grade heat harvesting in self-powered Internet of Things (IoT) devices. However, the practical deployment of CNT-film TE modules has been hindered by two critical fabrication challenges, namely short circuits caused by the CNT whiskers that are generated during film dicing, and structural misalignment arising from manual stacking. In this study, a reliable TE module architecture is presented, which integrates n-type CNT films with a flexible printed circuit board (F-PCB) substrate, the latter of which functions simultaneously as an electrical interconnect and an effective insulating layer. A 50-pair TE module fabricated using this approach exhibited an open-circuit voltage of > 20 mV and a maximum output power of > 20 μW under a temperature difference of ∼50 K. When connected to a commercial direct current (DC)-to-DC converter, the module successfully powered a Bluetooth Low Energy (BLE) temperature sensor, enabling real-time wireless data transmission to a smartphone. These results demonstrate that F-PCB-integrated CNT TE modules offer a high-yield, robust, and practical solution for sustainable self-powered IoT sensing technologies.

基于碳纳米管（CNT）的热电（TE）材料已成为自供电物联网（IoT）设备中低品位热收集的有希望的候选者。然而，碳纳米管薄膜TE模块的实际部署一直受到两个关键制造挑战的阻碍，即在薄膜切割过程中产生的碳纳米管晶须引起的短路，以及手工堆叠引起的结构错位。在这项研究中，提出了一种可靠的TE模块架构，它将n型碳纳米管薄膜与柔性印刷电路板（F-PCB）衬底集成在一起，后者同时作为电气互连和有效的绝缘层。利用该方法制备的50对TE模块在温差为~ 50 K的条件下，开路电压为>； 20 mV，最大输出功率为>； 20 μW。当连接到商用直流（DC -DC）转换器时，该模块成功地为蓝牙低功耗（BLE）温度传感器供电，从而实现实时无线数据传输到智能手机。这些结果表明，f- pcb集成的CNT TE模块为可持续的自供电物联网传感技术提供了高产量、强大且实用的解决方案。

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引用次数: 0

Low-cost pentacyclic acceptors for efficient organic solar cells by heteroatom modifications of side chains and terminals 通过杂原子修饰侧链和末端的高效有机太阳能电池的低成本五环受体

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-29 DOI: 10.1016/j.synthmet.2025.118055

Bigui Zhou , Yijie Nai , Bin Fan , Weikun Chen , Wei Liu , Jun Yuan , Yingping Zou

Developing organic solar cells (OSCs) that combine high power conversion efficiency (PCE) with low-cost materials is essential for their commercialization. Pentacyclic small molecule acceptors (SMAs) are promising candidates, but the effects of side-chain functionalization on their properties are not fully understood. Here, three pentacyclic SMAs (BTA-C3-F, BTA-OC3-F, and BTA-OC3-Cl) were designed to investigate the impact of alkoxy side chains. Compared to hydrocarbon-substituted BTA-C3-F, BTA-OC3-F exhibits increased molecular polarity and a red-shifted absorption spectrum, attributed to stronger intermolecular interactions and denser molecular packing. Terminal chlorination in BTA-OC3-Cl adjusts energy levels, enhances light absorption, and improves charge transport. When blended with the simple-structured polymer donor PTQ10, BTA-OC3-Cl achieves a PCE of 17.49 % and a figure of merit (FOM) of 0.265, among the highest reported for pentacyclic SMA-based OSCs. This study provides a systematic understanding of how side-chain and terminal modifications influence pentacyclic SMA properties, offering guidance for the design of efficient and low-cost OSC materials.

开发结合高功率转换效率（PCE）和低成本材料的有机太阳能电池（OSCs）对于其商业化至关重要。五环小分子受体（SMAs）是一种很有前途的受体，但侧链功能化对其性质的影响尚不完全清楚。本研究设计了三个五环sma （BTA-C3-F， BTA-OC3-F和BTA-OC3-Cl）来研究烷氧侧链的影响。与烃类取代的BTA-C3-F相比，BTA-OC3-F表现出更高的分子极性和红移的吸收光谱，这是由于更强的分子间相互作用和更密集的分子堆积。BTA-OC3-Cl的末端氯化调节能级，增强光吸收，改善电荷输运。当与结构简单的聚合物给体PTQ10共混时，BTA-OC3-Cl的PCE为17.49 %，FOM为0.265，是五环sma基osc中最高的。本研究系统地了解了侧链和末端修饰对五环SMA性能的影响，为高效、低成本OSC材料的设计提供了指导。

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引用次数: 0

Oligoaniline–graphene oxide quantum dot driven polyaniline nano tubes intercalated graphene sheet with improved electrochemical properties 低聚苯胺-氧化石墨烯量子点驱动的聚苯胺纳米管嵌入石墨烯片，具有改善的电化学性能

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-26 DOI: 10.1016/j.synthmet.2025.118046

Arindam Das , Udayan Basak , Indrani Chakraborti , Purnadas Ghosh , Partha Bairi , Biplab Biswas , Dhruba P. Chatterjee , Arun K. Nandi

Three-dimensional highly conductive polyaniline nanotube (PNT)-intercalated pyrolyzed graphene oxide (p-GO) has been developed as highly electrochemically stable electrode material. The growth of the PNTs in between the layers of p–GO sheets have been engineered by the trianiline–graphene oxide quantum dot (GOQD). Chemical oxidative polymerization of aniline has been carried out, wherein the polymerization is initiated ('seeded') by trianiline owing to its significantly lower redox potential compared to aniline, following an autocatalytic mechanism. Consequently, a well-directed growth of polyaniline (PANI) chains exhibiting nanotubular morphology—atypical for aniline polymerization under weakly acidic medium—has been achieved within the interlayers of p-GO sheets. High electronic/ionic mobility by virtue of the conducting graphene sheets as well as 3D porous morphology results remarkably high–rate capability of the composite electrode. The composite has shown a remarkably high specific capacitance of ∼660 F/g (at 1 A/g) and cyclic stability of ∼93.5 % after 10,000 charge/discharge cycles in a symmetrical two electrode set up.

三维高导电性聚苯胺纳米管（PNT）插层热解氧化石墨烯（p-GO）是一种电化学稳定的电极材料。三苯胺-氧化石墨烯量子点（GOQD）可以在p -氧化石墨烯层之间生长pnt。苯胺的化学氧化聚合已经进行，其中聚合是由三苯胺发起的（“种子”），因为它的氧化还原电位比苯胺低得多，遵循自催化机制。因此，聚苯胺（PANI）链的定向生长在p-GO薄片的中间层中，呈现出纳米管状的形态，这是弱酸性介质下苯胺聚合的非典型形态。由于导电石墨烯片的高电子/离子迁移率以及三维多孔形貌，使得复合电极具有显著的高倍率性能。该复合材料在对称双电极设置的10,000次充放电循环后，显示出非常高的比电容为~ 660 F/g（1 a /g）和循环稳定性为~ 93.5 %。

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引用次数: 0

Cryopolymerization in the presence of sucrose as a way to control morphology, conductivity and mechanical properties of polyaniline-poly(vinyl alcohol) cryogels 在蔗糖的存在下进行低温聚合，以控制聚苯胺-聚乙烯醇低温冰箱的形态、电导率和机械性能

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-15 DOI: 10.1016/j.synthmet.2025.118026

Konstantin A. Milakin , Islam M. Minisy , Zuzana Morávková , Miloslav Lhotka , Jiřina Hromádková , Jiří Hodan , Patrycja Bober

Polyaniline-poly(vinyl alcohol) (PANI-PVAl) cryogels/aerogels have been synthesized by one-step oxidative cryopolymerization in the presence of sucrose as a cryoprotecting agent. The incorporation of sucrose into the polymerization medium and its ice recrystallization inhibition activity resulted in the significant decrease of the aerogel pore size (≈0.6–6 μm at 50 wt/vol% of sucrose), compared to pristine PANI-PVAl aerogel (≈3–37 μm). The change of morphology has likely induced the observed increase of the aerogel specific surface area from 13.3 to 28.3 m² g^–1. The increase of the sucrose concentration in the reaction mixture was also found to gradually enhance tensile modulus of the materials with the highest value (47.2 kPa) ≈3 times higher than for the pristine aerogel. The conductivity measurements showed that 10 wt/vol% of sucrose in the polymerization medium was the optimal concentration, leading to the highest conductivity of 5.1 S cm^–1.

以蔗糖为低温保护剂，采用一步氧化低温聚合法制备了聚苯胺-聚乙烯醇（PANI-PVAl）低温/气凝胶。在聚合介质中加入蔗糖及其抑制冰重结晶的活性导致气凝胶的孔径（≈0.6-6 μm）明显减小，当蔗糖含量为50 wt/vol%时，与原始的PANI-PVAl气凝胶（≈3-37 μm）相比，孔径减小（≈0.6-6 μm）。形貌的改变可能导致气凝胶比表面积从13.3增加到28.3 m2 g-1。随着反应混合物中蔗糖浓度的增加，材料的拉伸模量也逐渐提高，其最大值（47.2 kPa）比原始气凝胶高约3倍。电导率测试表明，聚合介质中蔗糖浓度为10 wt/vol%时，其电导率最高，为5.1 S cm-1。

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引用次数: 0

High-performance PEDOT-thermoplastic elastomer films for stretchable electronics applications 用于可拉伸电子应用的高性能pedot热塑性弹性体薄膜

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-26 DOI: 10.1016/j.synthmet.2025.118064

Lucija Fiket , Yuhka Uda , Xin Sun , Bicheng Zhu , Zoran Žujović , Jadranka Travas-Sejdic , Zvonimir Katančić

In the rapidly evolving field of flexible electronics, the development of materials that are simultaneously conductive, stretchable and self-healable is critical for applications such as wearable devices and sensors that operate under dynamic conditions. However, achieving these properties while maintaining reliable electrical performance under mechanical stress remains a significant challenge. This study presents the synthesis and characterization of stretchable and conductive composite films based on a graft copolymer of poly(3,4-ethylenedioxythiophene) (PEDOT) and sulfonated polystyrene-block-poly(ethylene-ran-butylene)-block-polystyrene (S-SEBS). By grafting poly(acrylate-urethane) (PAU) chains onto a PEDOT derivative in the composite with S-SEBS, we achieved a stretchable conducting composite with self-healing capabilities. Mechanical tests and self-healing experiments confirmed the robustness and durability of these composites. The grafted films exhibited a conductivity of 2.88 ± 0.27 S cm⁻¹ , maintaining sufficient electrical performance for practical applications despite the presence of insulating PAU and S-SEBS. The sensing functionality of the fabricated films was demonstrated in recording electromyographic (EMG) signals. Self-healing PEDOT-g-PAU:S-SEBS composites represent a significant advance in stretchable electronics applications as they combine mechanical flexibility and electrical functionality.

在快速发展的柔性电子领域，同时具有导电性，可拉伸性和自愈性的材料的开发对于在动态条件下运行的可穿戴设备和传感器等应用至关重要。然而，在机械应力下实现这些性能的同时保持可靠的电气性能仍然是一个重大挑战。本文研究了基于聚（3,4-乙烯二氧噻吩）（PEDOT）和磺化聚苯乙烯-嵌段聚（乙烯-对丁烯）-嵌段聚苯乙烯（S-SEBS）接枝共聚物的可拉伸导电复合薄膜的合成和表征。通过将聚丙烯酸酯-聚氨酯（PAU）链接枝到S-SEBS复合材料中的PEDOT衍生物上，我们获得了具有自修复能力的可拉伸导电复合材料。力学测试和自修复实验证实了这些复合材料的坚固性和耐久性。接枝膜的电导率为2.88 ± 0.27 S cm⁻¹ ，尽管存在绝缘PAU和S- sebs，但在实际应用中仍能保持足够的电性能。制备的薄膜在记录肌电信号方面具有传感功能。自修复PEDOT-g-PAU:S-SEBS复合材料结合了机械灵活性和电气功能，代表了可拉伸电子应用的重大进步。

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引用次数: 0

Synthesis and characterization of benzo-phenanthridine-based acceptor hosts with enhanced bipolar characteristics for red phosphorescent organic light-emitting diodes 红色磷光有机发光二极管增强双极特性的苯并菲菲啶受体宿主的合成与表征

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-20 DOI: 10.1016/j.synthmet.2026.118082

Ye ji Hyeon , Chul Woong Joo , Baeksang Sung , Hyunji Park , Jonghee Lee , Yun-Hi Kim

Herein, we report the development of highly stable red phosphorescent organic light-emitting diodes (PhOLEDs) that exhibit stable light emission and low efficiency roll-off under high-brightness operation. Typical applications of PhOLEDs include smart phones, TVs, tablets, and automotive displays. Two new acceptor-type host materials, 6-phenyl-3,9-bis(3-(pyridin-3-yl)phenyl)benzo[k]phenanthridine (PBPyP-BPH) and 3-(3,5-di(pyridin-3-yl)phenyl)-6-phenylbenzo[k]phenanthridine (DPyP-BPH) were designed and synthesized based on a highly rigid benzophenanthridine core. Owing to this structural rigidity, the two hosts demonstrated excellent thermal stability with high 5 % weight loss temperatures (T_d,5 %) of 403°C for PBPyP-BPH and 395°C for DPyP-BPH. These high thermal transition temperatures ensure device reliability for automotive applications, even under harsh driving conditions. When utilized in a bipolar mixed-host system with a thermally stable donor, 4,4′,4″-tri(N-carbazolyl)triphenylamine (TCTA), the developed red PhOLEDs (doped with Bis(2-methyldibenzo[f,h]quinoxaline)(acetylacetonate)iridium(III) [Ir(MDQ)₂(acac)], TCTA: PBPyP-BPH and TCTA: DPyP-BPH, achieved high maximum external quantum efficiencies (EQEs) of 17.9 and 17.2 %, respectively with significantly suppressed efficiency roll-offs. These results demonstrate that securing high thermal stability through molecular design, combined with controlling charge balance via device structure optimization, is an effective strategy for realizing high-performance red PhOLEDs.

在此，我们报道了高稳定的红色磷光有机发光二极管（PhOLEDs）的开发，该二极管在高亮度工作下具有稳定的发光和低效率滚降。oled的典型应用包括智能手机、电视、平板电脑和汽车显示器。以高刚性苯并苯胺为核心，设计合成了6-苯基-3,9-双（3-（吡啶-3-基）苯基）苯并[k]菲并啶（pbypp - bph）和3-（3,5-二（吡啶-3-基）苯基）-6-苯基苯并[k]菲并啶（dypp - bph）两种新型受体型主体材料。由于这种结构刚性，两种基质表现出优异的热稳定性，其失重温度高达5 % (Td,5 %)，pbypp - bph为403°C， dypp - bph为395°C。即使在恶劣的驾驶条件下，这些高热转变温度也确保了汽车应用中器件的可靠性。在具有热稳定供体4,4′，4″-三（N-carbazolyl）三苯胺（TCTA）的双极性混合主体体系中，所开发的红色oled(掺杂双（2-甲基二苯并[f，h]喹啉）（乙酰丙酮）铱（III） [Ir（MDQ)2(acac)]， TCTA: pbypp - bph和TCTA: dpypp - bph）分别获得了17.9%和17.2% %的最大外量子效率（EQEs），效率滚降明显受到抑制。这些结果表明，通过分子设计获得高热稳定性，并通过器件结构优化控制电荷平衡，是实现高性能红色发光二极管的有效策略。

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引用次数: 0

High-quality Co-SAM promoted through β-alanine as the molecular patch enabling efficiently inverted perovskite solar cells 高质量的Co-SAM通过β-丙氨酸作为分子贴片促进高效倒置钙钛矿太阳能电池

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-11-26 DOI: 10.1016/j.synthmet.2025.118050

Niqian Du , Shanshan Du , Xueyuan Li , Yaru Du , Chi Feng , Xiaobo Zhang , Kaikai Liu , Zhiyong Liu

In inverted perovskite solar cells (PSCs), the interface between the hole-transport layer (HTL) and the perovskite film is vital for performance and stability. However, traditional self-assembled monolayers (SAMs), like [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz), create a hole-selective contact on nickel oxide (NiOx) but suffer from pinholes and disorder, leading to high interfacial defects and deep-level traps. These issues hinder carrier extraction and increase non-radiative losses. Herein, we establish a co-self-assembled monolayer (Co-SAM) using β-Alanine as a bifunctional “molecular patch”. The carboxylate (-COOH) group of β-Alanine strongly binds to NiOx, filling voids within the Me-4PACz film and creating a dense, uniform HTL. Simultaneously, the amino (-NH₂) group of β-Alanine chelates with uncoordinated Pb²⁺ in the perovskite film, passivating defects and suppressing recombination. This dual-action mechanism boosts hole extraction efficiency, thereby enabling the Co-SAM PSCs to achieve a remarkable power conversion efficiency (PCE) of 25.22 %. Moreover, unencapsulated cells retain 93.4 % of their initial efficiency after 1548 h of continuous aging at 25 °C and 30–40 % relative humidity.

在倒钙钛矿太阳能电池（PSCs）中，空穴传输层（HTL）与钙钛矿薄膜之间的界面对电池性能和稳定性至关重要。然而，传统的自组装单层（sam），如[4-（3,6-二甲基- 9h -咔唑-9-基）丁基]膦酸（Me-4PACz），在氧化镍（NiOx）上产生了孔选择接触，但存在针孔和无序，导致高界面缺陷和深层陷阱。这些问题阻碍了载流子的提取，增加了非辐射损失。本文中，我们利用β-丙氨酸作为双功能“分子贴片”，建立了一种自组装单层（Co-SAM）。β-丙氨酸的羧酸（-COOH）基团与NiOx紧密结合，填充Me-4PACz膜内的空隙，形成致密、均匀的html。同时，β-丙氨酸的氨基（-NH2）与钙钛矿膜中不配位的Pb2+螯合，钝化缺陷并抑制重组。这种双重作用机制提高了井眼萃取效率，从而使Co-SAM psc实现了25.22 %的显著功率转换效率（PCE）。此外，未封装的电池在25°C和30-40 %的相对湿度下持续老化1548 h后，其初始效率仍保持93.4 %。

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引用次数: 0

Improving the efficiency of organic solar cells via infiltrating cathode-modifying molecules into active layer to enhance electron transport and extraction 通过阴极修饰分子渗透到活性层中，增强电子的传递和提取，提高有机太阳能电池的效率

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2026-01-23 DOI: 10.1016/j.synthmet.2026.118095

Mengyu Qiu , Shibo Wang , Yuyan Li , Guilong Cai , Dashan Qin

Organic solar cells have been fabricated with the active layers prefilled with cathode-modifying layer (CML), i.e., covering the surface of conventional active layer with the CML solution so as to infiltrate cathode-modifying molecules into active layer. Compared to the device with conventional active layer, the one with CML-prefilled active layer shows improved electron transport and extraction; it is because the diffused cathode-modifying molecules effectively contact the buried acceptor molecules and simultaneously form some extra efficient conduction paths. Moreover, these cathode-modifying molecules increase the shunt resistance of device and enhance the phase separation of donor and acceptor. The CML-prefilled active layer enables an efficiency of 19.0 %, higher than that (18.2 %) based on the conventional active layer under 1 sun illumination. The current research is helpful to improve the efficiency of conventional and tandem organic solar cells.

制备了用阴极修饰层（CML）预填充活性层的有机太阳能电池，即用CML溶液覆盖常规活性层表面，使阴极修饰分子渗透到活性层中。与常规有源层相比，cml预填充有源层的器件的电子输运和电子萃取性能有所提高；这是因为扩散的阴极修饰分子有效地接触了埋藏的受体分子，同时形成了一些额外有效的传导路径。此外，这些阴极修饰分子增加了器件的分流电阻，增强了供体和受体的相分离。cml预填充有源层在1个太阳照射下的效率为19.0 %，高于常规有源层的18.2 %。本文的研究有助于提高常规和串联有机太阳能电池的效率。

引用次数: 0

Giant variable-range hopping conductance in polar solvent and sulfuric acid-treated poly(3,4-ethylenedioxythiophene):poly(4-styrenesulfonate) (PEDOT:PSS) 极性溶剂和硫酸处理聚（3,4-乙烯二氧噻吩）：聚（4-苯乙烯磺酸盐）（PEDOT:PSS）的大可变范围跳变电导

IF 4.6 3区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Synthetic Metals

Pub Date : 2026-02-01 Epub Date: 2025-12-11 DOI: 10.1016/j.synthmet.2025.118060

Daichi Shimokawa , Yoshinori Nishikitani , Takaya Kubo , Soichi Uchida , Tsuyoshi Asano , Yukio Furukawa

The electrical transport mechanism of sulfuric acid (SA) treated PEDOT:PSS films prepared from a PEDOT:PSS solution with dimethyl sulfoxide (DMSO) or ethylene glycol (EG) as an additive was studied. The SA treatment increased the electrical conductivity; the maximum conductivity at room temperature was 2622 S cm⁻¹. X-ray diffraction (XRD) patterns indicate that all the SA-treated samples consist of crystallites and amorphous regions. Assuming that the electrical conductivity of such a heterogeneous sample can be expressed as the sum of metallic band conduction and Mott variable-range hopping (VRH) conduction, the electrical conductivity of the SA-treated film in the range 21–301 K was decomposed into metallic band conductivity and VRH conductivity. The VRH conductivity is larger than the metallic band conductivity. Hall effect measurements indicate that delocalized band carriers are generated upon SA treatment. Giant VRH conductivities probably originate from hopping between energy bands in the crystallites and localized electronic levels.

研究了以二甲亚砜（DMSO）或乙二醇（EG）为添加剂的PEDOT:PSS溶液经硫酸（SA）处理后的PEDOT:PSS薄膜的电传递机理。SA处理提高了电导率；室温下的最大电导率为2622 S cm−1。x射线衍射（XRD）图谱表明，经sa处理的样品均由晶态和非晶态组成。假设该非均质样品的电导率可表示为金属带电导率和Mott可变范围跳变（VRH）电导率之和，则sa处理膜在21-301 K范围内的电导率可分解为金属带电导率和VRH电导率。VRH电导率大于金属带电导率。霍尔效应测量表明，在SA处理后产生了离域带载波。巨大的VRH电导率可能源于晶体和局部电子能级之间的能带跳跃。

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引用次数: 0