Timur A. Aliev, Alexandra A. Timralieva, Tatiana A. Kurakina, Konstantin E. Katsuba, Yulia A. Egorycheva, Mikhail V. Dubovichenko, Maxim A. Kutyrev, V. Shilovskikh, N. Orekhov, N. Kondratyuk, Sergey N. Semenov, D. Kolpashchikov, E. Skorb
{"title":"Designed assembly and disassembly of DNA in supramolecular structure: From ion regulated nuclear formation and machine learning recognition to running DNA cascade","authors":"Timur A. Aliev, Alexandra A. Timralieva, Tatiana A. Kurakina, Konstantin E. Katsuba, Yulia A. Egorycheva, Mikhail V. Dubovichenko, Maxim A. Kutyrev, V. Shilovskikh, N. Orekhov, N. Kondratyuk, Sergey N. Semenov, D. Kolpashchikov, E. Skorb","doi":"10.1002/nano.202200092","DOIUrl":"https://doi.org/10.1002/nano.202200092","url":null,"abstract":"","PeriodicalId":74238,"journal":{"name":"Nano select : open access","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47180612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Visual hydrogenation of palladium membranes on an elastic substrate and their applications in hydrogen sensing","authors":"Xiaoyi She, Guowei Yang, Yang Shen, C. Jin","doi":"10.1002/nano.202200157","DOIUrl":"https://doi.org/10.1002/nano.202200157","url":null,"abstract":"","PeriodicalId":74238,"journal":{"name":"Nano select : open access","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48269830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ruosong Wang, Philipp Zimmermann, Daniel Schletz, Marisa Hoffmann, Patrick T. Probst, A. Fery, J. Nagel, Christian Rossner
{"title":"Nano meets macro: Furnishing the surface of polymer molds with gold‐nanoparticle arrays","authors":"Ruosong Wang, Philipp Zimmermann, Daniel Schletz, Marisa Hoffmann, Patrick T. Probst, A. Fery, J. Nagel, Christian Rossner","doi":"10.1002/nano.202200110","DOIUrl":"https://doi.org/10.1002/nano.202200110","url":null,"abstract":"","PeriodicalId":74238,"journal":{"name":"Nano select : open access","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46191368","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Zekarias Teklu Gebremichael, Shah Alam, Steffi Stumpf, M. Diegel, U. Schubert, H. Hoppe
Powered by the worldwide efforts of research groups experienced in dye-sensitized, and thin-film solar cells, perovskite solar cells (PSCs) reached a power conversion efficiency of 25.7% within 10 years. However, the presence of defects and trap density within the active layer’s grain boundaries commonly operates as non-radiative recombination centers. Hence, intensive efforts have been reported to passivate the inevitable bulk and interface defects of the active layer using additives or post-treatment processing to enhance the efficiency and stability of PSCs. Herein, a facile post-treatment strategy based on wet processing methylammonium lead triiodide, MAPbI 3 (prepared from lead acetate and methylammonium iodide precursors) films with organic amine salts (FABr and FAI) is demonstrated. As a result, high-quality films of mixed per-ovskites (FA x MA 1-x PbI 3-x Br x and FA x MA 1-x PbI 3 ) were obtained. The surface treatment has efficiently passivate the defects in the host film, suppressing the non-radiative carrier recombination. Compared to the control device, the increased open-circuit voltage (from 0.5 V to 1 V) and fill factor (FF) values of the optimized device based on FA x MA 1-x PbI 3 showed a PCE of 16.13%. And our findings revealed that post-treatment is possible on wet perovskite film aged for a few minutes prior to its post-treatment, which saved the energy used for pre-annealing.
在染料敏化和薄膜太阳能电池的全球研究小组的努力下，钙钛矿太阳能电池(PSCs)在10年内达到了25.7%的功率转换效率。然而，活性层晶界内缺陷和陷阱密度的存在通常作为非辐射复合中心。因此，已有大量研究报道通过添加剂或后处理处理来钝化活性层中不可避免的体积和界面缺陷，以提高psc的效率和稳定性。本文提出了一种基于湿法处理三碘化甲基铅、mapbi3(由醋酸铅和甲基碘化铵前体制备)薄膜和有机胺盐(FABr和FAI)的简单后处理策略。结果得到了高质量的混合双钛矿薄膜(FA × MA 1-x pb3 -x Br x和FA × MA 1-x pb3)。表面处理有效地钝化了主膜中的缺陷，抑制了非辐射载流子的复合。与控制器件相比，基于FA × MA 1 × PbI 3的优化器件的开路电压(从0.5 V增加到1 V)和填充因子(FF)值的PCE为16.13%。我们的研究结果表明，在后处理之前，湿钙钛矿膜可以经过几分钟的时效处理，从而节省了预退火的能量。
{"title":"Single‐step post‐production treatment of lead acetate precursor‐based perovskite using alkylamine salts for reduced grain‐boundary related film defects","authors":"Zekarias Teklu Gebremichael, Shah Alam, Steffi Stumpf, M. Diegel, U. Schubert, H. Hoppe","doi":"10.1002/nano.202200006","DOIUrl":"https://doi.org/10.1002/nano.202200006","url":null,"abstract":"Powered by the worldwide efforts of research groups experienced in dye-sensitized, and thin-film solar cells, perovskite solar cells (PSCs) reached a power conversion efficiency of 25.7% within 10 years. However, the presence of defects and trap density within the active layer’s grain boundaries commonly operates as non-radiative recombination centers. Hence, intensive efforts have been reported to passivate the inevitable bulk and interface defects of the active layer using additives or post-treatment processing to enhance the efficiency and stability of PSCs. Herein, a facile post-treatment strategy based on wet processing methylammonium lead triiodide, MAPbI 3 (prepared from lead acetate and methylammonium iodide precursors) films with organic amine salts (FABr and FAI) is demonstrated. As a result, high-quality films of mixed per-ovskites (FA x MA 1-x PbI 3-x Br x and FA x MA 1-x PbI 3 ) were obtained. The surface treatment has efficiently passivate the defects in the host film, suppressing the non-radiative carrier recombination. Compared to the control device, the increased open-circuit voltage (from 0.5 V to 1 V) and fill factor (FF) values of the optimized device based on FA x MA 1-x PbI 3 showed a PCE of 16.13%. And our findings revealed that post-treatment is possible on wet perovskite film aged for a few minutes prior to its post-treatment, which saved the energy used for pre-annealing.","PeriodicalId":74238,"journal":{"name":"Nano select : open access","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46782883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","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：