An Unprecedented Efficiency with Approaching 21%Enabled by Additive‑Assisted Layer‑by‑Layer Processing in Organic Solar Cells  

作　　者：Shuai Xu Youdi Zhang Yanna Sun Pei Cheng Zhaoyang Yao Ning Li Long Ye Lijian Zuo Ke Gao 

机构地区：[1]Key Laboratory of Advanced Green Functional Materials,College of Chemistry,Changchun Normal University,Changchun 130032,People’s Republic of China [2]Shandong Provincial Key Laboratory for Science of Material Creation and Energy Conversion,School of Chemistry and Chemical Engineering,Shandong University,Qingdao 266237,People’s Republic of China [3]College of Polymer Science and Engineering,Sichuan University,Chengdu 610065,People’s Republic of China [4]State Key Laboratory and Institute of Elemento‑Organic Chemistry,Centre of Nanoscale Science and Technology and Key Laboratory of Functional Polymer Materials,Renewable Energy Conversion and Storage Center(RECAST),College of Chemistry,Nankai University,Tianjin 300071,People’s Republic of China [5]Institute of Polymer Optoelectronic Materials and Devices State Key Laboratory of Luminescent Materials and Devices,South China University of Technology,Guangzhou 510640,People’s Republic of China [6]Tianjin Key Laboratory of Molecular Optoelectronic Sciences,School of Materials Science and Engineering,Tianjin University,Tianjin 300350,People’s Republic of China [7]State Key Laboratory of Silicon Materials,MOE Key Laboratory of Macromolecular Synthesis and Functionalization,Department of Polymer Science and Engineering,Zhejiang University,Hangzhou 310027,People’s Republic of China

出　　处：《Nano-Micro Letters》2025年第2期372-375,共4页纳微快报（英文版）

基　　金：Technology Development Program of Jilin Province(YDZJ202201ZYTS640);the National Key Research and Development Program of China(2022YFB4200400)funded by MOST;the National Natural Science Foundation of China(52172048 and 52103221);Shandong Provincial Natural Science Foundation(ZR2021QB024 and ZR2021ZD06);Guangdong Basic and Applied Basic Research Foundation(2023A1515012323,2023A1515010943,and 2024A1515010023);the Qingdao New Energy Shandong Laboratory open Project(QNESL OP 202309);the Fundamental Research Funds of Shandong University.

摘　　要：Recently published in Joule,Feng Liu and colleagues from Shanghai Jiaotong University reported a record-breaking 20.8%power conversion efficiency in organic solar cells(OSCs)with an interpenetrating fibril network active layer morphology,featuring a bulk p-in structure and proper vertical segregation achieved through additive-assisted layer-by-layer deposition.This optimized hierarchical gradient fibrillar morphology and optical management synergistically facilitates exciton diffusion,reduces recombination losses,and enhances light capture capability.This approach not only offers a solution to achieving high-efficiency devices but also demonstrates the potential for commercial applications of OSCs.

关 键 词：Organic solar cells Additive-assisted layer-by-layer processing Three-dimensional fibril morphology Bulk p-i-n structure Optical management 

分 类 号：TM914.4[电气工程—电力电子与电力传动]