ZnO Surface Passivation with Glucose Enables Simultaneously Improving Efficiency and Stability of Inverted Polymer:Non-fullerene Solar Cells

作     者：Bo-Wen Liu Ze-Rui Li Ling-Peng Yan Jing-Bo Guo Qun Luo Chang-Qi Ma Bo-Wen Liu;Ze-Rui Li;Ling-Peng Yan;Jing-Bo Guo;Qun Luo;Chang-Qi Ma

作者机构：School of Nano-Tech and Nano-BionicsUniversity of Science and Technology of ChinaHefei 230026China i-Lab&Printable Electronics Research CenterSuzhou Institute of Nano-Tech and Nano-BionicsChinese Academy of SciencesSuzhou 215123China 

出 版 物：《Chinese Journal of Polymer Science》 (高分子科学（英文版）)

年 卷 期：2022年第40卷第12期

页      面：1594-1603,I0007页

核心收录：

学科分类：08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 

基　　金：financially supported by the National Natural Science Foundation of China (No.22075315) the Chinese Academy of Science (Nos.YJKYYQ20180029 and GJHZ2092-019) the Youth Innovation Promotion Association,CAS (No.2019317) 

主　　题：Polymer solar cells Glucose Surface passivation Charge injection Stability improvement 

摘      要：The power conversion efficiency(PCE)of polymer solar cells(PSCs)has exceeded 19%due to the rapid progress of photoactive organic materials,including conjugated polymer donors and the matched non-fullerene acceptors(NFAs).Due to the high density of oxygen vacancies and the consequent photocatalytic reactivity of ZnO,structure inverted polymer solar cells with the ZnO electron transport layer(ETL)usually suffer poor device *** this work,the eco-friendly glucose(Glu)is found to simultaneously improve the efficiency and stability of polymer:NFA solar *** the optimal conditions,we achieved improved PCEs from 14.77%to 15.86%for the PM6:Y6 solar *** a PCE improvement was attributed to the improvement in J_(SC) and FF,which is ascribed to the smoother and more hydrophobic surface of the ZnO/Glu surface,thereby enhancing the charge extraction efficiency and inhibiting charge ***,UV-Vis absorption spectra analysis revealed that glucose modification could significantly inhibit the photodegradation of Y6,resulting in a significant improvement in the stability of the device with 92%of its initial PCE after aging for 1250 *** application of natural interface materials in this work brings hope for the commercial application of organic solar cells and provides new ideas for developing new interface materials.