Ecofriendly Hydroxyalkyl Cellulose Additives for Efficient and Stable MAPbI_(3)-Based Inverted Perovskite Solar Cells

作     者：Xuefeng Zhu Rui Lin Hao Gu Huichao Hu Zheng Liu Guichuan Xing Yibing Wu Xinhua Ouyang Xuefeng Zhu;Rui Lin;Hao Gu;Huichao Hu;Zheng Liu;Guichuan Xing;Yibing Wu;Xinhua Ouyang

作者机构：College of Material EngineeringFujian Agriculture and Forestry UniversityFuzhou 350002China Joint Key Laboratory of the Ministry of EducationInstitute of Applied Physics and Materials EngineeringUniversity of MacaoAvenida da UniversidadeTaipaMacao 999078China 

出 版 物：《Energy & Environmental Materials》 (能源与环境材料（英文）)

年 卷 期：2023年第6卷第5期

页      面：251-259页

核心收录：

学科分类：07[理学] 070205[理学-凝聚态物理] 08[工学] 080501[工学-材料物理与化学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 

基　　金：the National Natural Science Foundation of China(61935017,62175268,21674123,31700507) Fujian Natural Science Foundation for Distinguished Young Scholars(2020J06039) Project of“100 People Planning in Fujian Province,”Fujian Provincial Department of Finance for the research of organic photovoltaic solar cell(Kle20001A) the Science and Technology Development Fund,Macao SAR(File no.FDCT-0044/2020/A1,0082/2021/A2) UM's research fund(File no.MYRG2020-00151-IAPME) Natural Science Foundation of Guangdong Province,China(2019A1515012186) Shenzhen-Hong Kong-Macao Science and Technology Innovation Project(Category C)(SGDX2020110309360100) 

主　　题：additives hydroxyalkyl cellulose inverted perovskite solar cells MAPbl_(3) 

摘      要：Perovskite solar cells(PSCs)have been demonstrated to be one of the most promising technologies in the field of renewable ***,the presence of the defects in the perovskite films greatly limits the efficiency and the stability of the *** additive engineering is one of the most effective approaches to overcome this *** of the successful additives are extracted from the petroleum-based materials,while the research on the biomass-based additives is still lagging *** this paper,two ecofriendly hydroxyalkyl cellulose additives,i.e.,hydroxyethyl cellulose(HEC)and hydroxylpropyl cellulose(HPC),are investigated on the performance of the MAPbl_(3)-based inverted *** to the strong interaction between the hydroxyl groups of the cellulose and the divalent cations of the perovskite,these additives enhance the crystal grain orientation and significantly repair the defects of the perovskite *** as the additives,these two cellulose derivatives show a strong passivation ability,which significantly reduces the trap density and improves the optoelectronic feature of the *** with the average power conversion efficiency(PCE)of the control device(19.19%),an enhancement of~10%is achieved after the addition of *** optimized device(PCE=21.25%)with a long-term stability(10:80 h,PCE=20.93%)is achieved by the incorporation of the HEC additives into the precursor *** is the best performance among the PSCs with the cellulose additives up to *** research provides a novel choice to develop a cost-effective and renewable additive for the PSCs with high efficiency and excellent long-term stability.