A silazane additive for CsPbI_(2)Br perovskite solar cells  

作　　者：Ruiqi Cao Yaochang Yue Hong Zhang Qian Cheng Boxin Wang Shilin Li Yuan Zhang Shuhong Li Huiqiong Zhou 曹瑞琪;乐耀昌;张弘;程倩;王博欣;李世麟;张渊;李书宏;周惠琼(Beijing Technology&Business University,Department of Chemistry,Beijing 100048,China;CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,Nanoscience National Center for Nanoscience and Technology,Beijing 100190,China;HEEGER Beijing Research&Development Center,Beihang University,Beijing 100190,China)

机构地区：[1]Beijing Technology&Business University,Department of Chemistry,Beijing 100048,China [2]CAS Key Laboratory of Nanosystem and Hierarchical Fabrication,Nanoscience National Center for Nanoscience and Technology,Beijing 100190,China [3]HEEGER Beijing Research&Development Center,Beihang University,Beijing 100190,China

出　　处：《Chinese Physics B》2022年第11期54-59,共6页中国物理B（英文版）

基　　金：financially supported by the National Key Research and Development Program of China(Grant No.2017YFA0206600);the National Natural Science Foundation of China(Grant No.21922505);the Strategic Priority Research Program of Chinese Academy of Sciences(Grant No.XDB36000000)。

摘　　要：Adding additives into peroskite precursor solution has been proven as a simple and efficient strategy to improve the quality of peroskite films.In this work,we demonstrate an effective additive strategy to improve the quality of all-inorganic perovskite films by adding a novel silazane additive heptamethyldisilazane(HDMS).The power conversion efficiency(PCE)of the optimized devices is enhanced from 14.55%to 15.31%with an open-circuit voltage over 1.26 V due to the higher quality perovskite films with lower trap density after the incorporation of HDMS.More interestingly,the HDMS devices exhibit superior humidity and thermal stability compared with the control ones.This work provides a simple and efficient strategy to enhance the device performance and stability of all-inorganic perovskite solar cells,which could facilitate its commercialization.

关 键 词：SILAZANE all-inorganic perovskite heptamethyldisilazane(HDMS) ADDITIVE solar cells 

分 类 号：TB34[一般工业技术—材料科学与工程] TM914.4[电气工程—电力电子与电力传动]