Tailoring Functional Terminals on Solution-Processable Fullerene Electron Transporting Materials for High Performance Perovskite Solar Cells

被引：4

作者：

Liu, Fu ^{[1
]}

Xing, Zhou ^{[2
]}

Ren, Ya ^{[1
]}

Huang, Rong-Jiao ^{[1
]}

Xu, Piao-Yang ^{[3
]}

Xie, Fang-Fang ^{[3
]}

Li, Shu-Hui ^{[1
]}

Zhong, Xinxian ^{[1
]}

机构：

[1] Guangxi Normal Univ, Sch Chem & Pharmaceut Sci, State Key Lab Chem & Mol Engn Med Resources, Guilin 541004, Peoples R China

[2] Peking Univ, Sch Chem Biol & Biotechnol, Shenzhen Grad Sch, Guangdong Prov Key Lab Nanomicro Mat Res, Shenzhen 518055, Peoples R China

[3] Xiamen Univ, Coll Chem & Chem Engn, iChEM Collaborat Innovat Ctr Chem Energy Mat, Dept Chem,State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

来源：

NANOMATERIALS | 2022年 / 12卷 / 07期

关键词：

fullerene; perovskite solar cell; electron transporting material; stability; ANALYTICAL EXPRESSIONS; EFFICIENT; FULLEROPYRROLIDINE; DERIVATIVES;

D O I：

10.3390/nano12071046

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Widely known as an excellent electron transporting material (ETM), pristine fullerene C-60 plays a critical role in improving the photovoltaic performance of inverted structure perovskite solar cells (PSCs). However, the imperfect perovskite/C-60 interface significantly limits the promotion of device performance and stability due to the weak coordination interactions between bare carbon cages and perovskite. Here, we designed and synthesized three functionalized fulleropyrrolidine ETMs (abbreviated as CEP, CEPE, and CECB), each of which was modified with the same primary terminal (cyanoethyl) and various secondary terminals (phenyl, phenethyl, and chlorobutyl). The resulting CECB-based PSC has a power conversion efficiency (PCE) over 19% and exceptional photo-stability over 1800 h. This work provides significant insight into the targeted terminal design of novel fullerene ETMs for efficient and stable PSCs.

引用

页数：9

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