Enhancing moisture resistance in p-i-n perovskite solar cells: utilizing fullerene derivatives as advanced electron transport materials

被引：2

作者：

Elnaggar, Mohamed M. ^{[1
,2
,4
]}

Emelianov, Nikita A. ^{[3
]}

机构：

[1] Harbin Inst Technol, Dept Aerosp Engn, 92 West Dazhi St, Harbin, Heilongjiang, Peoples R China

[2] Zhengzhou Res Inst HIT, 26 Longyuan East 7th, Zhengzhou 450000, Henan, Peoples R China

[3] Russian Acad Sci FRC PCP MC RAS, Fed Res Ctr Problems Chem Phys & Med Chem, Semenov Prospect 1, Moscow 141432, Russia

[4] Tanta Univ, Fac Sci, Dept Phys, Tanta 31512, Egypt

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2024年 / 130卷 / 07期

关键词：

Perovskite solar cells; Fullerene derivatives; Electron transport material; Stability; RATIONAL DESIGN; EFFICIENT; STABILITY; POLYMER;

D O I：

10.1007/s00339-024-07609-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Herein, we report on the family of fullerene derivatives F2-F6 as electron transport materials (ETMs) in inverted perovskite solar cells (PSCs). According to the results, F2 and F4 have power conversion efficiencies (PCE) of 17.2% and 16.7%, respectively, which indicates better performance than conventional ETM (PC61BM). Utilizing infrared scattering scanning near-field optical microscopy (IR s-SNOM), we ascertained that F2 and F4 demonstrate exceptional uniformity and are devoid of defects. This characteristic contributes to a reduction in trap density and charge recombination in PSCs, ultimately enhancing device efficiency and mitigating hysteresis. Above all, F2 showed no signs of deterioration when the PSCs were exposed to 45 +/- 5% relative humidity for 1000 h. Our research provides an innovative viewpoint on how to create novel fullerene compounds that enhance efficiency and stability of PSCs.

引用

页数：8

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