Interfacial engineering by p-methylphenylmethylammonium iodide for efficient carbon counter electrode (CE)-based 2D/3D hybrid perovskite solar cells

被引：5

作者：

Cao, Duoling ^{[1
]}

Li, Zuhong ^{[1
]}

Xu, Ya ^{[1
]}

Li, Wenbo ^{[1
]}

Zhong, Hang ^{[1
]}

Huang, Yin ^{[1
]}

Zhang, Xu ^{[1
]}

Wan, Li ^{[1
,3
]}

Zhang, Xiuhua ^{[1
]}

Li, Yuebin ^{[1
]}

Ren, Xiaoming ^{[1
]}

Wang, Xianbao ^{[1
]}

Eder, Dominik ^{[2
]}

Wang, Shimin ^{[1
]}

机构：

[1] Hubei Univ, Fac Mat Sci & Engn, Hubei Collaborat Innovat Ctr Adv Organ Chem Mat, Key Lab Green Preparat & Applicat Funct Mat,Hubei, Wuhan 430062, Peoples R China

[2] Tech Univ Wien, Inst Mat Chem, Getreidemarkt 9-165, A-1060 Vienna, Austria

[3] Hubei Univ, Fac Mat Sci & Engn, Wuhan 430062, Peoples R China

来源：

ORGANIC ELECTRONICS | 2023年 / 113卷

关键词：

perovskite Solar cells; Interfacial engineering; P-methylphenylmethylammonium iodide; 2D layered perovskites; Carbon counter electrode; Stability; HALIDE PEROVSKITES; PASSIVATION; AMMONIUM;

D O I：

10.1016/j.orgel.2022.106699

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Defects at the surface and grain boundaries of three-dimensional (3D) organic-inorganic metal halide perovskite films lead to the non-radiative recombination of charge carriers and accelerate perovskite decomposition. In turn, this deteriorates the power conversion efficiency (PCE) and stability of perovskite solar cells (PSCs). Herein, pmethylphenylmethylammonium iodide (p-MePMAI) was reacted with a 3D perovskite to in-situ form a twodimensional (2D) perovskite upper layer. This upper layer passivated the surface and grain boundary defects of the 3D perovskite film, improving its surface hydrophobicity. As a result, a carbon counter electrode (CE)based 2D/3D PSC achieved a maximum PCE of up to 15.63%, which was much higher than that of an unmodified 3D MAPbI3 PSC (12.16%). Moreover, the unencapsulated 2D/3D device maintained 80% of its initial PCE after exposure to air for 700 h with a relative humidity (RH) of 40 +/- 5%. This research opens a new pathway for the successful construction of stable and efficient 2D/3D PSCs with organic ammonium salts.

引用

页数：8

共 44 条

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