Short-chain ligands capped CuInSe2 quantum dots as hole transport material for inverted perovskite solar cells

被引：12

作者：

Zhang, Yan ^{[1
]}

Zhang, Zhenlong ^{[1
]}

Liu, Yuefeng ^{[1
]}

Gao, Huiping ^{[1
]}

Mao, Yanli ^{[1
,2
]}

机构：

[1] Henan Univ, Sch Phys & Elect, Kaifeng 475004, Peoples R China

[2] Henan Univ, Inst Micro Nano Photon Mat & Applicat, Kaifeng, Peoples R China

来源：

MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING | 2020年 / 120卷

基金：

中国国家自然科学基金;

关键词：

Perovskte solar cells; Hole transport material; Quantum dots; HIGH-EFFICIENCY; HIGHLY EFFICIENT; PHASE-TRANSFER; TIO2; SURFACE; LAYER; WATER;

D O I：

10.1016/j.mssp.2020.105267

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, oleylamine capped CuInSe2 (OAm-CISe) quantum dots (QDs) were synthesized with a modified hot injection method. The organic long-chain ligands attached on the surface of quantum dots have insulating properties, which affects the charge transport between the quantum dots. Thus the long-chain ligand on OAm-CISe surface was replaced by a short-chain ligand of 3-mercaptopropionic acid (MPA) by phase transfer strategy. The MPA capped CISe (MPA-CISe) was applied as hole transport material to fabricated inverted perovskite solar cells (PSCs). The power conversion efficiency (PCE) of PSCs based on MPA-CISe increased to 8.59% from 7.18% for the PSCs based on OAm-CISe (7.18%). The experimental results indicate that the PCE increase could be due to higher light transmission rate and conductivity of MPA-CISe film than the OAm-CISe film.

引用

页数：6

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