A Newly Crosslinked-double Network PEDOT:PSS@PEGDMA toward Highly-Efficient and Stable Tin-Lead Perovskite Solar Cells

被引：14

作者：

Kong, Tengfei ^{[1
]}

Song, Jing ^{[1
]}

Zhang, Yang ^{[1
]}

Lim, Eng Liang ^{[1
]}

Liu, Xufu ^{[1
]}

Tress, Wolfgang ^{[2
]}

Bi, Dongqin ^{[1
]}

机构：

[1] Sun Yat Sen Univ, Sch Mat Sci & Engn, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Low Carbon Chem & Proc Ener, Guangzhou 510275, Peoples R China

[2] ZHAW Sch Engn Forsch Schwerpunkt Organ Elect & Pho, Technikumstr 71, CH-8400 Winterthur, Switzerland

来源：

SMALL | 2023年 / 19卷 / 40期

基金：

中国国家自然科学基金;

关键词：

crosslinked-double networks; polyethylene glycol dimethacrylate; PEDOT; PSS; Sn-Pb perovskite solar cells; PERFORMANCE;

D O I：

10.1002/smll.202303159

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Until now, poly(3,4-ethylenedioxythiophene):poly(styrensulfonate) (PEDOT:PSS) is widely used in Sn-Pb perovskite solar cells (PSCs) due to its many advantages, including high optical transparency, suitable conductivity, superior wettability, and so on. However, the acidic and hydroscopic properties of the PSS component, as well as the incongruous energy level of the hole transport layer (HTL), may lead to unsatisfying interface properties and decreased device performance. Herein, by adding polyethylene glycol dimethacrylate (PEGDMA) into PEDOT:PSS, a newly crosslinked-double-network obtain of PEDOT:PSS@PEGDMA film, which could not only optimize nucleation and crystallinity of Sn-Pb perovskite films, but also suppress defect density and optimize energy level alignment at the HTL/perovskite interface. As a result, the achieves highly efficient and stable mixed Sn-Pb PSCs with an encouraging power conversion efficiency of 20.9%. Additionally, the device can maintain good stability under N-2 atmosphere.

引用

页数：7

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