Carbon nanotubes as hole-selective contacts for high-efficiency full-area GaAs hybrid heterojunction solar cells

被引：0

作者：

Mo, Youtian ^{[1
,2
,3
]}

Guo, Chaoying ^{[1
,2
]}

Guo, Jiansen ^{[1
,2
]}

Liu, Peixin ^{[1
,2
]}

Wang, Xuan ^{[1
,2
]}

Cai, Yufan ^{[1
,2
]}

Chen, Jiaying ^{[1
,2
]}

Deng, Xi ^{[1
,2
]}

Wang, Wenliang ^{[1
,2
]}

Li, Guoqiang ^{[1
,2
]}

机构：

[1] South China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510640, Peoples R China

[2] South China Univ Technol, Sch Mat Sci & Engn, Dept Elect Mat, Guangzhou 510640, Peoples R China

[3] Guangdong Univ Educ, Sch Chem & Mat Sci, Guangzhou 510303, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2024年 / 12卷 / 43期

关键词：

PEDOTPSS;

D O I：

10.1039/d4ta05391e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Organic hybrid heterojunction solar cells (HJSCs) based on PEDOT:PSS have attracted significant attention due to their excellent photovoltaic performance. However, the complex carrier transport layer, intricate cell fabrication processes and their high-cost are not proportional to the optimization of cell performance. In this work, we demonstrated a facile annealing process lasting only a few seconds to prepare a high-performance Nafion/PEDOT:PSS (NP) hole transport layer (HTL) and its GaAs hybrid heterojunction. By introducing Nafion, the GaAs/NP HJSC achieves a competitive power conversion efficiency (PCE) of 15.77% thanks to the improved wettability, conductivity and carrier mobility of the HTL. Additionally, a thin and transparent carbon nanotube (CNT) film was introduced as the top electrode for the full-area GaAs/NP hybrid HJSC. The novel design of the NP HTL and full-area light absorption open a new avenue for the widespread application of heterojunction photovoltaic technologies. A schematic of the full-area GaAs/NP hybrid HJSC configuration and the energy band diagram of its heterojunction upon illumination.

引用

页码：29562 / 29570

页数：9