High-Performance CuInS2 Quantum Dot Sensitized Solar Cells Through I-/MPA Dual-Ligands Passivation

被引：1

作者：

Peng, Zhuoyin ^{[1
]}

Gu, Yongjie ^{[1
]}

Li, Xing ^{[1
]}

Lu, Beiying ^{[1
]}

Zhang, Xinlong ^{[1
]}

Zhang, Yuanfang ^{[1
]}

Liao, Kai ^{[1
]}

Li, Wei ^{[1
]}

Chen, Keqiang ^{[2
,3
]}

机构：

[1] Changsha Univ Sci & Technol, Hunan Prov Collaborat Innovat Ctr Clean Energy & S, Sch Energy & Power Engn, Key Lab Efficient & Clean Energy Utilizat,Educ Dep, R China, Changsha 410111, Peoples R China

[2] China Univ Geosci, Fac Mat Sci & Chem, Wuhan 430074, Peoples R China

[3] China Univ Geosci, Shenzhen Res Inst, Shenzhen 518052, Peoples R China

来源：

CHEMISTRY-AN ASIAN JOURNAL | 2024年 / 19卷 / 23期

基金：

中国国家自然科学基金;

关键词：

CuInS2 quantum dot sensitized solar cells; I-/MPA dual-ligands; Charge transfer; QDs loading; Photovoltaic performance enhancement; EFFICIENCY;

D O I：

10.1002/asia.202400836

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High-efficiency quantum dot sensitized solar cells (QDSSCs) can be received by increasing quantum dot (QD) loading and mitigating QD surface trap states. Herein, the surface state of CuInS2 QDs is optimized through an I-/MPA dual-ligands passivation strategy. The steric hindrance and electrostatic repulsion between QDs can be effectively reduced, thereby enabling an increased QD loading capacity. Meanwhile, the I-/MPA dual-ligands passivation strategy can further lower the surface trap density, leading to substantially enhanced charge transfer efficiency of the solar cells. Interestingly, various iodized salts, including TBAI, MAI, and KI, are proved to possess comparable property, underscoring the versatility and broad applicability of this I-/MPA dual-ligands passivation strategy. Eventually, CuInS2 QDSSCs based on the NH4I/MPA dual-ligands exhibit a noteworthy enhancement in photovoltaic conversion efficiency, surpassing the benchmark of 5.71 % to reach 7.03 %.

引用

页数：9

共 37 条

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