Mesoscale Ordering 3D Mosaic Self-Assembly of Dopant-Free Hole Transport Material for Perovskite Solar Cells

被引：12

作者：

Liu, Xiaoyuan ^{[1
]}

Wang, Keli ^{[1
]}

Li, Yuheng ^{[2
]}

You, Shuai ^{[2
]}

Liu, Tuo ^{[1
]}

Lv, Yifan ^{[3
,4
]}

Li, Yuan ^{[5
]}

Wang, Yu ^{[1
]}

He, Haoxiang ^{[1
]}

Li, Yinxin ^{[1
]}

Chen, Qian ^{[1
]}

Xie, Pengfei ^{[1
]}

Chen, Yonghua ^{[3
,4
]}

Li, Xiong ^{[2
]}

Xu, Zong-Xiang ^{[1
]}

机构：

[1] Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Guangdong, Peoples R China

[2] Huazhong Univ Sci & Technol, Michael Gra?tzel Ctr Mesoscop Solar Cells, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[3] Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 211816, Peoples R China

[4] Nanjing Tech Univ NanjingTech, Inst Adv Mat IAM, Sch Flexible Elect Future Technol, Nanjing 211816, Jiangsu, Peoples R China

[5] Shandong Univ, Sch Informat Sci & Engn, Qingdao 266237, Peoples R China

来源：

ACS ENERGY LETTERS | 2024年 / 9卷 / 05期

基金：

中国国家自然科学基金;

关键词：

LOW-COST; EFFICIENT;

D O I：

10.1021/acsenergylett.4c00585

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：

To enhance n-i-p perovskite solar cell (PSC) performance, we optimized the hole transport material (HTM) by using a cost-effective N,N '-bicarbazole-based molecule, BCzSPA, with a 3D conjugated extended "L"-type configuration, to fix the molecular packing model and charge hopping channel. By implementing mesoscale molecular tailoring strategies to order the molecular stacking of BCzSPA, we have significantly realized a dense 3D mosaic self-assembly with intermolecular coupling and multichannel charge hopping properties. The proper incorporation of heteroatom-promoted multidirectional molecular interactions and enhanced morphological stability has simultaneously optimized the perovskite/HTM interfacial contact, inhibited defect formation, and further suppressed charge recombination loss. As a result, the resulting PSCs have achieved a promising efficiency of 25.42% (certified PCE, 24.53%) for a small-area (0.1 cm(2)) device as well as 24.01% for a large-area (1 cm(2)) device, while demonstrating remarkable stabilities, with T-80 lifetimes exceeding 2400 h under operation or thermal aging at 85 degrees C.

引用

页码：2446 / 2455

页数：10

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