journal article·2023-11-10

Perovskite Solar Cells and Modules Employing Facile Synthesis and Green-Solvent-Processable Organic Hole Transport Materials

Mengde Zhai, Min Li, Zijian Deng, Ruigang Yao, Linqin Wang, Cheng Chen, Haoxin Wang, Xingdong Ding, Licheng Liu, Xiong Li, Ming Cheng

ACS Energy Letters· Volume 8· Issue 11
Publisher page

Abstract

Developing low-cost and green-solvent-processable organic hole transport materials (HTMs) is essential to accelerate the commercial application of perovskite solar cells (PSCs). Herein, we report two easily synthesized HTMs, D-C6 and D-OC6, based on a double-spiral core unit. Compared to D-C6 with alkyl side chains, the introduction of alkoxy side chains increases the polarity of the terminal molecule D-OC6, making it easier to purify without chromatography and to be processed with the green solvent 2-methoxytoluene (2-MA). More importantly, D-OC6 can chelate with lead and lithium ions, thus inhibiting ion migration and lead leakage. The PSCs containing 2-MA-processed D-OC6 achieve a champion efficiency of up to 24.80%, along with excellent ambient operating stability. Most importantly, we have driven D-OC6 to large-area applications and fabricated perovskite solar modules with an active area of 17.1 cm 2, achieving an efficiency of 21.00%. This study provides a commercially manufacturable HTM option for PSCs.
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Research context

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Light-Emitting Diodes Research

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute for Energy Research, School of Energy and Power Engineering, School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, People’s Republic of China

Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, People’s Republic of China

Institute of Artificial Photosynthesis, State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, People’s Republic of China

Center of Artificial Photosynthesis for Solar Fuels, School of Science, Westlake University, Hangzhou 310024, People’s Republic of China

Funding

Jiangsu Provincial Department of Education · Jiangsu Science and Technology Department · National Natural Science Foundation of China · Natural Science Foundation of Jiangsu Province

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