DataVXACS Energy LettersPaper
journal article·2024-09-13

Interface Regulation via an Organometallic Ferrocene-Based Molecule toward Inverted Perovskite Solar Cells

Fei Wang, Taomiao Wang, Chuangye Ge, Yonggui Sun, Xiaokang Sun, Xiao Liang, Dawei Duan, Qiannan Li, Yongjun Li, Fan Zhang, Guo Yang, Xianfang Zhou, Quanyao Zhu, Haoran Lin, Hu Chen, Tom Wu, Hanlin Hu

ACS Energy Letters· Volume 9· Issue 9
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Source abstract

Abstract

There is a significant challenge of charge recombination at the perovskite/electron transport layer (ETL), coupled with the need of optimized interface charge transfer in inverted perovskite solar cells (PSCs). In this work, an organometallic ferrocene-based molecule, ferrocenyl-bis-thieno[3,2- b ]thiophene-2-carboxylate (FcTTPc), with inherent carboxylate and thiophene functionalities surrounding the central ferrocene motif, is meticulously designed and synthesized for the modification of the perovskite/ETL interface. The carboxylate and thiophene groups in the FcTTPc molecule interact strongly with perovskite components, effectively passivating interface defects. Furthermore, the thiophene group of FcTTPc can engage in robust π–π interactions with the ETL, thereby enhancing interface charge transport. Following the interface modification with FcTTPc, an improved alignment of energy levels is achieved, significantly optimizing carrier transport. Due to the interface modification via the FcTTPc molecule, the champion PSC achieves a PCE of 25.39%. The FcTTPc-modified devices maintained over 96% of their initial efficiency under 40% relative humidity conditions for 1500 h.
Source: openalex_inverted_index · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Perovskite Materials and Applications · Conducting polymers and applications · Organic Electronics and Photovoltaics

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

Affiliations

State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, People’s Republic of China

Hoffmann Institute of Advanced Materials, Shenzhen Polytechnic University, 7098 Liuxian Boulevard, Shenzhen 518055, People’s Republic of China

School of Physical Sciences, Great Bay University and Great Bay Institute for Advanced Study, Dongguan 523000, People’s Republic of China

State Key Laboratory of Luminescent Materials and Devices of South China University of Technology (SCUT) Guangzhou 510640, People’s Republic of China

Department of Applied Physics, The Hong Kong Polytechnic University Kowloon, Hong Kong 999077,People’s Republic of China

Funding

Basic and Applied Basic Research Foundation of Guangdong Province · Science, Technology and Innovation Commission of Shenzhen Municipality · Shenzhen Polytechnic · State Key Laboratory of Luminescent Materials and Devices · Dongguan Science and Technology of Social Development Program · Scientific Research Startup Fund for Spray-on Perovskite Photovoltaics R&D Center

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