journal article·2022-05-18Open access

Triarylamine-Functionalized Imidazolyl-Capped Bithiophene Hole Transporting Material for Cost-Effective Perovskite Solar Cells

Vellaichamy Joseph, Jianxing Xia, Albertus Adrian Sutanto, Vygintas Jankauskas, Cristina Momblona, Bin Ding, Kasparas Rakstys, Rajendiran Balasaravanan, Chun-Huang Pan, Jen-Shyang Ni, Shueh-Lin Yau, Muhammad Sohail, Ming-Chou Chen, Paul J. Dyson, Mohammad Khaja Nazeeruddin

ACS Applied Materials & Interfaces· Volume 14· Issue 19

Abstract

Triarylamine end-capped-functionalized arylene-imidazole derivatives were synthesized from readily accessible, inexpensive precursors and employed as hole transporting materials (HTMs) in perovskite solar cells (PSCs). All the HTMs displayed high thermal decomposition temperatures (>410 °C), which is beneficial for realizing stable PSC devices. In addition, the new HTMs show appropriate energy level alignment with the perovskite layer, ensuring efficient hole transfer from perovskites to HTMs. Interestingly, PSCs fabricated with the triarylamine-functionalized imidazolyl-capped bithiophene molecule (DImBT-4D) as the HTM exhibited the best power conversion efficiency of 20.11%, comparable to that of the benchmark HTM spiro-OMeTAD, prompting it be a prospective candidate for large-scale PSC applications.
Source: openalex_inverted_index · Quality: baseline

Research context

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

Department of Chemistry and Research Center of New Generation Light-Driven Photovoltaic Module, National Central University, Taoyuan 32001, Taiwan

Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Federale de Lausanne (EPFL), Sion CH-1951, Switzerland

Institute of Chemical Physics, Vilnius University, Sauletekio al. 3, Vilnius 10257, Lithuania

Department of Organic Chemistry, Kaunas University of Technology, Radvilenu pl. 19, Kaunas 50254, Lithuania

Department of Chemical and Materials Engineering, Photo-sensitive Material Advanced Research and Technology Center (Photo-SMART), National Kaohsiung University of Science and Technology, Kaohsiung 80778, Taiwan

Science Department, Texas A&M University at Qatar, Education City, P.O. Box 23874, Doha 4290, Qatar

Funding

Qatar National Research Fund · Ministry of Science and Technology, Taiwan · Covestro Research Center, National Central University

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