journal article·2018-05-30

Influence of Nonfused Cores on the Photovoltaic Performance of Linear Triphenylamine-Based Hole-Transporting Materials for Perovskite Solar Cells

Yungen Wu, Zhihui Wang, Mao Liang, Hua Cheng, Mengyuan Li, Liyuan Liu, Baiyue Wang, Jinhua Wu, Raju Prasad Ghimire, Xuda Wang, Zhe Sun, Song Xue, Qiquan Qiao

ACS Applied Materials & Interfaces· Volume 10· Issue 21
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Abstract

The core plays a crucial role in achieving high performance of linear hole transport materials (HTMs) toward the perovskite solar cells (PSCs). Most studies focused on the development of fused heterocycles as cores for HTMs. Nevertheless, nonfused heterocycles deserve to be studied since they can be easily synthesized. In this work, we reported a series of low-cost triphenylamine HTMs (M101-M106) with different nonfused cores. Results concluded that the introduced core has a significant influence on conductivity, hole mobility, energy level, and solubility of linear HTMs. M103 and M104 with nonfused oligothiophene cores are superior to other HTMs in terms of conductivity, hole mobility, and surface morphology. PSCs based on M104 exhibited the highest power conversion efficiency of 16.50% under AM 1.5 sun, which is comparable to that of spiro-OMeTAD (16.67%) under the same conditions. Importantly, the employment of M104 is highly economical in terms of the cost of synthesis as compared to that of spiro-OMeTAD. This work demonstrated that nonfused heterocycles, such as oligothiophene, are promising cores for high performance of linear HTMs toward PSCs.
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

Tianjin Key Laboratory of Organic Solar Cells and Photochemical Conversion, Department of Applied Chemistry, Tianjin University of Technology, Tianjin 300384, P. R. China

Jiangsu Provincial Key Laboratory of Palygorskite Science and Applied Technology, College of Chemical Engineering, Huaiyin Institute of Technology, Huaian 223003, Jiangsu, P. R. China

Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), Collaborative Innovation Center of Chemical Science and Engineering, College of Chemistry, Nankai University, Tianjin 300071, P. R. China

Center for Advanced Photovoltaics, Department of Electrical Engineering, South Dakota State University, Brookings, South Dakota 57007, United States

Funding

State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · U.S. Department of State · Natural Science Foundation of Jiangsu Province · Division of Graduate Education · Higher Education Commission, Pakistan · US-Egypt Joint Board on Scientific and Technological Cooperation · National Aeronautics and Space Administration · National Natural Science Foundation of China · Division of Chemical, Bioengineering, Environmental, and Transport Systems · United States Agency for International Development · Training Project of Innovation Team of Colleges and Universities in Tianjin · Ministry of Science and Technology, Pakistan

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