Hole-Transporting Materials Based on Twisted Bimesitylenes for Stable Perovskite Solar Cells with High Efficiency

Yan-Duo Lin; Bo-Yu Ke; Kun-Mu Lee; Sheng Hsiung Chang; Kai-Hung Wang; Shih-Han Huang; Chun-Guey Wu; Po-Ting Chou; Samik Jhulki; Jarugu Narasimha Moorthy; Yuan Jay Chang; Kang-Ling Liau; Hsin-Cheng Chung; Ching-Yang Liu; Shih-Sheng Sun; Tahsin J Chow

doi:10.1002/cssc.201501392

Hole-Transporting Materials Based on Twisted Bimesitylenes for Stable Perovskite Solar Cells with High Efficiency

ChemSusChem. 2016 Feb 8;9(3):274-9. doi: 10.1002/cssc.201501392. Epub 2016 Jan 15.

Authors

Yan-Duo Lin¹, Bo-Yu Ke¹, Kun-Mu Lee^{2

3}, Sheng Hsiung Chang², Kai-Hung Wang³, Shih-Han Huang³, Chun-Guey Wu^{2

4}, Po-Ting Chou¹, Samik Jhulki⁵, Jarugu Narasimha Moorthy⁵, Yuan Jay Chang⁶, Kang-Ling Liau⁴, Hsin-Cheng Chung⁷, Ching-Yang Liu⁷, Shih-Sheng Sun¹, Tahsin J Chow⁸

Affiliations

¹ Institute of Chemistry, Academia Sinica, Taipei, 115, Taiwan.
² Research Center for New Generation Photovoltaics, National Central University, Chung-Li, 320, Taiwan.
³ Department of Chemical and Material Engineering, National Central University, Chung-Li, 320, Taiwan.
⁴ Department of Chemistry, National Central University, Chung-Li, 320, Taiwan.
⁵ Department of Chemistry, Indian Institute of Technology, Kanpur, 208 016, India.
⁶ Department of Chemistry, Tung Hai University, Taichung, 407, Taiwan.
⁷ Department of Applied Chemistry, Chinese Culture University, Taipei, 111, Taiwan.
⁸ Institute of Chemistry, Academia Sinica, Taipei, 115, Taiwan. [email protected].

PMID: 26773842
DOI: 10.1002/cssc.201501392

Abstract

A new class of hole-transport materials (HTMs) based on the bimesitylene core designed for mesoporous perovskite solar cells is introduced. Devices fabricated using two of these derivatives yield higher open-circuit voltage values than the commonly used spiro-OMeTAD. Power conversion efficiency (PCE) values of up to 12.11% are obtained in perovskite-based devices using these new HTMs. The stability of the device made using the highest performing HTM (P1) is improved compared with spiro-OMeTAD as evidenced through long-term stability tests over 1000 h.

Keywords: bimesitylenes; hole-transporting materials; perovskite solar cell; stability; twisted structure.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Benzene Derivatives / chemistry*
Calcium Compounds / chemistry*
Electric Power Supplies*
Electrochemistry
Electron Transport
Oxides / chemistry*
Solar Energy*
Titanium / chemistry*

Substances

Benzene Derivatives
Calcium Compounds
Oxides
perovskite
mesitylene
Titanium