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Issue 10, 2016
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Dopant-free 3,3′-bithiophene derivatives as hole transport materials for perovskite solar cells

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Abstract

Three 3,3′-bithiophene derivatives (DHPT-SC, DOPT-SC and DEPT-SC) have been efficiently synthesized by a Stille reaction. X-ray diffraction analysis revealed unique swivel-cruciform configurations and weak intermolecular π–π stacking in these materials. Perovskite solar cells using these pristine hole transport materials without dopants have achieved power conversion efficiencies of 8.35%, 8.69%, and 9.73% with good air stability. This present finding develops dopant-free hole transport materials for perovskite solar cells.

Graphical abstract: Dopant-free 3,3′-bithiophene derivatives as hole transport materials for perovskite solar cells

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Supplementary files

Article information


Submitted
03 Jan 2016
Accepted
08 Feb 2016
First published
10 Feb 2016

J. Mater. Chem. A, 2016,4, 3661-3666
Article type
Communication

Dopant-free 3,3′-bithiophene derivatives as hole transport materials for perovskite solar cells

G. Gong, N. Zhao, D. Ni, J. Chen, Y. Shen, M. Wang and G. Tu, J. Mater. Chem. A, 2016, 4, 3661
DOI: 10.1039/C6TA00032K

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