Issue 29, 2015

Visualized acid–base discoloration and optoelectronic investigations of azines and azomethines having double 4-[N,N-di(4-methoxyphenyl)amino]phenyl terminals

Abstract

Two small molecular chromogenic sensors (azine MS-1 and azomethine MS-2) were synthesized for acid–base discoloration and optoelectronic investigations. It was found that the color of both sensors in solution and in the solid state changed obviously from yellow to purple and blue after treatment with acid, which could be easily detected by the naked eye. Furthermore, single-crystal conductance of MS-1 and MS-2 could be significantly enhanced after treatment with HCl gas flow. On the other hand, MS-2 showed relatively good film-forming ability and could be used as a hole transport material (HTM) in perovskite solar cells, exhibiting a power conversion efficiency (PCE) of 6.68%. To the best of our knowledge, this is the first demonstration of perovskite solar cells including a HTM based on a low-cost Schiff-base.

Graphical abstract: Visualized acid–base discoloration and optoelectronic investigations of azines and azomethines having double 4-[N,N-di(4-methoxyphenyl)amino]phenyl terminals

Supplementary files

Article information

Article type
Paper
Submitted
01 Apr 2015
Accepted
22 Jun 2015
First published
22 Jun 2015

J. Mater. Chem. C, 2015,3, 7748-7755

Author version available

Visualized acid–base discoloration and optoelectronic investigations of azines and azomethines having double 4-[N,N-di(4-methoxyphenyl)amino]phenyl terminals

B. Ma, H. Zhang, Y. Wang, Y. Peng, W. Huang, M. Wang and Y. Shen, J. Mater. Chem. C, 2015, 3, 7748 DOI: 10.1039/C5TC00909J

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