Issue 13, 2014

Preparation of nano/microstructures of CuOEP–TCNQ cocrystals with controlled stacking and their photoresponse properties

Abstract

Nano/microstructures of copper octaethylporphyrin (CuOEP, donor)–tetracyanoquinodimethane (TCNQ, acceptor) cocrystals with controlled stacking were prepared by a facile solution method and fully characterized. The as-prepared CuOEP–TCNQ cocrystals were either nanoribbons of TCNQ·2CuOEP or microrods of TCNQ·CuOEP, which had DDA(DDA)nDDA and DA(DA)nDA stacking, respectively. For the first time, a phase transformation was found to occur from nanoribbons of TCNQ·2CuOEP to microrods of TCNQ·CuOEP, which was mainly controlled by the concentration of TCNQ. Moreover, prototype devices were fabricated to investigate their photoresponse properties. The results demonstrated that the DDA(DDA)nDDA stacking had much better photoresponse than the DA(DA)nDA stacking.

Graphical abstract: Preparation of nano/microstructures of CuOEP–TCNQ cocrystals with controlled stacking and their photoresponse properties

Supplementary files

Article information

Article type
Paper
Submitted
01 Nov 2013
Accepted
10 Jan 2014
First published
13 Jan 2014

J. Mater. Chem. C, 2014,2, 2328-2332

Preparation of nano/microstructures of CuOEP–TCNQ cocrystals with controlled stacking and their photoresponse properties

H. Wu, F. Wang, Y. Xiao and G. Pan, J. Mater. Chem. C, 2014, 2, 2328 DOI: 10.1039/C3TC32159B

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