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Issue 4, 2020
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Exploring the semiconductor properties of a charge transfer cocrystal of 1-aminopyrene and TCNQ

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Abstract

A binary (1 : 1) charge transfer cocrystal composed of 1-aminopyrene and 7,7′,8,8′-tetracyanoquinodimethane (TCNQ) is expected to possess potentially intriguing n-type semiconductor properties. The cocrystal was characterized by single crystal analysis, electrical conductivity measurements and spectroscopic methods including EPR, IR and UV-vis in the solid state. The supramolecular features and origin of semiconductor nature of the cocrystal were explored by theoretical studies with a special emphasis given on the effect of amino substitution. The estimated degree of charge transfer (−0.24e) in the cocrystal is predictive of its substantial transport ability for electrons under ambient conditions.

Graphical abstract: Exploring the semiconductor properties of a charge transfer cocrystal of 1-aminopyrene and TCNQ

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Article information


Submitted
24 Sep 2019
Accepted
18 Nov 2019
First published
19 Nov 2019

CrystEngComm, 2020,22, 720-727
Article type
Paper

Exploring the semiconductor properties of a charge transfer cocrystal of 1-aminopyrene and TCNQ

A. Mandal, A. Choudhury, R. Kumar, P. K. Iyer and P. Mal, CrystEngComm, 2020, 22, 720
DOI: 10.1039/C9CE01507H

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