Synthesis and optoelectrical properties of f-graphene/cadmium selenide hybrid system

Saeed Salem Babkair; Ameer Azam; Kuldeep Singh; Sundeep Kumar Dhawan; Mohd Taukeer Khan

doi:10.1117/1.JNP.9.093048

13 October 2015 Synthesis and optoelectrical properties of f-graphene/cadmium selenide hybrid system

Saeed Salem Babkair, Ameer Azam, Kuldeep Singh, Sundeep Kumar Dhawan, Mohd Taukeer Khan

Author Affiliations +

Journal of Nanophotonics, Vol. 9, Issue 1, 093048 (October 2015). https://doi.org/10.1117/1.JNP.9.093048

Abstract

The present work demonstrates the synthesis of a hybrid accepter material containing amino-functionalized graphene oxide (GO) and an inorganic semiconducting material, cadmium selenide (CdSe). First, amino-functionalized graphene was synthesized and then nanocrystals (NCs) of CdSe were in situ grown in the functionalized-(GO) matrix named f-GCdSe. Structural studies such as x-ray diffraction, and a scanning electron microscopic were employed to investigate the growth of CdSe NCs in the graphene matrix. To understand the charge generation and transfer process at the donor/acceptor interface, the absorption, photoluminescence (PL), and transient absorption spectroscopic (TAS) studies have been carried out in poly(3-hexylthiophene) (P3HT)/f-GCdSe thin films. PL quenching in P3HT/f-GCdSe thin film suggests that charge transfer takes place at the donor/acceptor interface. TAS shows higher optical density and long lived free carriers for P3HT/f-GCdSe thin film. These results suggest that f-GCdSe is an excellent electron–acceptor material for organic photovoltaic devices.

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Saeed Salem Babkair, Ameer Azam, Kuldeep Singh, Sundeep Kumar Dhawan, and Mohd Taukeer Khan "Synthesis and optoelectrical properties of f-graphene/cadmium selenide hybrid system," Journal of Nanophotonics 9(1), 093048 (13 October 2015). https://doi.org/10.1117/1.JNP.9.093048

Published: 13 October 2015

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