Arya, Sandeep and Sharma, Asha and Singh, Bikram and Riyas, Mohammad and Bandhoria, Pankaj and Aatif, Mohammad and Gupta, Vinay (2018) Sol-gel synthesis of Cu-doped p-CdS nanoparticles and their analysis as p-CdS/n-ZnO thin film photodiode. Optical Materials, 79. pp. 115-119. ISSN 0925-3467

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Abstract

Copper (Cu) doped p-CdS nanoparticles have been synthesized via sol-gel method. The as-synthesized nano particles were successfully characterized and implemented for fabrication of Glass/ITO/n-ZnO/p-CdS/Al thin film photodiode. The fabricated device is tested for small (-1 V to + 1 V) bias voltage. Results verified that the junction leakage current within the dark is very small. During reverse bias condition, the maximum amount of photocurrent is obtained under illumination of 100 mu W/cm(2). Electrical characterizations confirmed that the external quantum efficiency (EQE), gain and responsivity of n-ZnO/p-CdS photodiode show improved photo response than conventional p-type materials for such a small bias voltage. It is therefore revealed that the Cu doped CdS nanoparticles is an efficient p-type material for fabrication of thin film photo-devices.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Elsevier.
Subjects:	Materials Science Optics
Divisions:	UNSPECIFIED
Depositing User:	Mr. Yogesh Joshi
Date Deposited:	27 Sep 2019 08:12
Last Modified:	27 Sep 2019 08:12
URI:	http://npl.csircentral.net/id/eprint/3948

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