Ahmad, Razi and Srivastava, Ritu and Bhardwaj, Hema and Yadav, Sushma and Singh, Vidya Nand and Chand, Suresh and Singh, Nidhi and Sapra, Sameer (2018) Size-Tunable Synthesis of Colloidal Silver Sulfide Nanocrystals for Solution-Processed Photovoltaic Applications. ChemistrySelect, 3 (20). pp. 5620-5629. ISSN 2365-6549

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Abstract

Silver sulfide (Ag2S) quantum dots (QDs) exhibit promising candidature for low-cost solution-processed photovoltaic devices due to its narrow band gap, high optical absorption coefficient, and being composed of environment friendly materials. In this work, we have synthesized a series of different sized and nearly monodispersed Ag2S quantum dots by using thioacetamide as sulfur source at relatively low temperature (< 100 degrees C). Transmission electron microscopy and X-ray diffraction studies suggests that the as-synthesized QD(S) are nearly monodisperse and highly crystalline. The optical band gap and energy levels of valence and conduction bands were determined by absorption and ultraviolet photoemission spectroscopy, respectively. A hybrid solar cell based on blends of poly (3-hexylthiophene) and Ag2S QDs were fabricated and tested for photovoltaic application. The results indicate that Ag2S QDs are promising material for the fabrication of low cost and environment friendly polymer-QDs hybrid optoelectronics devices.

Item Type:	Article
Additional Information:	Copyright for this article belongs to M/s Wiley.
Subjects:	Chemistry
Divisions:	UNSPECIFIED
Depositing User:	Users 27 not found.
Date Deposited:	20 Dec 2019 07:35
Last Modified:	20 Dec 2019 07:35
URI:	http://npl.csircentral.net/id/eprint/3746

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