Heat-up synthesis of Cu2SnS3 quantum dots for near infrared photodetection

Dias, Sandra and Kumawat, Kishan Lal and Biswas, Shinjini and Krupanidhi, S B (2017) Heat-up synthesis of Cu2SnS3 quantum dots for near infrared photodetection. In: RSC ADVANCES, 7 (38). pp. 23301-23308.

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Abstract

Cu2SnS3 quantum dots in the size range of 2.7 nm to 3.6 nm were synthesized using a solution based heat up method. The structural, optical and electrical properties were studied using X-ray diffraction, transmission electron microscopy, UV-Vis spectroscopy, X-ray photoelectron spectroscopy and cyclic voltammetry. In this paper we report, the infrared photo detection of Cu2SnS3 quantum dots. The responsivity, external quantum efficiency and specific detectivity were measured for the infrared lamp under different applied biases and for different illumination intensities of the 1550 nm and 1064 nm lasers. The responsivity, external quantum efficiency and specific detectivity exhibited high values of 1.76 A W-1, 272.53% and 2.79 x 10(11) Jones at -0.5 V applied bias, under infrared lamp illumination intensity of 0.48 W cm(-2).

Item Type:	Journal Article
Publication:	RSC ADVANCES
Additional Information:	Copy right for this article belongs to the ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
Department/Centre:	Division of Chemical Sciences > Materials Research Centre
Date Deposited:	10 Jun 2017 04:41
Last Modified:	10 Jun 2017 04:41
URI:	http://eprints.iisc.ac.in/id/eprint/57195

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