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Eco-friendly synthesis of SnSe nanoparticles: Effect of reducing agents on the reactivity of Se-precursor and phase formation of SnSe NPs

Abstract

Tin monoselenide (SnSe) nanoparticles (NPs) have great potential to replace the conventional absorbers used in the fabrication of thin film solar cells. However, the studies pertain to the synthesis and fabrication of SnSe NPs based solar cells are still lacking. This article presents the eco-friendly synthesis of SnSe NPs by a chemical precipitation method in a short reaction time of 10 min. The effect of different reducing agents (such as NaOH, ethylenediamine, Na2SO3, and NaBH4) on the reactivity of Se-precursor and phase formation of SnSe NPs was investigated in detail. Our study indicated that the reaction between Sn2+ ions complexed by ascorbic acid and Se2- ions provided by the reduction with NaBH4 was resulted into the formation of single phase SnSe NPs. For the first time, SnSe NPs thin film inorganic solar cell with device structure of SLG/Mo/ SnSe NPs/CdS/i-ZnO/Al:ZnO/Ni/Ag was fabricated and tested, which showed an efficiency of 0.43%.

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Publication details

The article was received on 22 Nov 2017, accepted on 06 Feb 2018 and first published on 06 Feb 2018


Article type: Paper
DOI: 10.1039/C7NJ04547F
Citation: New J. Chem., 2018, Accepted Manuscript
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    Eco-friendly synthesis of SnSe nanoparticles: Effect of reducing agents on the reactivity of Se-precursor and phase formation of SnSe NPs

    B. Pejjai, V. R. MINNAM REDDY, K. Seku, M. R. Pallavolu and C. Park, New J. Chem., 2018, Accepted Manuscript , DOI: 10.1039/C7NJ04547F

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