Simple one step spray process for CuInS2 / In2S3 heterojunctions on flexible substrates for photovoltaic applications

Titu Thomas; K. Rajeev Kumar; C. Sudha Kartha; K. P. Vijayakumar

doi:10.1117/12.2187065

5 September 2015 Simple one step spray process for CuInS₂ / In₂S₃ heterojunctions on flexible substrates for photovoltaic applications

Titu Thomas, K. Rajeev Kumar, C. Sudha Kartha, K. P. Vijayakumar

Author Affiliations +

Proceedings Volume 9561, Thin Films for Solar and Energy Technology VII; 95610J (2015) https://doi.org/10.1117/12.2187065
Event: SPIE Optics + Photonics for Sustainable Energy, 2015, San Diego, California, United States

Abstract

Flexible semiconducting devices such as solar cells and displays have been a recent attraction. Unlike heavy, brittle glass substrates, plastics and metallic foils have advantage of flexibility. They also have added advantages like good thermal stability and high melting point. In this paper we present a very simple method for the growth of Copper Indium Sulphide (CIS) films by depositing merely Indium Sulphide (InS) directly over the Cu foil using simple and economical chemical spray pyrolysis technique. The effects of volume of precursor solution on structural and morphological properties of the films were studied. Finally trials on heterojunctions with a structure of Cu foil/CIS/InS/Ag were also employed. Further improvement on heterojunction is expected by optimizing the morphological and structural properties of the film.

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Titu Thomas, K. Rajeev Kumar, C. Sudha Kartha, and K. P. Vijayakumar "Simple one step spray process for CuInS₂ / In₂S₃ heterojunctions on flexible substrates for photovoltaic applications", Proc. SPIE 9561, Thin Films for Solar and Energy Technology VII, 95610J (5 September 2015); https://doi.org/10.1117/12.2187065

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