Structural and electrical properties of CdS thin films spin coated on glass substrates

TL;DR

This study investigates how annealing temperature affects the structural, electrical, and photovoltaic properties of spin-coated CdS thin films on glass substrates, optimizing their potential for solar cell applications.

Contribution

It provides new insights into the relationship between annealing temperature and the properties of CdS thin films prepared by spin coating.

Findings

Optimal annealing temperature improves film crystallinity.

Photovoltaic output varies with annealing temperature.

FTIR confirms bond formation changes with temperature.

Abstract

CdS samples were synthesized on amorphous glass and conductive glass substrates at room temperature using spin coating technique and subsequently annealed at five different temperatures in air for one hour. The speed and time of spin coating were varied initially to optimize the properties of the samples. FTIR spectroscopy was used in this experiment to analyze CdS bond formation variation with annealing temperature. A liquid junction photocell with KI/I2 electrolyte was prepared to measure the photovoltaic properties. Photovoltage, photocurrent and corresponding output power were measured in order to determine the output power.