Optical and electrical characteristics of ultrasonically sprayed ZnS window layers

Author

Prabhakar, Tejas ; Nagaraju, J.

Author_Institution

Dept. of Instrum. & Appl. Phys., Indian Inst. of Sci., Bangalore, India

fYear

2011

fDate

19-24 June 2011

Abstract

Zinc sulphide thin films which crystallized in sphalerite structure were grown on amorphous glass substrates using a modified ultrasonic spray pyrolysis technique. The effects of substrate temperature and spray duration on the optical and electrical properties of the films were examined. Highly transparent films with a band gap of 3.5 eV were obtained. Resistivity of films varied significantly with substrate temperature as well as with spray duration. The growth parameters were optimized to obtain films with high transmission and low resistivity suitable for solar cell window layer applications.

Keywords

II-VI semiconductors; pyrolysis; semiconductor thin films; solar cells; spraying; ultrasonic applications; wide band gap semiconductors; zinc compounds; ZnS; amorphous glass substrates; band gap; electrical characteristic; electron volt energy 3.5 eV; film resistivity; modified ultrasonic spray pyrolysis technique; optical characteristic; solar cell window layer application; sphalerite structure; spray duration; substrate temperature; transparent films; zinc sulphide thin films; zinc sulphide window layers; Acoustics; Conductivity; Optical films; Substrates; Temperature measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE

Conference_Location

Seattle, WA

ISSN

0160-8371

Print_ISBN

978-1-4244-9966-3

Type

conf

DOI

10.1109/PVSC.2011.6186208

Filename

6186208