Title :
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
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;
Conference_Titel :
Photovoltaic Specialists Conference (PVSC), 2011 37th IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
978-1-4244-9966-3
DOI :
10.1109/PVSC.2011.6186208
