Highly transparent conducting CdO thin films by radiofrequency magnetron sputtering for optoelectronic applications

Saheer Cheemadan; Amiruddin Rafiudeen; Maniyeri Chandroth Santhosh Kumar

doi:10.1117/1.JNP.10.033007

22 March 2016 Highly transparent conducting CdO thin films by radiofrequency magnetron sputtering for optoelectronic applications

Saheer Cheemadan, Amiruddin Rafiudeen, Maniyeri Chandroth Santhosh Kumar

Author Affiliations +

Journal of Nanophotonics, Vol. 10, Issue 3, 033007 (March 2016). https://doi.org/10.1117/1.JNP.10.033007

Abstract

Cadmium oxide (CdO) thin films with low electrical resistivity and higher transparency have been deposited by radiofrequency (RF) magnetron sputtering on glass substrates. Sputtering process was carried out at RF power of 40 W and with varying substrate temperatures. The structural, morphological, electrical, and optical properties of the deposited films are investigated. The structural properties reveals that the as-deposited CdO films shows preferential orientation along (111) plane exhibiting face centered cubic structure. The surface morphology shows that all the films possess well defined grain boundaries with high uniformity. CdO samples deposited at substrate temperature of 150°C with RF power of 40 W exhibits above 95% transparency within the visible wavelength with lower electrical resistivity value in the order of 10⁻⁵ Ω·cm. The Raman spectroscopy analysis reveals the possible modes present in CdO films and its dependence on substrate temperature. The comparatively high value of the figure of merit for the optimum sample of CdO deposited at 150°C indicates that these films are suitable for optoelectronic device applications.

Citation Download Citation

Saheer Cheemadan, Amiruddin Rafiudeen, and Maniyeri Chandroth Santhosh Kumar "Highly transparent conducting CdO thin films by radiofrequency magnetron sputtering for optoelectronic applications," Journal of Nanophotonics 10(3), 033007 (22 March 2016). https://doi.org/10.1117/1.JNP.10.033007

Published: 22 March 2016

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available