Spray solution aging dominated optoelectronic, electrochemical and third order NLO properties of CdO:Mo thin films.

Autor: Prabavathi, A., Balu, A. R., Vinitha, G., Delci, Z., Suganya, M., Balamurugan, S., Usharani, K., Anitha, S., Karthika, M.
Zdroj: Indian Journal of Physics; May2023, Vol. 97 Issue 6, p1787-1797, 11p
Abstrakt: In this work, thin films of molybdenum-doped CdO were prepared by spray technique from solutions with varied aging times. The structure of (1 1 1) preferentially grown films is cubic. Variation of crystallite size from 47 to 67 nm takes place with solution aging. Improvement in morphology is observed with aging. Increased transparency and Eg narrowing was realized with aging. The CdO:Mo film from 3-days aged solution exhibits a maximum transparency of 87%. With aging, resistivity decreases and a minimum value of 0.28 × 10–3 Ω-cm was realized with three days aging. Reverse saturable absorption (RSA) effect was realized from the Z-scan studies. Third order NLO susceptibility increases with solution aging. With a negative nonlinear refractive index and a high nonlinear absorption, it was confirmed that the aged films may be used as an optical limiter for laser radiation with self-defocusing. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index