TY - JOUR
T1 - Structural and optical properties of indium oxide thin films synthesized at different deposition parameters by spray pyrolysis
AU - Aparna, C.
AU - Mahesha, M. G.
AU - Kumara Shetty, Pramoda
N1 - Funding Information:
Authors acknowledge the support received from Department of Physics, Manipal Academy of Higher Education (MAHE) for providing the scholarship for research work and instrumentation facilities.
Publisher Copyright:
© 2022 Elsevier Ltd. All rights reserved.
PY - 2022
Y1 - 2022
N2 - Indium oxide polycrystalline films have been synthesized by the spray pyrolysis method. The deposition has been carried out on cleaned glass substrates. The aqueous solution of indium chloride was used as a precursor solution. Thin films were deposited with two different molar concentrations of 0.02 and 0.03, at three different temperatures ranging from 300 to 400 °C with an increment of 50 °C. Structural and optical properties were studied using XRD and UV-Vis spectroscopy. The polycrystallinity of the film can be assured from the XRD data. Absorption and transmission spectra were examined in the 300-1000 nm spectral range. For the investigated films, the transmission coefficient reaches a maximum of 80% for the 0.02 M sample at 400 °C. Indium oxide is a material showing both direct and indirect bandgap. The direct bandgap values range between 3.53 eV and 3.87 eV. Optical parameters like refractive index and extinction coefficient were also calculated for deposited films at various temperatures. The investigation was done to optimize the deposition parameters for gamma sensing applications.
AB - Indium oxide polycrystalline films have been synthesized by the spray pyrolysis method. The deposition has been carried out on cleaned glass substrates. The aqueous solution of indium chloride was used as a precursor solution. Thin films were deposited with two different molar concentrations of 0.02 and 0.03, at three different temperatures ranging from 300 to 400 °C with an increment of 50 °C. Structural and optical properties were studied using XRD and UV-Vis spectroscopy. The polycrystallinity of the film can be assured from the XRD data. Absorption and transmission spectra were examined in the 300-1000 nm spectral range. For the investigated films, the transmission coefficient reaches a maximum of 80% for the 0.02 M sample at 400 °C. Indium oxide is a material showing both direct and indirect bandgap. The direct bandgap values range between 3.53 eV and 3.87 eV. Optical parameters like refractive index and extinction coefficient were also calculated for deposited films at various temperatures. The investigation was done to optimize the deposition parameters for gamma sensing applications.
UR - http://www.scopus.com/inward/record.url?scp=85127964125&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85127964125&partnerID=8YFLogxK
U2 - 10.1016/j.matpr.2022.01.048
DO - 10.1016/j.matpr.2022.01.048
M3 - Conference article
AN - SCOPUS:85127964125
SN - 2214-7853
VL - 55
SP - 141
EP - 147
JO - Materials Today: Proceedings
JF - Materials Today: Proceedings
T2 - 9th National Conference on Condensed Matter Physics and Applications, CMPA 2021
Y2 - 16 September 2021 through 17 September 2021
ER -