Abstract
AbstractThis article aims to study the modification in the structural, optical and electrical properties of indium oxide thin film after gamma irradiation and estimation of sensitivity for gamma sensing applications. The thin film of indium oxide was deposited on a 450 °C preheated glass substrate using the spray pyrolysis technique. The deposited thin film of molar concentration 0.15 M and thickness of around 600 nm was irradiated with different gamma doses (100 Gy, 200 Gy, 300 Gy and 400 Gy). The optical properties of the irradiated film are studied using UV–Visible spectroscopy. Transmittance increased after irradiation up to 200 Gy and beyond that, it decreased. Indium oxide is an n-type semiconductor which exhibits both direct and indirect transitions. Both direct and indirect bandgap energy are calculated using Tauc’s plot. Extinction coefficient and refractive index variation with irradiation were also estimated. Photoluminescence study confirmed the gamma-induced defect formation and annihilation for an irradiation dose of 400 Gy and 200 Gy, respectively. Resistivity also decreased up to 200 Gy and beyond that, it increased. The sensitivity of the deposited film was estimated from the electrical measurements, and it lies between 10.7 and 53.4 mA/cm2/Gy.
Graphical abstract
Funder
Manipal Academy of Higher Education, Manipal
Publisher
Springer Science and Business Media LLC
Subject
Mechanical Engineering,Mechanics of Materials,General Materials Science
Reference48 articles.
1. Baydogan N, Ozdemir O, Cimenoglu H (2013) The improvement in the electrical properties of nanospherical ZnO:Al thin film exposed to irradiation using a Co-60 radioisotope. Radiat Phys Chem 89:20–27
2. Sudha A, Sharma SL, Gupta AN (2019) Achieving sensitive and stable indium oxide thin films for gamma radiation monitoring. Sens Actuators A Phys 285:378–385
3. Yahia A, Attaf A, Saidi H, Dahnoun M, Khelifi C, Bouhdjer A, Saadi A, Ezzaouia H (2019) Structural, optical, morphological and electrical properties of indium oxide thin films prepared by sol gel spin coating process. Surf Interfaces 14:158–165
4. Nefzi C, Souli M, Beji N, Mejri A, Kamoun-Turki N (2017) Enhancement by high gamma radiations of optical and electrical properties of indium oxide thin films for solar devices. J Mater Sci 52:336–345
5. Narmada A, Kathirvel P, Lakshmi M, Saravanakumar S, Marnadu R, Chandrasekaran J (2020) Jet nebuliser spray pyrolysed indium oxide and nickel doped indium oxide thin films for photodiode application. Optik (Stuttg) 202:163701
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献