Tailoring the properties of tin dioxide thin films by spray pyrolysis technique
Dislocation density; Grain size; Photoluminescence; Texture coefficient; Tin dioxide
Nanostructured transparent conducting SnO2 thin films have been grown on glass substrates via an environmentally benign chemical route viz spray pyrolysis. All samples were grown for various concentrations of precursor solution with the substrate kept at 350 C maintaining a spray rate of 10 mL/min. The characterizations revealed orthorhombic crystal structure with preferential growth in (112) plane for all samples. Ellipsometric analysis confirmed the good quality of the films. The sample prepared at 0.2 M concentration of precursor solution showed average transmission of 60% in the visible region with maximum conductivity of 24.86 S/cm. As synthesized samples exhibited overall Photoluminescence (PL) emission colours of green, greenish white and bluish white depending on the intensities of excitonic and oxygen vacancy defect level emissions. 2021 Elsevier B.V.
https://doi.org/10.1016/j.optmat.2021.111653 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85116917996&doi=10.1016%2fj.optmat.2021.111653&partnerID=40&md5=50a1a3516ec80228df7e4fa82748aa33
Eqbal E., Department of Basic Sciences and Humanities, KMEA Engineering College, Edathala, Aluva, 683561, Kerala, India, Optoelectronic and Nanomaterials' Research Laboratory, Department of Physics, Union Christian College, Aluva, 683102, Kerala, India; Anila E.I., Optoelectronic and Nanomaterials' Research Laboratory, Department of Physics, Union Christian College, Aluva, 683102, Kerala, India, Department of Physics and Electronics, CHRIST (Deemed to Be University), Bengaluru, 560029, India