Physics of the Solid State
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Optical and electrophysical properties of La-SnO2 films
Starnikova A.P.
1, Petrov V.V.
1, Tolstyak G. V.
2, Gulyaeva I.A.
1, Bayan E.M.
2
1Institute of Nanotechnologies, Electronics and Equipment Engineering, Southern Federal University, Taganrog, Russia
2Faculty of Chemistry, Southern Federal University, Rostov-on-Don, Russia
2Faculty of Chemistry, Southern Federal University, Rostov-on-Don, Russia
Email: starnikova@sfedu.ru, vvpetrov@sfedu.ru, tolstiak@sfedu.ru, tenirka@mail.ru, ekbayan@sfedu.ru
In this work, the optical and electrophysical properties of tin dioxide thin films containing 1-5% La3+, obtained by oxidative pyrolysis, were studied using atomic force and Kelvin probe force microscopy, X-ray diffraction, and spectrophotometry. The films are optically transparent, homogeneous, and formed by crystallites 21-24 nm in size. The SnO2 film with 3% La3+ has the highest values of activation energy, roughness, and surface potential. Keywords: thin films, tin dioxide, activation energy, optical properties, transparency.
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