Determination of fundamental optical constant of Zn2SnO4 films
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Date
2017
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V. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine
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Abstract
Examined in this paper have been optical properties of polycrystalline films
Zn2SnO4 deposited using the spray pyrolysis method within the range of substrate
temperatures 250 °C to 450 °C in increments of 50 °C. The spectral dependences have
been found for the following physical quantities: k(λ), n(λ), ε1(λ), ε2(λ) and defined as
they change under the influence of substrate temperature Тs. Moreover, using the model by
Wemple–DiDomenico it was calculated the dispersion energy Ео and Ed for this oxide.
Two independent methods defined band gaps Zn2SnO4, which decreases from
4.21…4.22 eV down to 4.04…4.05 eV with increasing Тs from 250 °C up to 450 °C.
Keywords
тонкі плівки, тонкие пленки, thin film, оптичні властивості, оптические значения, optical properties
Citation
Determination of fundamental optical constant of Zn2SnO4 films [Text] / A.O. Salohub, A.A. Voznyi, O.V. Klymov [et al.] // Semiconductor Physics, Quantum Electronics & Optoelectronics. - 2017. - Vol. 20, № 1. P. 79-84. - doi: https://doi.org/10.15407/spqeo20.01.079.