Temperature dependence of the interband transition in a V2O5 film | Zendy

Manil Kang | Zendy; Sok Won Kim | Zendy; Younghun Hwang | Zendy; Youngho Um | Zendy; Ji-Wook Ryu | Zendy

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Temperature dependence of the interband transition in a V2O5 film

Author(s) -

Manil Kang,

Sok Won Kim,

Younghun Hwang,

Youngho Um,

Ji-Wook Ryu

Publication year - 2013

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4808021

Subject(s) - photoluminescence , materials science , atmospheric temperature range , ellipsometry , condensed matter physics , lattice (music) , phonon , atomic electron transition , transition temperature , range (aeronautics) , absorption (acoustics) , thin film , spectral line , optoelectronics , nanotechnology , physics , thermodynamics , superconductivity , astronomy , acoustics , composite material

The temperature dependence of the interband transition in an α-V2O5 film was investigated using absorption and photoluminescence spectral measurements at a temperature range of 10–300 K. Transmission measurements in the experimental temperature range indicate that the α-V2O5 film has two distinct interband transitions, implying indirect and direct transitions. This result was confirmed by spectroscopic ellipsometry. The blue shift of both the transitions in the α-V2O5 film with decreasing temperature was explained by a reduction in the lattice-dilatation effect and the electron-phonon interaction. The PL measurements in the experimental temperature range showed that the emission near 530 nm is due to the indirect transition in the α-V2O5 film

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