Photo-conductance of thin microstructured WO3 films in the vicinity of the edge of fundamental absorption band

S. S. Volchkov; L. A. Kochkurov; E. V. Ushakova; D. A. Zimnyakov

doi:10.1117/12.2588529

4 May 2021 Photo-conductance of thin microstructured WO₃ films in the vicinity of the edge of fundamental absorption band

S. S. Volchkov, L. A. Kochkurov, E. V. Ushakova, D. A. Zimnyakov

Author Affiliations +

Proceedings Volume 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling; 118460F (2021) https://doi.org/10.1117/12.2588529
Event: Saratov Fall Meeting 2020, 2020, Saratov, Russian Federation

Abstract

The results on the low-frequency photo-conductivity of the thin randomly inhomogeneous WO₃ layers are presented. The layers were formed using deposition of water-suspended WO₃ micro-particles onto the glass substrates with flat interdigital electrode systems. The wavelength-dependent photo-conductivity was analyzed in the spectral interval covering the edge of the fundamental absorption band (from 440 nm to 520 nm). The estimated Urbach energy of the examined system occurred equal to ≈ 0.13 eV at 308 K.

Citation Download Citation

S. S. Volchkov, L. A. Kochkurov, E. V. Ushakova, and D. A. Zimnyakov "Photo-conductance of thin microstructured WO₃ films in the vicinity of the edge of fundamental absorption band", Proc. SPIE 11846, Saratov Fall Meeting 2020: Laser Physics, Photonic Technologies, and Molecular Modeling, 118460F (4 May 2021); https://doi.org/10.1117/12.2588529

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