Concurrent activation of localized surface plasmons and polarons in tungsten oxide nanoparticles

Mitsuru Inada; Hiroki Hasegawa; Shota Yamanaka

doi:10.1117/12.2569102

19 August 2020 Concurrent activation of localized surface plasmons and polarons in tungsten oxide nanoparticles

Mitsuru Inada, Hiroki Hasegawa, Shota Yamanaka

Proceedings Volume 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII; 114622U (2020) https://doi.org/10.1117/12.2569102
Event: SPIE Nanoscience + Engineering, 2020, Online Only

Conference Poster

Abstract

We prepare metallic tungsten oxide(WO3-x) nanoparticles by RF sputtering without doping, and investigate optical properties of the nanoparticles. Optical absorption spectra show clear two independent absorption species in near-infrared region, which are originated from localized surface plasmon resonance and polaron. This concurrent activation property not only provides a stage for understanding the fundamental physics of plasmon and polaron of tungsten oxide nanoparticles, but also shows that the nanoparticles are interesting candidates for device application.

Citation Download Citation

Mitsuru Inada, Hiroki Hasegawa, and Shota Yamanaka "Concurrent activation of localized surface plasmons and polarons in tungsten oxide nanoparticles", Proc. SPIE 11462, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII, 114622U (19 August 2020); https://doi.org/10.1117/12.2569102

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