Thermo-coloration of SmS thin flims by XPS in situ observation

Y. Mori; S. Tanemura; S. Koide; Y. Senzaki; P. Jin; K. Kaneko; A. Terai; N. Nabotova-Gabin

doi:10.1016/S0169-4332(03)00373-8

Thermo-coloration of SmS thin flims by XPS in situ observation

Y. Mori, S. Tanemura, S. Koide, Y. Senzaki, P. Jin, K. Kaneko, A. Terai, N. Nabotova-Gabin

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

We observed new "thermo-coloration" of the surface layer of SmS film in which it turned from blue-black to gold after annealing at 650 °C for 1h in vacuum. X-ray photoelectron spectroscopy (XPS) was applied to investigate the chemical state of SmS. This phenomenon is different from the previously reported works. The contribution of Sm ³⁺ state dramatically increased upon annealing. This implied that SmS film changes from semiconductor phase to the metal one and Sm oxide. Consequently, it is suggested that new thermo-coloration of SmS film is caused by the phase transition from semiconductor to metal under the presence of Sm oxide.

Original language	English
Pages (from-to)	38-42
Number of pages	5
Journal	Applied Surface Science
Volume	212-213
Issue number	SPEC.
DOIs	https://doi.org/10.1016/S0169-4332(03)00373-8
Publication status	Published - May 15 2003

All Science Journal Classification (ASJC) codes

Chemistry(all)
Condensed Matter Physics
Physics and Astronomy(all)
Surfaces and Interfaces
Surfaces, Coatings and Films

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10.1016/S0169-4332(03)00373-8

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title = "Thermo-coloration of SmS thin flims by XPS in situ observation",

abstract = " We observed new {"}thermo-coloration{"} of the surface layer of SmS film in which it turned from blue-black to gold after annealing at 650 °C for 1h in vacuum. X-ray photoelectron spectroscopy (XPS) was applied to investigate the chemical state of SmS. This phenomenon is different from the previously reported works. The contribution of Sm 3+ state dramatically increased upon annealing. This implied that SmS film changes from semiconductor phase to the metal one and Sm oxide. Consequently, it is suggested that new thermo-coloration of SmS film is caused by the phase transition from semiconductor to metal under the presence of Sm oxide.",

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T1 - Thermo-coloration of SmS thin flims by XPS in situ observation

AU - Mori, Y.

AU - Tanemura, S.

AU - Koide, S.

AU - Senzaki, Y.

AU - Jin, P.

AU - Kaneko, K.

AU - Terai, A.

AU - Nabotova-Gabin, N.

PY - 2003/5/15

Y1 - 2003/5/15

N2 - We observed new "thermo-coloration" of the surface layer of SmS film in which it turned from blue-black to gold after annealing at 650 °C for 1h in vacuum. X-ray photoelectron spectroscopy (XPS) was applied to investigate the chemical state of SmS. This phenomenon is different from the previously reported works. The contribution of Sm 3+ state dramatically increased upon annealing. This implied that SmS film changes from semiconductor phase to the metal one and Sm oxide. Consequently, it is suggested that new thermo-coloration of SmS film is caused by the phase transition from semiconductor to metal under the presence of Sm oxide.

AB - We observed new "thermo-coloration" of the surface layer of SmS film in which it turned from blue-black to gold after annealing at 650 °C for 1h in vacuum. X-ray photoelectron spectroscopy (XPS) was applied to investigate the chemical state of SmS. This phenomenon is different from the previously reported works. The contribution of Sm 3+ state dramatically increased upon annealing. This implied that SmS film changes from semiconductor phase to the metal one and Sm oxide. Consequently, it is suggested that new thermo-coloration of SmS film is caused by the phase transition from semiconductor to metal under the presence of Sm oxide.

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JO - Applied Surface Science

JF - Applied Surface Science

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ER -

Thermo-coloration of SmS thin flims by XPS in situ observation

Abstract

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