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Electronic properties of calcined materials from a scandium-O-phenylene-O-yttrium-O-phenylene hybrid copolymer |
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| Authors: | Tetsuro Kawahara Taketoshi Kuroda Hideo Matsui Masaru Mishima Subbian Karuppuchamy Yasuhiro Seguchi Masakuni Yoshihara |
| Affiliation: | (1) Technical Development Department, Architectural Glass Company, Nippon Sheet Glass Co. Ltd, 2-1-7, Kaigan, Minato-ku, Tokyo 105-8552, Japan;(2) Department of Applied Chemistry, Faculty of Science and Engineering, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan;(3) Molecular Engineering Institute, Kinki University, 11-6, Kayanomori, Iizuka, Fukuoka 820-8555, Japan;(4) Molecular Engineering Institute, Kinki University, 3-4-1, Kowakae, Higashiosaka, Osaka 577-8502, Japan |
| Abstract: | Calcination of a scandium-O-phenylene-O-yttrium-O-phenylene hybrid copolymer under an argon atmosphere at 400–800 °C was performed. The calcined materials were found to be composed of nano-sized Sc2O3 and Y2O3 particles in the matrix of carbon clusters. ESR spectral examinations of the calcined materials suggest that a two-step electron transfer of Y2O3 → carbon clusters → Sc2O3 → carbon clusters took place to provide a photo-responsive oxidation–reduction function with an oxidation site at Y2O3 particles and a reduction site at carbon clusters. |
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