| 摘要 |
A substrate for forming a single-crystal thin film composed mainly of gallium nitride, indium nitride or aluminum nitride, the substrate consisting of a sintered compact composed mainly of a ceramic material; and a thin-film substrate furnished with the single-crystal thin film. The use of the sintered compact composed mainly of a ceramic material, especially translucent sintered compact, as the substrate enables formation thereon of a highly crystalline single-crystal thin film composed mainly of at least one member selected from among gallium nitride, indium nitride and aluminum nitride. Thus, there is provided a thin-film substrate furnished with a highly crystalline single-crystal thin film. Further, the use of the sintered compact composed mainly of a ceramic material enables providing of a light emitting element excelling in luminous efficiency.
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