| 摘要 |
PROBLEM TO BE SOLVED: To improve light emitting efficiency, and to increase the variety of the selection of materials, and to obtain an element column with a large area. SOLUTION: An n type clad layer 12 made of an n type AlGaN non-single crystal body, a light emitting layer 13 containing plural fine crystals 13a made of ZnO, and a p type clad layer 14 made of p type BN non-single crystal body are successively laminated on a substrate 11 made of crystal glass. An insulating layer 15 is formed between the n type clad layer 12 and the p type clad layer 14 so that clearances between the fine crystals 13a can be filled so that leakage currents can be prevented. The insulating layer 15 is formed by oxidizing the surface of the n type clad layer 12. The light emitting layer 13 contains the plural fine crystals 13 whose crystallizability is improved so that the light emitting efficiency can be improved. Also, the variation of the selection of the materials of the light emitting layer 13, the n type clad layer 12, the p type clad layer 14, and the substrate 11 can be increased, and an element column with a large area can be formed. |
