期刊
APPLIED PHYSICS EXPRESS
卷 3, 期 2, 页码 -出版社
JAPAN SOC APPLIED PHYSICS
DOI: 10.1143/APEX.3.021301
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资金
- Ministry of Education, Culture, Sports, Science and Technology of Japan [18360005]
- PRESTO of the Japan Science and Technology Agency
n(+)-BaSi2/p(+)-Si tunnel junctions with different BaSi2 template layer thicknesses were grown by molecular beam epitaxy. The template was found to be indispensable for growing epitaxial n(+)-BaSi2, but the resistance of the junctions increased with template thickness. However, both epitaxial growth and low resistance were achieved for a template thickness of 1 nm. A current density of 21.9 A/cm(2) was achieved at 0.5 V. The photoresponsivity of 360-nm-thick undoped BaSi2 grown on the tunnel junction increased with bias voltage and reached 74 mA/W at 2.3 eV under a reverse bias of 4 V, the highest value ever reported for semiconducting silicides. (C) 2010 The Japan Society of Applied Physics DOI: 10.1143/APEX.3.021301
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