Hydrogen Passivation of Deep Levels in Amorphous Semiconductors
Hydrogen Passivation of Deep Levels in Amorphous Semiconductors
批准号:
03640291
负责人:
YOSHIDA Hiroshi
金额:
$0.83万
依托单位:
依托单位国家:
日本
项目类别:
Grant-in-Aid for General Scientific Research (C)
财政年份:
1991
资助国家:
日本
项目状态:
已结题
起止时间:
1991 至 1992
中文摘要
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英文摘要
We have studied the role of hydrogen and passivation mechanisms of deep impurity levels in amorphous silicon by hydrogen using ab-initio molecular dynamics.We found(1)deep levels of silicon dangling in the mid-band gap is terminated by hydrogen,(2)Si-H-Si three centered bonds are formed and soften the amorphous structure,(3)three coordinated silicon dangling bond which act as deep impurity levels exits in amorphous silicon,and(4)five coordinated silicon bonds(floating)exit in amorphous silicon.Based upon the calculated results,we have discussed the mechanism of the hydrogen passivation and the roles in amorphous silicon.
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T.SASAKI:“硒化锌中锂杂质原子的电子结构和稳定性。”
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H.KatayamaーYoshida: "Hyperfine and Superhyperfine Interaction Parameters of Interstitial 3d Transition Atom Impurities in Semiconductors." to be published in the Springer Series in Solid State Sciences. (International Workshop on Hyperfine Interaction of
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C.Kaneta,H.KatayamaーYoshida T.Sasaki: "Atomic Configuration and Its Stability of CarbonーOxygen Complex in Silicon." Proceedings of 20ーth nternational Conference on the Physics of Semiconductors,World Scientific Pub.638-642 (1991)
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H.KATAYAMA-YOSHIDA,: "Theory of the Self-compensation in p-type ZnSe" J.of Crys.Growth. 119. 625-632 (1992)
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