The effect of structure parameters on the electroluminescence and photoconductivity of multilayer structures with self-assembled Ge(Si)/Si(0 0 1) islands has been studied. The highest intensity of the room-temperature electroluminescence in the wavelength range of 1.3-1.55 mu m has been observed for the islands grown at 600 degrees C. The same diode structures with Ge(Si)/Si(0 0 1) islands have demonstrated room-temperature photoconductivity signals in the wavelength range of 1.3-1.55 mu m. The observed overlap of the electroluminescence and photoconductivity spectra obtained for the same structures with Ge(Si) islands makes these structures a promising material for the fabrication of a Si-based optocoupler. Less degradation after neutron irradiation has been observed for the electroluminescence and photoconductivity signals from multilayer structures with Ge(Si) self-assembled islands in comparison with bulk silicon structures. This result is associated with more effective confinement of charge carriers in the multilayer structures with Ge(Si) islands.
机构:
Univ Habana, Fac Fis, Havana 10400, Cuba
Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
de Melo, O.
Ramirez-Lopez, M.
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Inst Politecn Nacl, Unidad Profes Interdisciplinaria Ingn & Tecnol Av, Av IPN 2580, Ciudad De Mexico 07340, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Ramirez-Lopez, M.
Perez-Caro, M.
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Inst Tecnol Super Teziutlan, Fracc 1 & 2 S-N, Puebla 73960, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Perez-Caro, M.
Gallardo-Hernandez, S.
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Ctr Invest & Estudios Avanzados IPN, Dept Fis, Apdo Postal 14-740, Mexico City 07000, DF, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Gallardo-Hernandez, S.
Casallas-Moreno, Y. L.
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Inst Politecn Nacl, CONACYT Unidad Profes Interdisciplinaria Ingn & T, Av IPN 2580, Ciudad De Mexico 07340, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Casallas-Moreno, Y. L.
Sanchez, M.
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Univ Habana, Fac Fis, Havana 10400, CubaUniv Habana, Fac Fis, Havana 10400, Cuba
Sanchez, M.
Ortega, J.
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Univ Habana, Fac Fis, Havana 10400, Cuba
Univ Autonoma Nuevo Leon, San Nicolas De Los Garza, Nuevo Leon, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Ortega, J.
Santana, G.
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Univ Nacl Autonoma Mexico, Inst Invest Mat, Mexico City 04510, DF, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
Santana, G.
Behar, M.
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Univ Fed Rio Grande do Sul, Phys Inst, Ion Implantat Lab, CP 15051, BR-91501970 Porto Alegre, RS, BrazilUniv Habana, Fac Fis, Havana 10400, Cuba
Behar, M.
Gonzalez, Y.
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Univ Habana, Fac Fis, Havana 10400, Cuba
Ctr Energie Mat Telecommun, Inst Natl Rech Sci, Montreal, PQ, CanadaUniv Habana, Fac Fis, Havana 10400, Cuba
Gonzalez, Y.
Lopez-Lopez, M.
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Ctr Invest & Estudios Avanzados IPN, Dept Fis, Apdo Postal 14-740, Mexico City 07000, DF, MexicoUniv Habana, Fac Fis, Havana 10400, Cuba
机构:
Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
GRINM Semicond Mat Co Ltd, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
Xu, Wen-ting
Tu, Hai-ling
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Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
Tu, Hai-ling
Liu, Da-li
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Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
Liu, Da-li
Teng, Ran
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Gen Res Inst Nonferrous Met, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
Teng, Ran
Xiao, Qing-hua
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GRINM Semicond Mat Co Ltd, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
Xiao, Qing-hua
Chang, Qing
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GRINM Semicond Mat Co Ltd, Beijing 100088, Peoples R ChinaGen Res Inst Nonferrous Met, Beijing 100088, Peoples R China
机构:
Univ Milano Bicocca, Dipartimento Sci Mat, I-20125 Milan, Italy
Univ Milano Bicocca, L NESS, I-20125 Milan, ItalyPolitecn Milan, CNISM Dipartimento Fis, I-20133 Milan, Italy
Bonera, E.
Nicotra, G.
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IMM CNR, I-95121 Catania, ItalyPolitecn Milan, CNISM Dipartimento Fis, I-20133 Milan, Italy