In-plane photovoltage and photoluminescence studies in sequentially grown GaInNAs and GaInAs quantum wells
We have investigated in-plane photovoltage (IPV) and photoluminescence (PL) in sequentially grown Ga0.8In0.2As/GaAs and Ga0.8In0.2N0.015As0.985/GaAs quantum wells. Temperature, excitation intensity, spectral and time dependent study of the IPV, arising from Fermi level fluctuations along the layers...
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| Veröffentlicht in: | Journal of applied physics 2003-03, Vol.93 (5), p.2440-2448 |
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| container_title | Journal of applied physics |
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| creator | Mazzucato, S. Balkan, N. Teke, A. Erol, A. Potter, R. J. Arikan, M. C. Marie, X. Fontaine, C. Carrère, H. Bedel, E. Lacoste, G. |
| description | We have investigated in-plane photovoltage (IPV) and photoluminescence (PL) in sequentially grown Ga0.8In0.2As/GaAs and Ga0.8In0.2N0.015As0.985/GaAs quantum wells. Temperature, excitation intensity, spectral and time dependent study of the IPV, arising from Fermi level fluctuations along the layers of the double quantum well structure, gives valuable information about the nonradiative centers and hence about the optical quality of the GaInNAs quantum well. It also provides information about the radiative transition energies in all the layers. In order to obtain either the trap activation energies and the detrapping rates of photogenerated carriers in the GaInNAs the IPV results are analyzed in terms of a theoretical model based on random doping fluctuations in nominally undoped multilayer structures. The PL results are analyzed in terms of the band anticrossing model to obtain the electron effective mass from the coupling parameter CNM. |
| doi_str_mv | 10.1063/1.1541104 |
| format | Article |
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In order to obtain either the trap activation energies and the detrapping rates of photogenerated carriers in the GaInNAs the IPV results are analyzed in terms of a theoretical model based on random doping fluctuations in nominally undoped multilayer structures. 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It also provides information about the radiative transition energies in all the layers. In order to obtain either the trap activation energies and the detrapping rates of photogenerated carriers in the GaInNAs the IPV results are analyzed in terms of a theoretical model based on random doping fluctuations in nominally undoped multilayer structures. 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It also provides information about the radiative transition energies in all the layers. In order to obtain either the trap activation energies and the detrapping rates of photogenerated carriers in the GaInNAs the IPV results are analyzed in terms of a theoretical model based on random doping fluctuations in nominally undoped multilayer structures. The PL results are analyzed in terms of the band anticrossing model to obtain the electron effective mass from the coupling parameter CNM.</abstract><doi>10.1063/1.1541104</doi><tpages>9</tpages></addata></record> |
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| source | AIP Journals Complete; AIP Digital Archive |
| title | In-plane photovoltage and photoluminescence studies in sequentially grown GaInNAs and GaInAs quantum wells |
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