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https://doi.org/10.1063/1.121349
DC Field | Value | |
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dc.title | Electron transfer efficiency of Si δ-modulation-doped pseudomorphic GaAs/In0.2Ga0.8As/AlxGa1-xAs quantum wells | |
dc.contributor.author | Li, G. | |
dc.contributor.author | Babinski, A. | |
dc.contributor.author | Chua, S.J. | |
dc.contributor.author | Jagadish, C. | |
dc.date.accessioned | 2014-10-07T02:57:02Z | |
dc.date.available | 2014-10-07T02:57:02Z | |
dc.date.issued | 1998 | |
dc.identifier.citation | Li, G., Babinski, A., Chua, S.J., Jagadish, C. (1998). Electron transfer efficiency of Si δ-modulation-doped pseudomorphic GaAs/In0.2Ga0.8As/AlxGa1-xAs quantum wells. Applied Physics Letters 72 (18) : 2322-2324. ScholarBank@NUS Repository. https://doi.org/10.1063/1.121349 | |
dc.identifier.issn | 00036951 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/80392 | |
dc.description.abstract | In Si δ-modulation-doped GaAs/In0.2Ga0.8As/AlxGa1-xAs quantum well structures (QWs), the electrons from the ionized Si donors are initially confined in the V-shaped potential well (V-PW) formed at the position of a Si δ-doped layer. The efficiency of electrons transferring from the V-PW to the QW was investigated as a function of Si δ-doping concentration in the symmetric GaAs/In0.2Ga0.8As/GaAs QW at 1.7 K. The electron density in the QW increases linearly with an increase of Si δ-doping concentration, while the electron transfer efficiency remains unchanged either in the dark or under the illumination. The asymmetric GaAs/In0.2Ga0.8As/Al0.2Ga0.8As QW has a relatively higher electron transfer efficiency. The effect of grading the Al mole fraction over the AlxGa1-xAs spacer layer on the electron transfer efficiency was also reported. © 1998 American Institute of Physics. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1063/1.121349 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | ELECTRICAL ENGINEERING | |
dc.description.doi | 10.1063/1.121349 | |
dc.description.sourcetitle | Applied Physics Letters | |
dc.description.volume | 72 | |
dc.description.issue | 18 | |
dc.description.page | 2322-2324 | |
dc.description.coden | APPLA | |
dc.identifier.isiut | 000073362300042 | |
Appears in Collections: | Staff Publications |
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