1.3MUM LUMINESCENCE IN (INAS)N/(GAAS)N STRAINED QUANTUM-WELL STRUCTURES GROWN ON GAAS

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作者
ROAN, EJ [1 ]
CHENG, KY [1 ]
PEARAH, PJ [1 ]
LIU, X [1 ]
HSIEH, KC [1 ]
BISHOP, SG [1 ]
机构
[1] UNIV ILLINOIS, CTR COMPOUND SEMICOND MICROELECTR, URBANA, IL 61801 USA
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O4 [物理学];
学科分类号
0702 ;
摘要
Optical emission from pseudomorphic InGaAs-on-GaAs quantum-well heterostructures has been extended to useful wavelengths (1.3-mu-m) by replacing an InxGa1-xAs random alloy quantum well with an (InAs)n/(GaAs)n short-period superlattice (SPS). With the same quantum-well width, the photoluminescence peak wavelength of the SPS structure is always longer than that of the In0.5Ga0.5As random-alloy structure. Strong photoluminescence was observed in (InAs)n/(GaAs)n SPS quantum wells with thicknesses up to 72 angstrom. The longest optical-emission wavelength observed at room temperature in (InAs)n/(GaAs)n SPS quantum-well structures was 1.34-mu-m.
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页码:577 / 582
页数:6
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