Charged excitons in self-assembled quantum dots

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作者
Warburton, RJ [1 ]
Urbaszek, B [1 ]
McGhee, EJ [1 ]
Schulhauser, C [1 ]
Högele, A [1 ]
Karrai, K [1 ]
Govorov, AO [1 ]
Garcia, JM [1 ]
Gerardot, BD [1 ]
Petroff, PM [1 ]
机构
[1] Heriot Watt Univ, Dept Phys, Edinburgh, Midlothian, Scotland
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TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
We have succeeded in generating highly charged excitons in InAs self-assembled quantum dots by embedding the dots in a field-effect heterostructure. We discover an excitonic Coulomb blockage: over large regions of gate voltage, the exciton charge remains constant. We present here a summary of the emission properties of the charged excitons.
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页码:95 / 105
页数:11
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