In:
Applied Physics Letters, AIP Publishing, Vol. 102, No. 12 ( 2013-03-25)
Abstract:
In this work, we propose I–VII semiconductor hetero-structure quantum wells as active layers, which have a large exciton binding energy suitable for strong optical transitions in light-emitting devices. They are also closely lattice-matched to Si substrates, therefore free from defects. A multiband effective mass approach and non-Markovian model including the excitonic effects are used to study the optical gain. It is found that the optical gain of our design would be much higher than that of III–V nitride layers due to the inherent strong excitonic effects and negligible electrostatic fields within the active layers leading to highly efficient optical devices.
Type of Medium:
Online Resource
ISSN:
0003-6951
,
1077-3118
Language:
English
Publisher:
AIP Publishing
Publication Date:
2013
detail.hit.zdb_id:
211245-0
detail.hit.zdb_id:
1469436-0
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