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Ultraviolet Lasers Realized via Electrostatic Doping Method
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DOI：10.1038/srep13641.png)
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Abstract
En 中文
P-type doping of wide-bandgap semiconductors has long been a challenging issue for the relatively large activation energy and strong compensation of acceptor states in these materials, which hinders their applications in ultraviolet (UV) optoelectronic devices drastically. Here we show that by employing electrostatic doping method, hole-dominant region can be formed in wide bandgap semiconductors, and UV lasing has been achieved through the external injection of electrons into the hole-dominant region, confirming the applicability of the p-type wide bandgap semiconductors realized via the electrostatic doping method in optoelectronic devices.
Keywords:
LIGHT-EMITTING-DIODES
PHOTOLUMINESCENCE
EMISSION
BLUE
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