Modulation of hole-injection in GaInN-light emitting triodes and its effect on carrier recombination behavior

The effects of the hole injection modulated by using a three-terminal GaInN-based light emitter, light-emitting triode (LET), on carrier recombination behavior and efficiency droop are investigated. It was found that the lateral electric field created by applying voltage bias between the two anodes...

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Bibliographic Details
Main Authors: Sunyong Hwang, Dong Yeong Kim, Jun Hyuk Park, Han-Youl Ryu, Jong Kyu Kim
Format: Article
Language:English
Published: AIP Publishing LLC 2015-10-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4932632
Description
Summary:The effects of the hole injection modulated by using a three-terminal GaInN-based light emitter, light-emitting triode (LET), on carrier recombination behavior and efficiency droop are investigated. It was found that the lateral electric field created by applying voltage bias between the two anodes effectively reduces efficiency droop as well as dynamic conductance of LETs. Detailed analyses of LETs under various operation conditions by APSYS simulations reveal that the asymmetry in carrier transport between electrons and holes is alleviated by promoted injection of hot holes over the potential barrier, increasing the hole concentration as well as the radiative recombination rate in the multiple quantum well active region.
ISSN:2158-3226