Nonradiative recombination mechanisms in InGaN/GaN light-emitting diodes analyzed by various device characterization techniques

Title
Nonradiative recombination mechanisms in InGaN/GaN light-emitting diodes analyzed by various device characterization techniques
Authors
신동수
Keywords
light-emitting diode; nonradiative recombination; defect; InGaN; temperature-dependent electroluminescence
Issue Date
2015-02
Publisher
SPIE
Citation
SPIE 9363, Gallium Nitride Materials and Devices X, Page. 936321-936324
Abstract
In InGaN/GaN blue light-emitting diodes (LEDs) widely utilized for general lighting, there exist various material issues that lead to the unwanted nonradiative recombination. In this paper, we utilize various characterization techniques to investigate the nonradiative recombination mechanisms in LED devices. With the characterization techniques such as temperature-dependent external quantum efficiency, current-voltage, and electroluminescence spectra, we show that different nonradiative recombination processes such as the Shockley-Read-Hall recombination and the defect-assisted tunneling can play roles in the LED devices. Information on the dominant nonradiative recombination obtained by these analyses can be used for further improving the quantum efficiency of the device. © (2015) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
URI
http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=2206198http://hdl.handle.net/20.500.11754/22303
ISSN
0277-786X
DOI
http://dx.doi.org/10.1117/12.2078970
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
Files in This Item:
Nonradiative recombination mechanisms in InGaNGaN light-emitting diodes analyzed by various device characterization techniques.pdfDownload
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE