Investigation of carrier spill-over in InGaN-based light-emitting diodes by temperature dependences of resonant photoluminescence and open-circuit voltage
- Authors
- Han, Dong-Pyo; Kang, Min-Goo; Oh, Chan-Hyoung; Kim, Hyunsung; Kim, Kyu-Sang; Shin, Dong-Soo; Shim, Jong-In
- Issue Date
- Oct-2013
- Publisher
- Wiley - V C H Verlag GmbbH & Co.
- Keywords
- carrier spill-over; efficiency droop; open-circuit voltage; resonant photoluminescence
- Citation
- Physica Status Solidi (A) Applications and Materials, v.210, no.10, pp.2204 - 2208
- Indexed
- SCIE
SCOPUS
- Journal Title
- Physica Status Solidi (A) Applications and Materials
- Volume
- 210
- Number
- 10
- Start Page
- 2204
- End Page
- 2208
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/26792
- DOI
- 10.1002/pssa.201329187
- ISSN
- 1862-6300
- Abstract
- In InGaN-based light-emitting diodes (LEDs), carrier leakage to the outside of the active quantum wells (QWs) has been considered as one of the dominant carrier loss mechanisms at high current densities. In order to verify the carrier spill-over phenomenon, we compared the electroluminescence (EL) efficiency, the resonant photoluminescence (PL) efficiency, and the open-circuit voltage as functions of current, temperature, and excitation laser power. Very similar tendencies were experimentally observed among the three physical quantities, which implied that carriers were spilt over out of the QWs even in the resonant PL experiment.
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Collections - COLLEGE OF SCIENCE AND CONVERGENCE TECHNOLOGY > DEPARTMENT OF PHOTONICS AND NANOELECTRONICS > 1. Journal Articles
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