상세정보
학술지
Analytic Formalism for Current Crowding in Light Emitting Diodes
- 저자
- 이규석
- 발행일
- 201209
- 출처
- Physica Status Solidi (A), v.209 no.12, pp.2630-2634
- ISSN
- 1862-6300
- 출판사
- Wiley-VCH Verlag GmbH
- 협약과제
- 12VB2300, 전력변환효율 75%급 LED 광소자공정 및 표준 분석기술 개발, 이규석
- 초록
- This paper presents an analytic approach to simulating current crowding (CC) in light-emitting diodes with parallel p- and n-contacts. The electrical potential difference across the p-i-n layers is derived from the Laplace equation, whereas the current density through the p-i-n layers is obtained from the current density - voltage relation of a single-diode model. Since these two properties influence each other, they are calculated iteratively. It is found that CC depends on the applied voltage (or the average current density), the sheet resistances of the p- and the n-contact layers, the width of the active region, and the specific series resistance and ideality factor of the p-i-n layers. Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- KSP 제안 키워드
- Analytic Approach, Average current, Co. KGaA, Electrical potential difference, Laplace equation, P-i-n, Single-diode model, active region, applied voltage, current crowding, current density