Effects of Spontaneous Polarization on Luminous Power of GaN/AlGaN Multiple Quantum Well UV-LEDs for Light Technology

Samadrita Das, Trupti Ranjan Lenka, Fazal A. Talukdar, Ravi Teja Velpula, Barsha Jain, Hieu Pham Trung Nguyen, Giovanni Crupi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Scopus citations

Abstract

In this work, we have designed an UV-LED with multiple-quantum well of GaN/AlGaN to witness the effect of spontaneous polarization on its output characteristics and it shows some promising results. Using Silvaco TCAD it is observed that the influence of spontaneous polarization helps in improving the optical performance of the device. The built-in electric field induced by spontaneous polarization is considered at hetero-interfaces of GaN LED, which has a significant influence for its output power behavior. The simulation results suggest that the optical power in presence of spontaneous polarization is significantly greater than that compared to conventional LED; it is carried out at a temperature of 300 K. The output current, charge concentration, and the normalized power spectral densities for both the cases are discussed in this paper.

Original languageEnglish (US)
Title of host publication2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings
EditorsBratislav D. Milovanovic, Nebojsa S. Doncov, Zoran Z. Stankovic, Biljana P. Stosic
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages335-338
Number of pages4
ISBN (Electronic)9781665444422
DOIs
StatePublished - 2021
Event15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Virtual, Nis, Serbia
Duration: Oct 20 2021Oct 22 2021

Publication series

Name2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings

Conference

Conference15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021
Country/TerritorySerbia
CityVirtual, Nis
Period10/20/2110/22/21

All Science Journal Classification (ASJC) codes

  • Information Systems and Management
  • Computer Networks and Communications
  • Hardware and Architecture
  • Safety, Risk, Reliability and Quality
  • Instrumentation

Keywords

  • Deep-ultra-violet (DUV)
  • Electron blocking layer (EBL)
  • III-nitride
  • Multiple quantum wells (MQWs)
  • Polarization
  • UV-LED

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