Theoretical investigation of efficient green tunnel-junction light-emitting diodes

Yen Kuang Kuo, Ya Hsuan Shih, Jih Yuan Chang, Fang Ming Chen, Ming Lun Lee, Jinn Kong Sheu

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Green tunnel-junction (TJ) light-emitting diodes (LEDs) are investigated theoretically in this letter. The influence of Auger recombination on the optical performance of green single LED and TJ LED is explored. Simulation results show that non-uniform carrier distribution and Auger recombination are critical issues influencing the performance of conventional green LED. The TJ LED can be operated at relatively low current density that possesses suppressed Auger recombination and high quantum efficiency when compared with its single LED counterpart at the same level of output power. Simulated wall-plug efficiency of the TJ LEDs with two and three unit LEDs is increased from 5.67% to 10.51% and 12.54%, respectively, in comparison with the single LED when the output power is 21 mW.

Original languageEnglish
Article number7752856
Pages (from-to)75-78
Number of pages4
JournalIEEE Electron Device Letters
Issue number1
Publication statusPublished - 2017 Jan

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering


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