Bipolar Monte Carlo simulation of hot carriers in III-N LEDs

Pyry Kivisaari, Toufik Sadi, Jingrui Li, Vihar Georgiev, Jani Oksanen, Patrick Rinke, Jukka Tulkki

Research output: Chapter in Book/Report/Conference proceedingPaper in conference proceedingpeer-review

Abstract

We carry out bipolar Monte Carlo (MC) simulations of electron and hole transport in a multi-quantum well light-emitting diode with an electron-blocking layer. The MC simulation accounts for the most important interband recombination and intraband scattering processes and solves self-consistently for the non-quasiequilibrium transport. The fully bipolar MC simulator results in better convergence than our previous Monte Carlo-drift-diffusion (MCDD) model and also shows clear signatures of hot holes. Accounting for both hot electron and hot hole effects increases the total current and decreases the efficiency especially at high bias voltages. We also present our in-house full band structure calculations for GaN to be coupled later with the MC simulation in order to enable even more detailed predictions of device operation.

Original languageEnglish
Title of host publication2015 International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2015
PublisherIEEE - Institute of Electrical and Electronics Engineers Inc.
Pages393-396
Number of pages4
ISBN (Electronic)9781467378581
DOIs
Publication statusPublished - 2015 Oct 5
Event20th International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2015 - Washington, United States
Duration: 2015 Sept 92015 Sept 11

Conference

Conference20th International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2015
Country/TerritoryUnited States
CityWashington
Period2015/09/092015/09/11

Subject classification (UKÄ)

  • Other Electrical Engineering, Electronic Engineering, Information Engineering

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