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Monte Carlo Simulation of Ultrafast Carrier Relaxation in Type I and Type II InAs-based Quantum Wells

  • Izak Baranowski
  • , Yongjie Zou
  • , Hamidreza Esmaielpour
  • , Ian Sellers
  • , Dragica Vasileska
  • , Stephen M. Goodnick
  • Arizona State University
  • First Solar, Inc.
  • Technical University of Munich

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The ultrashort time scale carrier dynamics of photoexcited carriers in semiconductor nanostructures is critical in controlling energy loss processes, which is necessary to realize advanced concept photovoltaic devices based on concepts such as hot carrier extraction. Here, we compare ensemble Monte Carlo (EMC) simulation of carrier dynamics in semiconductor multi-quantum well (MQW) structures with continuous wave photoluminescence studies performed in type I and type II InGaAs quantum wells. We compare the effects of including nonequilibrium phonon effects as well as the inclusion of intervalley scattering in the EMC simulations on the simulated carrier distribution functions in comparison with the PL studies. EMC analysis shows that reduced carrier cooling is predominantly due to nonequilibrium LO phonons. For type II systems, additional effects due to real space transfer and delocalization of the photoexcited holes occur.

Original languageEnglish
Title of host publicationPhysics, Simulation, and Photonic Engineering of Photovoltaic Devices XII
EditorsAlexandre Freundlich, Stephane Collin, Karin Hinzer
PublisherSPIE
ISBN (Electronic)9781510659377
DOIs
StatePublished - 2023
EventPhysics, Simulation, and Photonic Engineering of Photovoltaic Devices XII 2023 - San Francisco, United States
Duration: Jan 30 2023Feb 1 2023

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume12416
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferencePhysics, Simulation, and Photonic Engineering of Photovoltaic Devices XII 2023
Country/TerritoryUnited States
CitySan Francisco
Period01/30/2302/1/23

Keywords

  • Ensemble Monte Carlo
  • Hot-carrier solar cell
  • LO phonon bottleneck
  • multi-quantum well
  • Type I
  • Type II heterostructures
  • ultrafast carrier relaxation

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