Abstract

Third generation concepts in photovoltaic devices depend critically on the dynamics of ultrafast carrier relaxation and electron-phonon interactions on very short times scales in nanostructures such as quantum wells, wires and dots. Hot carrier solar cells in particular depend on the reduction in the energy relaxation rate in an absorber material, where hot carriers are extracted through energy selective contacts. Here we investigate the short time carrier relaxation in quantum well, hot electron solar cells under varying photoexcitation conditions using ensemble Monte Carlo (EMC) simulation coupled with rate equation models, to understand the limiting factors affecting cell performance. In particular, we focus on the potential role of hot phonons in reducing the energy loss rate in order to achieve sufficient carrier temperature for efficient performance.

Original languageEnglish (US)
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages2066-2070
Number of pages5
DOIs
StatePublished - 2011
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: Jun 19 2011Jun 24 2011

Other

Other37th IEEE Photovoltaic Specialists Conference, PVSC 2011
CountryUnited States
CitySeattle, WA
Period6/19/116/24/11

Fingerprint

Hot carriers
Phonons
Semiconductor quantum wells
Solar cells
Electron-phonon interactions
Hot electrons
Photoexcitation
Nanostructures
Energy dissipation
Wire
Temperature
Monte Carlo simulation

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Control and Systems Engineering
  • Industrial and Manufacturing Engineering

Cite this

Goodnick, S., & Honsberg, C. (2011). Ultrafast carrier relaxation and nonequilibrium phonons in hot carrier solar cells. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 2066-2070). [6186359] https://doi.org/10.1109/PVSC.2011.6186359

Ultrafast carrier relaxation and nonequilibrium phonons in hot carrier solar cells. / Goodnick, Stephen; Honsberg, Christiana.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. p. 2066-2070 6186359.

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

Goodnick, S & Honsberg, C 2011, Ultrafast carrier relaxation and nonequilibrium phonons in hot carrier solar cells. in Conference Record of the IEEE Photovoltaic Specialists Conference., 6186359, pp. 2066-2070, 37th IEEE Photovoltaic Specialists Conference, PVSC 2011, Seattle, WA, United States, 6/19/11. https://doi.org/10.1109/PVSC.2011.6186359
Goodnick S, Honsberg C. Ultrafast carrier relaxation and nonequilibrium phonons in hot carrier solar cells. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. p. 2066-2070. 6186359 https://doi.org/10.1109/PVSC.2011.6186359
Goodnick, Stephen ; Honsberg, Christiana. / Ultrafast carrier relaxation and nonequilibrium phonons in hot carrier solar cells. Conference Record of the IEEE Photovoltaic Specialists Conference. 2011. pp. 2066-2070
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