The impact of quantum yield through limiting efficiency for multiple exciton generation with intermediate band solar cells

Jongwon Lee, Christiana Honsberg

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

Abstract

We develop the hybrid thermodynamic limit model using the intermediate band solar cells assisted with multiple exciton generation under blackbody radiation. For this hybrid solar cell model, we manage the spectral splitting to maximize the generated number of electron and hole pairs (EHP). First, we have separated two areas to explain the carrier transition. For regarding of quantum yield and charge neutrality, the multiple EHPs are generated at barrier bandgap and one carrier generation is in quantum dot. Thus, to extract additional carrier in quantum dot, it is required additional absorption paths or more photon energy. After studying the procedure of carrier multiplication in intermediate band solar cells, we have calculated the theoretical conversion efficiencies with number of generated EHPs. Its maximum theoretical efficiencies are increased and optimum bandgap is lowered compared to conventional intermediate band solar cells. And, based on these results, we can also choose the suitable material for these hybrid solar cells.

Original languageEnglish (US)
Title of host publication39th IEEE Photovoltaic Specialists Conference, PVSC 2013
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1041-1045
Number of pages5
ISBN (Print)9781479932993
DOIs
StatePublished - Jan 1 2013
Event39th IEEE Photovoltaic Specialists Conference, PVSC 2013 - Tampa, FL, United States
Duration: Jun 16 2013Jun 21 2013

Publication series

NameConference Record of the IEEE Photovoltaic Specialists Conference
ISSN (Print)0160-8371

Other

Other39th IEEE Photovoltaic Specialists Conference, PVSC 2013
CountryUnited States
CityTampa, FL
Period6/16/136/21/13

Keywords

  • Bangap
  • Efficiency
  • Intermediate band solar cell
  • Multiple exciton generation
  • Thermodynamic limit

ASJC Scopus subject areas

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

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  • Cite this

    Lee, J., & Honsberg, C. (2013). The impact of quantum yield through limiting efficiency for multiple exciton generation with intermediate band solar cells. In 39th IEEE Photovoltaic Specialists Conference, PVSC 2013 (pp. 1041-1045). [6744319] (Conference Record of the IEEE Photovoltaic Specialists Conference). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/PVSC.2013.6744319