Silicon multiple exciton generation/pn junction hybrid solar cell

Sean Jacobs, Michael Levy, Elton Marchena, Christiana B. Honsberg

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

3 Scopus citations


The concept of a nanostructured-surface/pn junction hybrid solar cell has been modeled to incorporate multiple excitons generation effects. Using the mature silicon solar cell as a base, a nanostructured surface can be made to increase efficient absorption of high energy light by impact ionization induced multiple exciton effects. The nanostructured surface has additional benefits including anti-reflection and a surface field at the quantum confined regions. An ideal detailed-balance efficiency of 41.2% is found for the hybrid solar cell under one sun illumination. This is reduced to 33% when taking into account non-idealities yet both models increase rapidly with concentration as discussed thus motivating a search for the best nanostructured surface to yield multiple excitons generation. A preliminary design of such a surface has been chosen and fabrication is shown.

Original languageEnglish (US)
Title of host publication33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
StatePublished - Dec 1 2008
Externally publishedYes
Event33rd IEEE Photovoltaic Specialists Conference, PVSC 2008 - San Diego, CA, United States
Duration: May 11 2008May 16 2008

Publication series

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


Other33rd IEEE Photovoltaic Specialists Conference, PVSC 2008
Country/TerritoryUnited States
CitySan Diego, CA

ASJC Scopus subject areas

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


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