A comparison of 3 rd generation solar cell efficiencies using thermodynamic transfer functions: Which method is best?

Ze'ev R. Abrams, Avi Niv, Majid Gharghi, Chris Gladden, Xiang Zhang

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

1 Scopus citations

Abstract

Exceeding the Shockley-Queisser efficiency limit for a single junction solar cell has been theorized using various means. Specifically, up- and down-conversion, carrier multiplication and intermediate band transitions have been posited as methods of improving the efficiency. Here, we compare these methods using a thermodynamic approach with a newly devised pseudo-linear system model. This method allows a schematic interpretation of the internal processes of efficiency enhancement techniques. In particular, we demonstrate that down-conversion is thermodynamically preferable to carrier multiplication, and that splitting the sun's spectrum before impinging upon the solar cell is preferable to attempting to do this within the solar cell itself.

Original languageEnglish
Title of host publicationProgram - 37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Pages2031-2035
Number of pages5
DOIs
StatePublished - 1 Dec 2011
Externally publishedYes
Event37th IEEE Photovoltaic Specialists Conference, PVSC 2011 - Seattle, WA, United States
Duration: 19 Jun 201124 Jun 2011

Publication series

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

Conference

Conference37th IEEE Photovoltaic Specialists Conference, PVSC 2011
Country/TerritoryUnited States
CitySeattle, WA
Period19/06/1124/06/11

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