Prismatic covers for boosting the efficiency of high-concentration PV systems

Andreea Boca, Kenneth M. Edmondson, Richard King

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

10 Citations (Scopus)

Abstract

Prismatic cover experiments were performed on GaInP/Ga(In)As/Ge triple-junction concentrator solar cells having grid designs with up to 39% metal coverage. The devices were characterized both before and after the application of optically-clear silicone covers patterned with cylindrical-lens microstructures. In solar-simulator LIV measurements at 1 sun and at 500 suns, we observed a boost in the efficiency of prism-covered cells, relative to before covering, of up to 34%, depending on the grid coverage fraction. The spectral response of the cells before and after covering was also characterized, and the observed boost in external quantum efficiency was found to be consistent with the LIV performance gains. Also studied were the lateral tolerances allowed by the prismatic covers, for alignment to the underlying cell grid structure, as a function of the maximum angle of incidence of the light impinging onto the cell. Ray-tracing simulations were performed, and found to be consistent with preliminary angular-dependence spectral response measurements done under monochromatic illumination.

Original languageEnglish (US)
Title of host publicationConference Record of the IEEE Photovoltaic Specialists Conference
Pages131-136
Number of pages6
DOIs
StatePublished - 2009
Externally publishedYes
Event2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009 - Philadelphia, PA, United States
Duration: Jun 7 2009Jun 12 2009

Other

Other2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009
CountryUnited States
CityPhiladelphia, PA
Period6/7/096/12/09

Fingerprint

Ray tracing
Prisms
Quantum efficiency
Silicones
Sun
Lenses
Solar cells
Lighting
Simulators
Microstructure
Metals
Experiments

ASJC Scopus subject areas

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

Cite this

Boca, A., Edmondson, K. M., & King, R. (2009). Prismatic covers for boosting the efficiency of high-concentration PV systems. In Conference Record of the IEEE Photovoltaic Specialists Conference (pp. 131-136). [5411714] https://doi.org/10.1109/PVSC.2009.5411714

Prismatic covers for boosting the efficiency of high-concentration PV systems. / Boca, Andreea; Edmondson, Kenneth M.; King, Richard.

Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. p. 131-136 5411714.

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

Boca, A, Edmondson, KM & King, R 2009, Prismatic covers for boosting the efficiency of high-concentration PV systems. in Conference Record of the IEEE Photovoltaic Specialists Conference., 5411714, pp. 131-136, 2009 34th IEEE Photovoltaic Specialists Conference, PVSC 2009, Philadelphia, PA, United States, 6/7/09. https://doi.org/10.1109/PVSC.2009.5411714
Boca A, Edmondson KM, King R. Prismatic covers for boosting the efficiency of high-concentration PV systems. In Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. p. 131-136. 5411714 https://doi.org/10.1109/PVSC.2009.5411714
Boca, Andreea ; Edmondson, Kenneth M. ; King, Richard. / Prismatic covers for boosting the efficiency of high-concentration PV systems. Conference Record of the IEEE Photovoltaic Specialists Conference. 2009. pp. 131-136
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