Recent Advances in Microcell Concentrating Photovoltaics for Space

Christian J. Ruud, Brent Fisher, Jeffrey M. Gordon, Noel C. Giebink

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


Microscale concentrating photovoltaics can improve the efficiency and reduce the cost of photovoltaic power in space. We report progress on a lightweight, monolithic, and ultrathin reflective concentrator for space based on triple-junction transfer printed microscale photovoltaic cells. The 1 mm-thick first-generation prototype validates optical modeling and delivers 24 efficiency with a ± 9° acceptance angle. These results provide the foundation for a second-generation prototype based on an optimal paraboloidal reflector that is predicted to achieve a specific power >350 W/kg over an acceptance angle of ± 7°.

Original languageEnglish
Title of host publication2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages3
ISBN (Electronic)9781728104942
StatePublished - 1 Jun 2019
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: 16 Jun 201921 Jun 2019

Publication series

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


Conference46th IEEE Photovoltaic Specialists Conference, PVSC 2019
Country/TerritoryUnited States


  • CPV
  • concentrating photovoltaics
  • microcells
  • optics
  • space

ASJC Scopus subject areas

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


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