Ultra-compact high flux tailored edge-ray space microconcentrators

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

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

4 Scopus citations


Microcell concentrating photovoltaics are being explored for space photovoltaic power due to their compact, monolithic design and potential to both reduce III-V cost and improve performance. This paper introduces a new ultra-compact and high flux microcell concentrator design. Ray tracing results validate the analytical construction and a proof-of-concept prototype measured with a 600 micron square GaAs microcell yields a concentration ratio of 90 with an acceptance half-angle of 5 degrees. These results lay the groundwork for ultra-thin (under 1 mm), high concentration ratio (CR > 100) microconcentrators with sizable optical tolerance for space.

Original languageEnglish
Title of host publication2021 IEEE 48th Photovoltaic Specialists Conference, PVSC 2021
PublisherInstitute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781665419222
StatePublished - 20 Jun 2021
Event48th IEEE Photovoltaic Specialists Conference, PVSC 2021 - Fort Lauderdale, United States
Duration: 20 Jun 202125 Jun 2021

Publication series

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


Conference48th IEEE Photovoltaic Specialists Conference, PVSC 2021
Country/TerritoryUnited States
CityFort Lauderdale


  • III-V
  • concentrating photovoltaics
  • microcell
  • solar energy
  • space solar array

ASJC Scopus subject areas

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


Dive into the research topics of 'Ultra-compact high flux tailored edge-ray space microconcentrators'. Together they form a unique fingerprint.

Cite this