Ultralight Luminescent Solar Concentrators for Space Solar Power Systems

David R. Needell, Haley Bauser, Megan Phelan, Colton R. Bukowsky, Ognjen Ilic, Michael D. Kelzenberg, Harry A. Atwater

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

5 Scopus citations


Space-based solar power systems (SSPS) offer a renewable source of energy generation that features higher power production than terrestrial photovoltaics (PV) systems with visibly unobstructed access to direct sunlight. Because of the high launch and deployment costs for SSPS, PV arrays intended for such applications are designed so as to maximize the specific power (W/kg) of the array. Here we present a first analysis for a luminescent solar concentrator (LSC) module designed for SSPS. LSC devices absorb and trap incident sunlight in a planar dielectric waveguide through photon downshifting via absorption and Stokes-shifted emission from embedded luminophores. Emitted photons are trapped within the waveguide and concentrated onto small area solar cells, spectrally matched to the luminophore band edge. Here we investigate the influence of luminophore material and concentration factor on the LSC specific power. We develop an LSC system design that can achieve up to 1.8 kW/kg.

Original languageEnglish (US)
Title of host publication2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages4
ISBN (Electronic)9781728104942
StatePublished - Jun 2019
Event46th IEEE Photovoltaic Specialists Conference, PVSC 2019 - Chicago, United States
Duration: Jun 16 2019Jun 21 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

Bibliographical note

Publisher Copyright:
© 2019 IEEE.


  • Monte Carlo methods
  • photoluminescence
  • photovoltaic cells
  • quantum dots
  • space technology


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