Quantum cutting organic-inorganic nanocomposites

Abdalla M. Darwish, Sergey S. Sarkisov, Simeon Wilson, Eboni Collins, Darayas N. Patel, Paolo Mele, Brent Koplitz

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

1 Citation (Scopus)


We report on organic-inorganic nanocomposites with combined properties of quantum cutting and down shifting of solar UV spectrum. They cut a single high energy UV photon of solar radiation in two near-IR (NIR) low energy photons and use the energy of the UV photon to produce low energy visible photons. The applications include solar spectrum down-convertors and luminescent solar concentrators (LSCs). The nanocomposites were made of organic hosts filled the nanoparticles of Lanthanide doped fluoride phosphor NaYF4:Yb3+, Er3+. As an organic host for the nanoparticles in an LSC simulator 1-Propanol was used. The particles of the synthesized phosphor powder were ball-milled to an average size of~ 200-nm. The LSC filled with the phosphor nanocolloid produced 130% more electric power than in case of pure 1-Propanol. This effect was not observed when the LSC was illuminated with an incandescent light bulb with no UV component in its radiation spectrum. The LSC performance was thus due to down shifting and quantum cutting of the UV spectral component of solar radiation by the phosphor nanoparticles into visible and NIR radiation matching the spectral response of the silicon PV solar cells. The results are of interest for green solar power.

Original languageEnglish
Title of host publicationPhotonic Fiber and Crystal Devices
Subtitle of host publicationAdvances in Materials and Innovations in Device Applications XV
EditorsShizhuo Yin, Ruyan Guo
ISBN (Electronic)9781510644908
Publication statusPublished - 2021
EventPhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 2021 - San Diego, United States
Duration: 2021 Aug 12021 Aug 5

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferencePhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 2021
Country/TerritoryUnited States
CitySan Diego


  • Luminescent solar concentrator
  • Nanocolloid
  • Nanocomposite
  • Nanophotonics
  • Rare earth phosphor
  • Solar spectrum down-converters
  • Spectral downshifting

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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