@inproceedings{0a81a828048c436c8e36f3c3e555c356,
title = "Quantum cutting organic-inorganic nanocomposites",
abstract = "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.",
keywords = "Luminescent solar concentrator, Nanocolloid, Nanocomposite, Nanophotonics, Rare earth phosphor, Solar spectrum down-converters, Spectral downshifting",
author = "Darwish, {Abdalla M.} and Sarkisov, {Sergey S.} and Simeon Wilson and Eboni Collins and Patel, {Darayas N.} and Paolo Mele and Brent Koplitz",
note = "Funding Information: Dillard team appreciates the financial support from US Air Force Office of Scientific Research Grant FA9550-18-1-0364 AFOSR, Army Research Office Grant No W911-NF-19-1-0451, and the partial support from Dillard University Minority Health and Health Disparity Research Center MHHDRC. Dr. Patel{\textquoteright}s research was sponsored by the Army Research Office and was accomplished under Grant Number W911NF-18-1-0446, instrumentation Grant Number W911NF1910506 and UNCF, Henry C. McBay Research Fellowship 2019. The views and conclusions contained in this document are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the Army Research Office or the U.S. Government. The U.S. Government is authorized to reproduce and distribute reprints for Government purposes notwithstanding any copyright notation herein. Publisher Copyright: {\textcopyright} 2021 SPIE.; Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XV 2021 ; Conference date: 01-08-2021 Through 05-08-2021",
year = "2021",
doi = "10.1117/12.2594612",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Shizhuo Yin and Ruyan Guo",
booktitle = "Photonic Fiber and Crystal Devices",
}