@article{c2618d90868944d4bfebdfa87b68964b,
title = "Nanocolloid simulators of luminescent solar concentrator photovoltaic windows",
abstract = "Transparent luminescent solar concentrator (LSC) windows with edge-attached photovoltaic (PV) cells have the potential for improving building efficiency without compromising aesthetics and comfort. Optimization of such windows requires an inexpensive simulator for experimenting with various designs. We report, for the first time to the best of our knowledge, the simulator of a transparent LSC window in the form of a plastic container filled with a colloid of photoluminescent nanoparticles (NPs) in an organic solvent (1-propanol). The exemplary NPs were produced by ball milling of the powder of rare earth (RE)-doped phosphor NaYF4:Yb3+,Er3+ synthesized by the wet method. The NPs converted the ultraviolet (UV) solar spectrum into visible/near infrared (NIR) via spectral down-shifting and down-conversion (quantum cutting). With a photoluminescence quantum yield (PLQY) of the phosphor <0.4%, the LSC at a nanocolloid concentration of ∼0.1 g solids per 100 mL liquids demonstrated a power conversion efficiency of 0.34% and a power concentration ratio of ∼0.022 comparable to the LSCs with RE-doped NPs with 200 times greater PLQY. At the same time, the 3 cm thick LSC window simulator had ∼90% transmittance to the sunlight. The content and concentration of the nanocolloid could be easily modified to optimize the LSC window performance without a costly window making process.",
keywords = "energy-efficient buildings, green power, quantum cutting, rare-earth-doped compounds, renewable energy, solar power, spectral down-conversion, spectral down-shifting",
author = "Darwish, {Abdalla M.} and Sarkisov, {Sergey S.} and Patel, {Darayas N.} and Paolo Mele and Giovanna Latronico and Simeon Wilson and Kyu Cho and Anit Giri and Brent Koplitz and David Hui",
note = "Funding Information: Funding information: Dillard team appreciates the financial support from the US Air Force Office of Scientific Research Grant FA9550-18-1-0364 AFOSR and Army Research Office Grant No W911-NF-19-1-0451 and the partial support from DU Minority Health and Health Disparity Research Center MHHDRC. Also, Dr Patel{\textquoteright}s research was sponsored by the Army Research Office and was accomplished under Grant Number W911NF-18-1-0446, UNCF, Henry C. McBay Research Fellowship 2019, and NASA Grant 80NSSC21K1882. 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 Air Force Office of Scientific Research (AFOSR) or the Army Research Office (ARO) 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} 2022 Abdalla M. Darwish et al., published by De Gruyter.",
year = "2022",
month = jan,
day = "1",
doi = "10.1515/ntrev-2022-0064",
language = "English",
volume = "11",
pages = "1167--1180",
journal = "Nanotechnology Reviews",
issn = "2191-9089",
publisher = "Walter de Gruyter GmbH",
number = "1",
}