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High‐Performance Near‐Infrared Harvesting Transparent Luminescent Solar Concentrators
Author(s) -
Yang Chenchen,
Moemeni Mehdi,
Bates Matthew,
Sheng Wei,
Borhan Babak,
Lunt Richard R.
Publication year - 2020
Publication title -
advanced optical materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.89
H-Index - 91
ISSN - 2195-1071
DOI - 10.1002/adom.201901536
Subject(s) - materials science , organic solar cell , optoelectronics , transparency (behavior) , transmittance , ultraviolet , photovoltaic system , luminescence , energy conversion efficiency , infrared , photovoltaics , optics , computer science , electrical engineering , computer security , composite material , engineering , polymer , physics
Transparent luminescent solar concentrators (TLSCs) selectively harvest ultraviolet and near‐infrared photons. Due to the absence of electrodes, busbars, and collection grids over the solar harvesting area, the device structure enables these devices to achieve the highest levels of transparency and aesthetics. Recently, CO i 8DFIC has been developed as a nonfullerene acceptor in organic photovoltaics with unprecedented performance. In this work, nonfullerene acceptors are introduced into TLSCs as the luminophores. The impact of CO i 8DFIC concentration on power conversion efficiency (PCE), aesthetic quality, and scalability is systematically studied. After device optimization, the CO i 8DFIC TLSCs are shown to achieve a PCE over 1.2% while the average visible transmittance exceeds 74% and color rendering index exceeds 80. This work reports the highest TLSC device efficiency at the highest visibly transparency and highlights that the photoluminescent properties of these emerging low bandgap organic molecules providing an encouraging path to higher TLSC performance.