Thin-Film Luminescent Solar Concentrator Based on Intramolecular Charge Transfer Fluorophore and Effect of Polymer Matrix on Device Efficiency

Luminescent solar concentrators (LSCs) provide a transformative approach to integrating photovoltaics into a built environment. In this paper, we report thin-film LSCs composed of intramolecular charge transfer fluorophore (DACT-II) and discuss the effect of two polymers, polymethyl methacrylate (PM...

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Bibliographic Details
Published in:Polymers 2021-10, Vol.13 (21), p.3770
Main Authors: Mateen, Fahad, Lee, Namcheol, Lee, Sae Youn, Taj Ud Din, Syed, Yang, Woochul, Shahzad, Asif, Kaliamurthy, Ashok Kumar, Lee, Jae-Joon, Hong, Sung-Kyu
Format: Article
Language:English
Subjects:
Alternative energy sources
Charge transfer
Chromatography
Concentrators
Cooling
Efficiency
Energy conversion efficiency
Glass substrates
Nitrogen
Optical properties
Photovoltaic cells
Polymers
Polymethyl methacrylate
Quantum dots
Sodium
Thin films
Urban environments
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Summary:Luminescent solar concentrators (LSCs) provide a transformative approach to integrating photovoltaics into a built environment. In this paper, we report thin-film LSCs composed of intramolecular charge transfer fluorophore (DACT-II) and discuss the effect of two polymers, polymethyl methacrylate (PMMA), and poly (benzyl methacrylate) (PBzMA) on the performance of large-area LSCs. As observed experimentally, DACT-II with the charge-donating diphenylaminocarbazole and charge-accepting triphenyltriazine moieties shows a large Stokes shift and limited re-absorption losses in both polymers. Our results show that thin-film LSC (10 × 10 × 0.3 cm3) with optimized concentration (0.9 wt%) of DACT-II in PBzMA gives better performance than that in the PMMA matrix. In particular, optical conversion efficiency (ηopt) and power-conversion efficiency (ηPCE) of DACT-II/PBzMA LSC are 2.32% and 0.33%, respectively, almost 1.2 times higher than for DACT-II/PMMA LSC.
ISSN:2073-4360
2073-4360
DOI:10.3390/polym13213770