Abstract
Luminescent solar concentrators (LSCs) have been widely studied for their potential application as building-integrated photovoltaics (BIPV). While numerous efforts have been made to improve the performance, the photothermal (PT) properties of LSCs are rarely investigated. In this report, we studied the PT properties of an LSC with a power conversion efficiency (PCE) of 3.27% and a concentration ratio of 1.42. The results showed that the total PT power of the LSC was 13.2 W, and the heat was concentrated on the edge of the luminescent waveguide with a high heat power density of over 200 W m−2.
Highlights
The results indicated that the heat concentrated on the edge of the luminescent waveguide, suggesting that Luminescent solar concentrators (LSCs) could be applied as PT energy concentrators
We first characterized the spectroscopic properties of DCJTB in the LSC and the PV
photoluminescence quantum yield (PLQY) was defined as the ratio between the number of emitted photons (Nem ) and the number of absorbed photons (Nabs ), which the results for the PLQY of DCJTB in the LSC
Summary
The practical integration of conventional solar panels with architectures suc buildings and other physical structures remains challengeable due to the design li tions of conventional solar panels such as shape, color, and transparency [1,2,3]. The research focus on LSCs has mainly been on improving the photovoltaic (PV) performance of the devices, the power conversion efficiency (PCE) [13,14,15], through developing novel luminophores [16,17,18] and optical techniques [19,20,21]. These approaches mainly focused on improving the photon collecting and transporting efficiencies of the LSCs, while little attention was paid to making use of the photon energy loss. This study would guide the design of novel LSCs that include PT energy utilization
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