Xu, Z;
Portnoi, M;
Papakonstantinou, I;
(2023)
Micro-cone arrays enhance outcoupling efficiency in horticulture luminescent solar concentrators.
Optics Letters
, 48
(1)
pp. 183-186.
10.1364/OL.478206.
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Abstract
Luminescent solar concentrators (LSCs) have shown the ability to realize spectral conversion, which could tailor the solar spectrum to better match photosynthesis requirements. However, conventional LSCs are designed to trap, rather than extract, spectrally converted light. Here, we propose an effective method for improving outcoupling efficiency based on protruded and extruded micro-cone arrays patterned on the bottom surface of LSCs. Using Monte Carlo ray tracing, we estimate a maximum external quantum efficiency (EQE) of 37.73% for our horticulture LSC (HLSC), corresponding to 53.78% improvement relative to conventional, planar LSCs. Additionally, structured HLSCs provide diffuse light, which is beneficial for plant growth. Our micro-patterned surfaces provide a solution to light trapping in LSCs and a foundation for the practical application of HLSCs.
| Type: | Article |
|---|---|
| Title: | Micro-cone arrays enhance outcoupling efficiency in horticulture luminescent solar concentrators |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1364/OL.478206 |
| Publisher version: | https://doi.org/10.1364/OL.478206 |
| Language: | English |
| Additional information: | Published by Optica Publishing Group under the terms of the Creative Commons Attribution 4.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. |
| Keywords: | Horticulture, Luminescence, Monte Carlo Method, Retinal Cone Photoreceptor Cells |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Electronic and Electrical Eng |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10162997 |
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