Leveraging extraordinary optical properties of inorganic lead halide perovskites for photonic luminescent solar concentrators

Lindsey E. Parsons; Brendan Russ; Carissa N. Eisler

doi:10.1117/12.2677552

1 October 2023 Leveraging extraordinary optical properties of inorganic lead halide perovskites for photonic luminescent solar concentrators

Lindsey E. Parsons, Brendan Russ, Carissa N. Eisler

Author Affiliations +

Proceedings Volume 12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV; 1266004 (2023) https://doi.org/10.1117/12.2677552
Event: SPIE Organic Photonics + Electronics, 2023, San Diego, California, United States

Abstract

The photonic luminescent solar concentrator (LSC), a flat light-refocusing device, has been proposed as a solution to unlock low-cost, high efficiency solar modules because of its potential to achieve concentrations much higher than traditional lenses [1]. Further, because of the inherent wavelength selectivity of the structure, using multiple wavelength LSCs could finally enable spectrum-splitting designs wherein the broadband solar spectrum is demultiplexed onto multiple bandgap cells (multijunction cell), enabling efficiencies exceeding 50% [2]. Here, we explore how the unique surface sensitivity of perovskite nanocrystals can be exploited to significantly increase the light trapping in LSC designs. Inorganic lead halide perovskites (CsPbX₃(X=halide)) have exhibited remarkable optical properties that make them well suited for LSCs, such as high quantum yields [3]. Further, the transition dipole moment of perovskite nanocrystals (governs directional emission) is highly controllable based on local environment [4]. We show how using bilayers of perovskite nanoparticles can enhance directional emission of perovskites for use in LSCs. UV-vis spectroscopy quantifies spectral interaction of these layers and TEM imaging shows particle packing and alignment. Films are characterized via back focal plane (Fourier) imaging, which quantifies the angle-resolved light emission pattern. Preliminary results show that 270 nm thick films of CsPbBr3 cubes (emission = 515 nm) emit light randomly, while 270 nm thick films of CsPbB3 cubes on top of a layer of CsPbBr₃ nanoplates (emission = 450 nm) have a higher dipole angle (40°), favoring total internal reflection modes. This change in alignment results in a trapping improvement of 4% [5].

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Lindsey E. Parsons, Brendan Russ, and Carissa N. Eisler "Leveraging extraordinary optical properties of inorganic lead halide perovskites for photonic luminescent solar concentrators", Proc. SPIE 12660, Organic, Hybrid, and Perovskite Photovoltaics XXIV, 1266004 (1 October 2023); https://doi.org/10.1117/12.2677552

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