Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/144244
Title: HIGHLY-CONCENTRATED SUNLIGHT SEPARATION FOR WIDE-SPECTRUM SOLAR ENERGY HARVESTING
Authors: THIO SI KUAN
ORCID iD:   orcid.org/0000-0002-2896-5352
Keywords: solar spectrum splitting, sunlight separation, photovoltaic
Issue Date: 29-Mar-2018
Citation: THIO SI KUAN (2018-03-29). HIGHLY-CONCENTRATED SUNLIGHT SEPARATION FOR WIDE-SPECTRUM SOLAR ENERGY HARVESTING. ScholarBank@NUS Repository.
Abstract: The narrow spectral response (0.4 μm ≤ λ < 1.2 μm) of a crystalline (c-Si) cell has limited photons in the lower energy states from forming electron-hole pairs for electricity generation. Resultantly, the majority portion of AM1.5 spectrum (1.2 μm ≤ λ ≤ 2.5 μm) that cannot undergo PV conversion often contribute to thermal degradation of c-Si cells and waste heat. Furthermore, current technologies aiming to utilize broader solar spectrum ranges have either expensive fabrication processes or low solar concentration performances. This thesis introduces the dispersive optical system (DOS), designed with commercially available optical components, which separates incoming sunlight into highly concentrated VIS (1238x) and IR (1372x) energy bands. Following separation of VIS and IR onto corresponding solar receivers, the DOS widens the sun’s spectrum usage, by allowing effective PV conversion of c-Si cells and concurrently converting remaining solar irradiation into useful energy for a broad range of thermal applications.
URI: http://scholarbank.nus.edu.sg/handle/10635/144244
Appears in Collections:Master's Theses (Open)

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