Development of nanostructured luminophor coating for broadening of solar cell absorption spectrum

A. A. Kryuchyn; Ie. V. Beliak

doi:10.1117/12.2060832

7 October 2014 Development of nanostructured luminophor coating for broadening of solar cell absorption spectrum

A. A. Kryuchyn, Ie. V. Beliak

Proceedings Volume 9178, Next Generation Technologies for Solar Energy Conversion V; 91780R (2014) https://doi.org/10.1117/12.2060832
Event: SPIE Solar Energy + Technology, 2014, San Diego, California, United States

Abstract

One of the major concerns in the area of high efficient solar cell production is a substantial shift between the solar radiation spectra and optical absorption spectra of a photoelectric transducer that significantly reduces solar cell efficiency. We propose a concept which based on coating of conventional and cheap photoelectric transducer with a luminophor that transmits longer wavelengths of the sunlight, absorbs shorter wavelengths and converts them into longer ones by the value of the Stocks shift. While photoluminescent light is not collimated and thus losses may reach up to 50% of converted light, it was also proposed to make micropattern formation at photoelectric transducer surface. We propose synthesizing of specific materials based on composite pyrazoline dyes with addition of polymethylmethacrylate, polystyrene and UV-laquers. It was revealed that synthesized luminophor coating are characterized by sufficiently enough Stocks shift (200-400 nm), high quantum yield (near 80%) and stability under circumstances of long term radiation. Further research demonstrated potential of the significant characteristic’s improvement by introducing of organic dye molecules in the white zeolite matrix with additional laser annealing at low intensity. Experimental results have shown that photoluminescent spectrum of pyrazoline dye didn’t change shape, bandwidth and amplitude for last 10 years. It was decided that obtained stability is being caused by porous matrix of white zeolite. Simulation of the solar cell functioning helped to understand physics of the process and simplify problem of microrelief and luminophor optimal parameters search.

Citation Download Citation

A. A. Kryuchyn and Ie. V. Beliak "Development of nanostructured luminophor coating for broadening of solar cell absorption spectrum", Proc. SPIE 9178, Next Generation Technologies for Solar Energy Conversion V, 91780R (7 October 2014); https://doi.org/10.1117/12.2060832

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KEYWORDS

Solar cells

Coating

Transducers

Absorption

Solar radiation

Solar energy

Silicon

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