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THE PHOTOLUMINESCENT LAYERS BASED ON ZnO NANOPARTICLES AS RADIATION CONVERTERS IN PHOTOVOLTAIC APPLICATIONS

Date added: 2018-10-01
Type: Article

Author / authors

Cezary Bazdyga

Cezary Bazdyga

Technology

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Przemysław Czarnecki

Przemysław Czarnecki

Technology

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Piotr Kraska

Piotr Kraska

Technology

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Paul Lewicki

Paul Lewicki

Technology

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Maciej Sibiński

Maciej Sibiński

Technology

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Aleksandra Sosna-Głębska

Aleksandra Sosna-Głębska

Technology

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Natalia Szczecińska

Natalia Szczecińska

Technology

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Gabriela Wiosna-Sałyga

Gabriela Wiosna-Sałyga

Technology

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Katarzyna Znajdek

Katarzyna Znajdek

Technology

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Abstract

The mismatch between solar cell response and solar spectrum is one of the biggest challenges to achieve high
efficiency in photovoltaic cells. There are a few different approaches to minimise this concern. One of them is
the radiation conversion which may be due to three different processes, namely up-conversion, downconversion
and down-shifting. In this paper the down-conversion process of zinc oxide nanoparticles (ZnO NPs)
and layers with ZnO NPs in polymer (poly (methyl methacrylate)) (PMMA) matrix will be analysed. ZnO NPs are
prone to act as down-converting or down-shifting agents, which absorb the UV radiation, which is not absorbed
by the solar cell, and then re-emit light in the visible range, which is suited to the photovoltaic cell sensitivity.
Herein, the photoluminescence and optical transmittance of ZnO NPs and layers based on ZnO NPs will be
presented. These parameters have a large influence on the potential application of these layers in photovoltaic
structures for increased efficiency. The conversion layers have to fulfil the following conditions: have good
optical transmittance in the visible range and high luminescence efficiency in converting UV radiation into
visible. The paper focuses on finding the balance between these parameters.

Keywords / Tags

Key words: down-conversion layers, down-shifting layers, photoluminescence nanoparticles, solar cell efficiency, zinc oxide nanoparticles, photoluminescence layers

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