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Studying of Perovskite Nanoparticles in PMMA Matrix Used as Light Converter for Silicon Solar Cell

Lipiński M., Socha R. P., Kędra A., Gawlińska K., Kulesza-Matlak G., Major Ł., Drabczyk K., Łaba K., Starowicz Z., Gwóźdź K., Góral A., Popko E.

Archives of Metallurgy and Materials

2017

Vol. 62, iss. 3

1733--1739

The nanoparticles of CH3NH3PbBr3 hybrid perovskites were synthesized. These perovskite nanoparticles we embedded in polymethyl methacrylate (PMMA) in order to obtain the composite, which we used as light converter for silicon solar cells. It was shown that the composite emit the light with the intensity maximum at about 527 nm when exited by a short wavelength (300÷450 nm) of light. The silicon solar cells were used to examine the effect of down-conversion (DC) process by perovskite nanoparticles embedded in PMMA. For experiments, two groups of monocrystalline silicon solar cells were used. The first one included the solar cells without surface texturization and antireflection coating. The second one included the commercial cells with surface texturization and antireflection coating. In every series of the cells one part of the cells were covered by composite (CH3NH3PbBr3 in PMMA) layer and second part of cells by pure PMMA for comparison. It was shown that External Quantum Efficiency EQE of the photovoltaic cells covered by composite (CH3NH3PbBr3 in PMMA) layer was improved in both group of the cells but unfortunately the Internal Quantum Efficiency was reduced. This reduction was caused by high absorption of the short wavelength light and reabsorption of the luminescence light. Therefore, the CH3NH3PbBr3 perovskite nanoparticles embedded in PMMA matrix were unable to increase silicon solar cell efficiency in the tested systems.

Teleinformatyczny system informacji zintegrowanej

Popko A., Popko E., Lenik K.

Rynek Energii

2005

nr 5

81-84

Przedstawiono informacje dotyczące eksploatacji systemu typu GIS wdrożonego w Lubelskim Przedsiębiorstwie Energetyki Cieplnej. Omówiono kluczowe kryteria procesu integracji eksploatowanych systemów informacyjnych wpływające na efektywność realizowanego procesu. Wdrożony teleinformatyczny system informacji zintegrowanej umożliwia w szczególności: realizację platformy wymiany informacji w organizacji, wsparcie strategicznych decyzji biznesowych, zarządzanie zasobami, optymalizację sprzedaży.

The article concentrates on the most significant information concerning exploitation process and data integration of GIS system in Lublin District Heating Company. The author describes main criterions that determine efficiency of realized process'. Teleinformatics system of integrated information particularly enables: realization of platform of exchange of information, support of strategic business decision, management stocks, optimization of sale.