ORGANIC PHOTOVOLTAICS: FROM SYNTHESIS TO SOLAR CELL CONSTRUCTION

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ORGANIC PHOTOVOLTAICS: FROM SYNTHESIS TO SOLAR CELL CONSTRUCTION

Journal Title: Proceedings of Electrotechnical Institute Prace Instytutu Elektrotechniki - Year 2012, Vol 59, Issue 259

Abstract

In this work based on the literature and own research different kinds of organic solar cells are presented. Research works concerning the development of organic photovoltaics are at present in three main directions: (i) the synthesis of new polymers and small compounds as the active layer of the solar cells, (ii) the modification of the architecture of the solar cells and (iii) perfecting of methods of the production of each layers in the solar cells. IEL Wrocław (the Lab of New Technologies) specializes in works over organic photovoltaics with both bilayers and bulk heterojunction, BHJ solar cells. Led are also researches over the optimization of the structure of organic materials including small- and high-molecular compounds in organic photovoltaics. In the present work the active layer of investigated solar cells consisted of the donor (poly(3-hexylthiophene-2,5-diyl), P3HT or polyazomethines) and the acceptor material ([6,6]-phenyl-C61-butyric acid methyl ester, PCBM). Organic photovoltaic devices with the configuration of ITO/PEDOT:PSS/P3HT:PCBM and reference solar cells were investigated under an illumination of 100 mW/cm2 (xenon lamp) with an AM1.5G by applied Solartron the Model 1287A potentiostat/the galvanostat. One showed the influence of the chemical structure of the polymers and the architecture of the solar cells on the value of photovoltaic parameters i.e. the power conversion efficiency (PCE), the fill factor (FF) or else the open circuit voltage (Voc) and the short circuit current (Jsc). The highest value of the PCE, which till now one received in IEL Wrocław, one qualified on level 2.4% for the BHJ polymer solar cell. The construction of the solar cells was performed conditioned of laboratory in the air atmosphere.

Authors and Affiliations

Agnieszka IWAN, Marcin PALEWICZ

Keywords

organic solar cells photovoltaics

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