Please use this identifier to cite or link to this item: http://dspace.dtu.ac.in:8080/jspui/handle/repository/15747
Title: FABRICATION, CHARACTERIZATION AND BUFFER LAYER MODIFICATION OF P3HT: PCBM BASED ORGANIC SOLAR CELLS
Authors: PARAKH, SONAL
Keywords: BUFFER LAYER MODIFICATION
ORGANIC SOLAR CELLS
OPVs
PCBM
Issue Date: Jul-2013
Series/Report no.: TD NO.1257-A;
Abstract: Concerns about Global Warming and diminishing fossil fuel reserves have accelerated the search for low cost sources of renewable energy. Organic photovoltaics (OPVs) could be one such source. This thesis took the first step towards that goal by developing a process to synthesize and characterize inverted and normal poly (3-hexylthiophene) (P3HT), [6,6]-phenyl-C61 butyric acid methyl ester (PC60BM) solar cells. Although detrimental to the stability of the cells, ambient synthesis replicated the conditions required for large-scale, industrial production. Performance and stability were evaluated for each type of OPV. The most efficient normal cell had a power conversion efficiency of 0.308 %, a fill factor of 32.8%, and a VOC of up to 0.557 V. The buffer layer used was replaced by new transition oxides (MoO3) due to the limitations faced by the traditional layers. Then, some new inverted structures were investigated with efficiencies as high as 1.71 %, with a fill factor of 58.2 % and a VOC of 0.606 V. The inverted cells were much more stable than the normal cells. Some cells with new polymers need optimization but they did give some promising results.
URI: http://dspace.dtu.ac.in:8080/jspui/handle/repository/15747
Appears in Collections:M.E./M.Tech. Applied Physics

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