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عنوان البحث(Papers / Research Title)


The effect of solution processing on the power conversion efficiency of P3HT-based organic solar cells


الناشر \ المحرر \ الكاتب (Author / Editor / Publisher)

 
براق يحيى كاظم السعدي

Citation Information


براق,يحيى,كاظم,السعدي ,The effect of solution processing on the power conversion efficiency of P3HT-based organic solar cells , Time 26/01/2018 20:35:08 : كلية العلوم

وصف الابستركت (Abstract)


P3HT:PCBM; Organic Solar Cells

الوصف الكامل (Full Abstract)

Chloroform, Chlorobenzene, 1, 2-Dichlorobenze and co-solvent Chlorobenzene with Chloroform (1:1) were used to investigate
the influence of the solvent on the morphology of P3HT:PCBM (with the ratio 1:1) as well as the photovoltaic properties of organic
solar cells based on this polymer blend. Using co-solvents leads to higher absorption intensity as compared to other studied solvents.
XRD measurements reveal improved crystallinity in P3HT films prepared by chloroform and chlorobenzene while large aggregates
appeared in films prepared using dichlorobenzene. Films produced using co-solvents show well-ordered structure and improved
crystallinity; these results were further confirmed by SEM images. The J(V) measurements show that a maximum PCE of 1.47% is
obtained in films produced using co-solvents. This was associated with significant improvement in current density (11.77 mA/cm2)
and a fill factor of 0.4 which was determined from the series and shunt resistances. Open circuit voltage has decreased in film
prepared by co-solvents (0.31 Volt), and improved significantly (0.54
Volt) in film prepared in chloroform.

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