Blend composition study of poly(3,3‴-didodecylquaterthiophene)/[6,6]-phenyl C61 butyric acid methyl ester solution processed organic solar cells.

Autor: Yuen, Avery P., Preston, John S., Hor, Ah-Mee, Klenkler, Richard, Macabebe, Erees Queen B., Ernest van Dyk, E., Loutfy, Rafik O.
Předmět:
Zdroj: Journal of Applied Physics; Jan2009, Vol. 105 Issue 1, p016105, 3p, 2 Diagrams, 1 Chart, 2 Graphs
Abstrakt: Photovoltaic devices made from blends of poly(3,3-didodecylquaterthiophene) (PQT-12) and [6,6]-phenyl C61 butyric acid methyl ester have been fabricated and characterized. By varying the polymer loading in the blend, an optimal power conversion efficiency (PCE) of 0.70% has been achieved for a blend consisting of 15 wt % PQT-12, which is an order of magnitude higher than the PCE for a 50 wt % blend. The apparent reason for the large difference is the fact that blends with higher PQT-12 loading are transport limited, with much larger hole-to-electron mobility ratios. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index