Understanding charge transfer in carbon nanotube-fullerene bulk heterojunctions.
نویسندگان
چکیده
Semiconducting single-walled carbon nanotube/fullerene bulk heterojunctions exhibit unique optoelectronic properties highly suitable for flexible, efficient, and robust photovoltaics and photodetectors. We investigate charge-transfer dynamics in inverted devices featuring a polyethylenimine-coated ZnO nanowire array infiltrated with these blends and find that trap-assisted recombination dominates transport within the blend and at the active layer/nanowire interface. We find that electrode modifiers suppress this recombination, leading to high performance.
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عنوان ژورنال:
- ACS applied materials & interfaces
دوره 7 13 شماره
صفحات -
تاریخ انتشار 2015