Effect of nanocrystalline domains in photovoltaic devices with benzodithiophene-based donor-acceptor copolymers
We have investigated the effects of thin-film morphology on the photovolatic performance for a series of donor-acceptor copolymers based on benzodithiophene donor and benzothiadiazole acceptor units. Photovoltaic devices incorporating polymer:fullerene blends show highest efficiencies (up to 6%) for those polymers exhibiting the least degree of crystallinity in X-ray diffraction patterns and a corresponding lowest surface roughness in thin films. We find that the existence of such crystalline...[Show more]
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|Source:||Journal of Physical Chemistry C|
|01_Menelaou_Effect_of_nanocrystalline_2014.pdf||4.43 MB||Adobe PDF||Request a copy|
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