The Columbia EFRC - Lenfest Center for Sustainable Energy ...
The Columbia EFRC - Lenfest Center for Sustainable Energy ...
The Columbia EFRC - Lenfest Center for Sustainable Energy ...
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Shape Complementary Molecular Photovoltaics.<br />
electrode 1<br />
n-type semiconductor<br />
p-type semiconductor<br />
electrode 2<br />
p-type n-type<br />
assembly<br />
shapecomplemenarity<br />
Interdigitated columns<br />
HBC/C60 bilayer devices<br />
show good functional<br />
per<strong>for</strong>mance!<br />
Voc=0.95 V, η= 5.7%<br />
(UV), > 1% (amb. solar)<br />
Voc 10x’s larger <strong>for</strong><br />
contorted- vs. flat- HBC<br />
devices (under UV light).<br />
Goal: ordered bulk<br />
heterojunction.<br />
Approach: exploit<br />
physical & electronic<br />
complementarity of C60 with contorted-HBC<br />
(hexabenzocoronene)
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