Enhanced photovoltaic response in hydrogen-bonded all-organic devices.
Straightforward synthetic methodologies are reported for the functionalization of oligothiophenes with hydrogen-bonding motifs. Codeposition from a solution of symmetric melamine-terminated electron-donor oligomers with a complementary barbiturate-labeled electron-acceptor fullerene resulted in homogeneous films. Incorporation into photovoltaic devices gave a 2.5-fold enhancement in light energy to electrical energy conversion when compared to analogous systems with the non-hydrogen-bonding parent C(60). [reaction: see text]
Huang
Chih-Hao
CH
LCOO, CNRS UMR 5802, and LACReM, Centre de Recherche en Chimie Moléculaire, Université Bordeaux I, 33405 Talence, France.
McClenaghan
Nathan D
ND
Kuhn
Alexander
A
Hofstraat
Johannes W
JW
Bassani
Dario M
DM