Photovoltaic performance of an ultrasmall band gap polymer.
A conjugated polymer (PBTTQ) that consists of alternating electron-rich bithiophene and electron-deficient thiadiazoloquinoxaline units was synthesized via Yamamoto polymerization with Ni(cod)(2) and provides a band gap of 0.94 eV. This represents one of the smallest band gaps obtained for a soluble conjugated polymer. When applied in a bulk heterojunction solar cell together with [84]PCBM as the electron acceptor, the polymer affords a response up to 1.3 microm.
Zoombelt
Arjan P
AP
Molecular Materials and Nanosystems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
Fonrodona
Marta
M
Wienk
Martijn M
MM
Sieval
Alexander B
AB
Hummelen
Jan C
JC
Janssen
René A J
RA