TY - JOUR
T1 - Synthesis and characterizations of conjugated copolymers containing benzo[f]isoindole-1,3-dione and diketopyrrolopyrrole units
AU - Li, Duo
AU - Qian, Gang
AU - Wang, Zhi Yuan
PY - 2013/10/4
Y1 - 2013/10/4
N2 - A weak electron acceptor, 4,9-bis(5-bromothiophen-2-yl)-2-(2-ethylhexyl)- benzo[f]isoindole-1,3-dione (BIDO) was designed and synthesized. Polymer P1 derived from BIDO and 9,9-dioctylfluorene-2,7-diboronic acid bis(1,3-propanediol) ester by Suzuki cross-coupling reaction has a band gap of 2.41 eV. To expand the absorption range, a different amount of BIDO was copolymerized with a diketopyrrolopyrrole monomer to produce a series of copolymers Pa-c. The optical properties, electrochemical behavior, and energy levels of these four copolymers were investigated. The photovoltaic properties copolymers Pa-c were studied. A photovoltaic device containing Pc and [70]PCBM with a ratio of 1:2 had a power conversion efficiency of 1.17%.
AB - A weak electron acceptor, 4,9-bis(5-bromothiophen-2-yl)-2-(2-ethylhexyl)- benzo[f]isoindole-1,3-dione (BIDO) was designed and synthesized. Polymer P1 derived from BIDO and 9,9-dioctylfluorene-2,7-diboronic acid bis(1,3-propanediol) ester by Suzuki cross-coupling reaction has a band gap of 2.41 eV. To expand the absorption range, a different amount of BIDO was copolymerized with a diketopyrrolopyrrole monomer to produce a series of copolymers Pa-c. The optical properties, electrochemical behavior, and energy levels of these four copolymers were investigated. The photovoltaic properties copolymers Pa-c were studied. A photovoltaic device containing Pc and [70]PCBM with a ratio of 1:2 had a power conversion efficiency of 1.17%.
KW - Conjugated copolymer
KW - Donor-acceptor
KW - Organic solar cells
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U2 - 10.1016/j.polymer.2013.07.049
DO - 10.1016/j.polymer.2013.07.049
M3 - Article
AN - SCOPUS:84885022183
SN - 0032-3861
VL - 54
SP - 5543
EP - 5552
JO - Polymer
JF - Polymer
IS - 21
ER -
