TY - JOUR
T1 - Synthesis and characterization of dithieno[3,2-b:2',3'-d]thiophene-based copolymers for polymer solar cells
AU - Badgujar, Sachin
AU - Bathula, Chinna
AU - Moon, Sang Jin
AU - Lee, Soo Hyung
AU - Lee, Sang Kyu
PY - 2014/8
Y1 - 2014/8
N2 - New dithieno[3,2-b:2',3'-d]thiophene (DTT)-based copolymers were designed and synthesized for use as donor materials in polymer solar cells (PSCs). The optical, electrochemical, and photovoltaic properties of the copolymers were investigated. The results indicate that the acceptor units in the copolymers influenced the band gap, electronic energy levels, and photovoltaic properties of the copolymers significantly. The band gaps of the copolymers were in the range 1.85-2.02 eV. Under optimized conditions, the DTT-based polymers showed power conversion efficiencies (PCEs) for the PSCs in the range 0.97-1.19% under AM 1.5 illumination (100 mW/cm2). Among the copolymers, P2, which contained a pyrrolo[3,4-f]isoindole-tetraone acceptor unit, showed a power conversion efficiency of 1.19% with a short circuit current of 4.18 mA/cm 2, open circuit voltage of 0.77 V, and a fill factor of 0.37, under AM 1.5 illumination (100 mW/cm2).
AB - New dithieno[3,2-b:2',3'-d]thiophene (DTT)-based copolymers were designed and synthesized for use as donor materials in polymer solar cells (PSCs). The optical, electrochemical, and photovoltaic properties of the copolymers were investigated. The results indicate that the acceptor units in the copolymers influenced the band gap, electronic energy levels, and photovoltaic properties of the copolymers significantly. The band gaps of the copolymers were in the range 1.85-2.02 eV. Under optimized conditions, the DTT-based polymers showed power conversion efficiencies (PCEs) for the PSCs in the range 0.97-1.19% under AM 1.5 illumination (100 mW/cm2). Among the copolymers, P2, which contained a pyrrolo[3,4-f]isoindole-tetraone acceptor unit, showed a power conversion efficiency of 1.19% with a short circuit current of 4.18 mA/cm 2, open circuit voltage of 0.77 V, and a fill factor of 0.37, under AM 1.5 illumination (100 mW/cm2).
KW - Conjugated polymers
KW - Dithienothiophene-based copolymers
KW - Polymer solar cells
UR - http://www.scopus.com/inward/record.url?scp=84906569564&partnerID=8YFLogxK
U2 - 10.1166/jnn.2014.8817
DO - 10.1166/jnn.2014.8817
M3 - Article
AN - SCOPUS:84906569564
SN - 1533-4880
VL - 14
SP - 6060
EP - 6064
JO - Journal of Nanoscience and Nanotechnology
JF - Journal of Nanoscience and Nanotechnology
IS - 8
ER -