Donor-acceptor polymers based on multi-fused heptacyclic structures: synthesis, characterization and photovoltaic applications.
We report here two novel 2,7-fluorene- and 2,7-carbazole-based conjugated polymers PFDCTBT and PCDCTBT containing ladder-type heptacyclic structures with forced planarity. PCDTBT shows excellent solubility, low band gap and high hole mobility, leading to a power conversion efficiency of 3.7%.
Wu
Jhong-Sian
JS
Department of Applied Chemistry, National Chiao Tung University, 1001 Ta Hsueh Road, Hsin-Chu, 30010 Taiwan.
Cheng
Yen-Ju
YJ
Dubosc
Martin
M
Hsieh
Chao-Hsiang
CH
Chang
Chin-Yen
CY
Hsu
Chain-Shu
CS
D002227:Carbazoles / Q000737:chemistry; D011211:Electric Power Supplies; D005449:Fluorenes / Q000737:chemistry; D006576:Heterocyclic Compounds, 4 or More Rings / Q000737:chemistry*; D015394:Molecular Structure; D010777:Photochemistry; D011108:Polymers / Q000138:chemical synthesis* / Q000737:chemistry*; D012995:Solubility
D002227:Carbazoles; D005449:Fluorenes; D006576:Heterocyclic Compounds, 4 or More Rings; D011108:Polymers