TY - JOUR
T1 - Two-dimensional π-conjugated molecules based-on 2,6,9,10-tetra(prop-1- yn-1-yl)anthracene and their application to solution-processed photovoltaic cells
AU - Shin, Jicheol
AU - Kang, Nam Su
AU - Lee, Tae Wan
AU - Cho, Min Ju
AU - Hong, Jae Min
AU - Ju, Byeong Kwon
AU - Choi, Dong Hoon
N1 - Funding Information:
This research was supported by National Research Foundation of Korea ( NRF2012R1A2A1A01008797 ) and by Key Research Institute Program through the NRF funded by the Ministry of Education, Science and Technology ( NRF20120005860 ). We are grateful to Pohang Accelerator Laboratory (Pohang, Korea) for allowing us to conduct the GI-XRD measurements.
PY - 2014/7
Y1 - 2014/7
N2 - Novel two-dimensional π-conjugated molecules, i.e., 5′, 5″′-((9,10-bis((4-hexylphenyl)ethynyl)anthracene-2,6-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (2,6-HBT) and 5′,5″′-((2,6-bis((4-hexylphenyl)ethynyl)anthracene-9,10-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (9,10-THB) were successfully synthesized and utilized as highly soluble p-type organic semiconductors for organic thin film transistors (TFTs) and solar cells. From the TFTs, the high hole mobility of the pristine film of 9,10-THB was measured to be 0.07 cm2 V-1 s-1 (Ion/off = 106-107), which is mainly attributed to slip-stacked charge-transport behavior in J-aggregation-induced crystallites. Further, a solution-processed solar cell made of 9,10-THB and PC61BM exhibited very promising and reproducible power conversion efficiencies of 3.30% and 2.53% with composition 1:1 and 1:2 w/w ratio, respectively.
AB - Novel two-dimensional π-conjugated molecules, i.e., 5′, 5″′-((9,10-bis((4-hexylphenyl)ethynyl)anthracene-2,6-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (2,6-HBT) and 5′,5″′-((2,6-bis((4-hexylphenyl)ethynyl)anthracene-9,10-diyl) bis(ethyne-2,1-diyl))bis(5-hexyl-2,2′-bithiophene) (9,10-THB) were successfully synthesized and utilized as highly soluble p-type organic semiconductors for organic thin film transistors (TFTs) and solar cells. From the TFTs, the high hole mobility of the pristine film of 9,10-THB was measured to be 0.07 cm2 V-1 s-1 (Ion/off = 106-107), which is mainly attributed to slip-stacked charge-transport behavior in J-aggregation-induced crystallites. Further, a solution-processed solar cell made of 9,10-THB and PC61BM exhibited very promising and reproducible power conversion efficiencies of 3.30% and 2.53% with composition 1:1 and 1:2 w/w ratio, respectively.
KW - Bulk heterojunction
KW - Organic semiconductor
KW - Photovoltaic cell
KW - Substitution position
KW - Tetra(prop-1-yn-1-yl)anthracene
KW - Thin film transistor
UR - http://www.scopus.com/inward/record.url?scp=84900028112&partnerID=8YFLogxK
U2 - 10.1016/j.orgel.2014.04.021
DO - 10.1016/j.orgel.2014.04.021
M3 - Article
AN - SCOPUS:84900028112
VL - 15
SP - 1521
EP - 1530
JO - Organic Electronics: physics, materials, applications
JF - Organic Electronics: physics, materials, applications
SN - 1566-1199
IS - 7
ER -
