Imperial College London

DrHyojungCha

Faculty of Natural SciencesDepartment of Chemistry

Research Associate
 
 
 
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Contact

 

h.cha

 
 
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Location

 

G22Molecular Sciences Research HubWhite City Campus

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Summary

 

Publications

Citation

BibTex format

@article{Lee:2014:10.1007/s13233-014-2068-z,
author = {Lee, GB and Kim, R and Cha, HJ and Park, CE and Kim, JH and Kim, YH},
doi = {10.1007/s13233-014-2068-z},
journal = {Macromolecular Research},
pages = {569--573},
title = {New donor-acceptor copolymer containing dialkoxy naphthalene and carbonylated thieno[3,4-b]thiophene for OTFT and OPV},
url = {http://dx.doi.org/10.1007/s13233-014-2068-z},
volume = {22},
year = {2014}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - A new copolymer (PONTET), composed of dialkoxy napthalene as donor and a carbonylated thieno [3,4-b]thiophene group as an acceptor, was obtained by Suzuki coupling polymerization. The number average molecular weight (M n ) of PONTET is 6.4 kg mol-1 with a polydispersity index of 1.20, determined by gel permeation chromatography using chloroform. PONTET showed broad absorption with a maximum at 534 nm in solution and 618 nm in a thin film, respectively. The hole mobility of PONTET was 1.5×10 -3 cm2/Vs and the I on /I off ratio was 7.7×104. The maximum power conversion efficiency of a PONTET:PC70BM (1:4)-based solar cell reached 1.3% with an open circuit voltage (V oc ) of 0.56 V, a short circuit current density (J sc ) of 5.6 mA/cm2, and a fill factor (FF) of 41.3%.[Figure not available: see fulltext.] © 2014 The Polymer Society of Korea and Springer Sciene+Business Media Dordrecht.
AU - Lee,GB
AU - Kim,R
AU - Cha,HJ
AU - Park,CE
AU - Kim,JH
AU - Kim,YH
DO - 10.1007/s13233-014-2068-z
EP - 573
PY - 2014///
SN - 1598-5032
SP - 569
TI - New donor-acceptor copolymer containing dialkoxy naphthalene and carbonylated thieno[3,4-b]thiophene for OTFT and OPV
T2 - Macromolecular Research
UR - http://dx.doi.org/10.1007/s13233-014-2068-z
VL - 22
ER -