Imperial College London

DrHyojungCha

Faculty of Natural SciencesDepartment of Chemistry

Research Associate
 
 
 
//

Contact

 

h.cha

 
 
//

Location

 

G22Molecular Sciences Research HubWhite City Campus

//

Summary

 

Publications

Citation

BibTex format

@article{Kim:2015:10.1016/j.matchemphys.2014.12.035,
author = {Kim, MJ and An, TK and Kim, SO and Cha, H and Kim, HN and Xiofeng, T and Park, CE and Kim, YH},
doi = {10.1016/j.matchemphys.2014.12.035},
journal = {Materials Chemistry and Physics},
pages = {63--71},
title = {Molecular design and ordering effects of alkoxy aromatic donor in a DPP copolymer on OTFTs and OPVs},
url = {http://dx.doi.org/10.1016/j.matchemphys.2014.12.035},
volume = {153},
year = {2015}
}

RIS format (EndNote, RefMan)

TY  - JOUR
AB - © 2014 Elsevier B.V. All rights reserved. Two p-type polymers, PONDPP and PTADPP were synthesized by Suzuki coupling reaction to investigate the effect of alkoxy aromatic donor units in diketopyrrolopyrrole (DPP)-based copolymers on OTFTs and OPVs. PONDPP containing dialkoxynaphthalene exhibits excellent field-effect performances, with a hole mobility of 0.324 cm2/V while PTADPP containing dialkoxyanthracene exhibits mobility of 4.5 × 10-3 cm2/V at 200 °C annealing. Bulk heterojunction type polymer solar cells based on these polymers as the electron donor materials, with PC71BM as the acceptor, showed maximum power conversion efficiency (PCE) of 0.9% for PONDPP and 1.1% for PTADPP under AM 1.5 illumination. From photophysical and structural studies, we found that naphthalene unit was introduced to the DPP unit to enhance more the molecular ordering compared to anthracene unit.
AU - Kim,MJ
AU - An,TK
AU - Kim,SO
AU - Cha,H
AU - Kim,HN
AU - Xiofeng,T
AU - Park,CE
AU - Kim,YH
DO - 10.1016/j.matchemphys.2014.12.035
EP - 71
PY - 2015///
SN - 0254-0584
SP - 63
TI - Molecular design and ordering effects of alkoxy aromatic donor in a DPP copolymer on OTFTs and OPVs
T2 - Materials Chemistry and Physics
UR - http://dx.doi.org/10.1016/j.matchemphys.2014.12.035
VL - 153
ER -