a
SKKU Advanced Institute of Nanotechnology (SAINT) and Center for Human Interface Nano Technology (HINT), Department of Chemical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea
E-mail: jhcho94@skku.edu
;
Tel: +82-31-299-4165
b
Department of Organic Materials and Fiber Engineering, Soongsil University, Seoul 156-743, Republic of Korea
c
Future Convergence Research Division, Korea Institute of Science and Technology, Seoul 136-791, Republic of Korea
d
Electronic Materials and Device Research Center, Korea Electronics Technology Institute, Gyeonggi-do 463-816, Republic of Korea
E-mail: hslim@keti.re.kr
;
Tel: +82-31-789-7165