[1] Chonbuk Natl Univ, Profess Grad Sch Flexible & Printable Elect, Deokjin Dong 664-14, Jeonju Si 561756, Jeollabuk Do, South Korea
[2] Chonbuk Natl Univ, Polymer Mat Fus Res Ctr, Deokjin Dong 664-14, Jeonju Si 561756, Jeollabuk Do, South Korea
[3] Gwangju Inst Sci & Technol, Sch Mat Sci & Engn, Gwangju 500712, South Korea
[4] Korea Atom Energy Res Inst, Radiat Res Div Ind & Environm, Geumgu Gil 29, Jeongeup 580185, Jeollabuk Do, South Korea