Park Young | Frontier Research Laboratory, Samsung Institute of Advanced Technology, Yongin, Gyeonggi 446-712, Korea

Department Of Ceramic Engineering Yonsei University

Department Of Materials Science And Engineering Kwangju Institute Of Science And Technology (k-jjst)

Department Of Agricultural Bio-resources National Academy Of Agricultural Science Rural Development

Frontier Research Laboratory, Samsung Advanced Institute of Technology, Yongin, Gyeonggi 446-712, Republic of Korea

Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University, Seoul 133-791, Korea

Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University, Seoul 133-791, Korea

Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University, Seoul 133-791, Korea

Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University, Seoul 133-791, Korea

Department of Engineering Science, University of Oxford, Oxford, OX1 3PJ, U.K.

Novel Functional Materials and Device Laboratory, Department of Physics, Research Institute for Natural Science, Hanyang University