N. Viriya-empikul1, P. Krasae2, W. Nualpaeng1, B. Yoosuk2, K. Faungnawakij1
1National Nanotechnology Center (NANOTEC), National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Pahonyothin Rd., Klong Laung, Pathumthani 12120, Thailand
2National Metal and Materials Technology Center (MTEC), National Science and Technology Development Agency, 114 Thailand Science Park, Pahonyothin Rd., Klong Laung, Pathumthani 12120, Thailand