Z. Liu (Georgia Institute of Technology), X. He (University of Maryland, College Park), S. Xiong (Georgia Institute of Technology), J. Bai (Brookhaven National Laboratory), Y. Mo (University of Maryland Energy Research Center), S. Indris (IAM-ESS, Karlsruhe Institute of Technology), and H. Chen (Georgia Institute of Technology)

S. Kang, S. J. Yeom, and H. W. Lee (Ulsan National Institute of Science and Technology)

S. J. Yeom, C. M. Lee, S. Kang, J. Ryu, and H. W. Lee (Ulsan National Institute of Science and Technology)