[PS-13-15] Electrical and Optical Properties of Co-doped and Undoped MoS2 Crystals ○C. C. Huang1, T. S. Ko1, D. Y. Lin1, Y. J. Ruan1, Y. S. Huang2 (1.National Univ. of Changhua Edu., 2.Taiwanl Univ. Sci. and Tech(Taiwan))