Ermias Libnedengel Tsege

Dong-Myeong Shin¹, 

Seok Hee Kang², 

Seongsu Kim³, 

Wanchul Seung³, 

Ermias Libnedengel Tsege¹, 

Sang-Woo Kim³, 

Hyung Kook Kim¹, 

Suck Won Hong², 

Yoon-Hwae Hwang¹ 

¹Department of Nanoenergy Engineering, BK21 Plus Nanoconvergence Technology Division, Pusan National University (PNU), Miryang, 

²Department of Cogno-Mechatronics Engineering, Pusan National University (PNU), Busan, 

³SKKU Advanced Institute of Nanotechnology (SAINT), Center for Human Interface Nanotechnology (HINT), SKKU-Samsung Graphene Center, Sungkyunkwan University (SKKU)