Kihwan Kim

Sangyeob Lee^1,2, 

Kyung Soo Cho², 

Soomin Song³, 

Kihwan Kim^3,4, 

Young-Joo Eo^3,4, 

Jae Ho Yun^3,4, 

Jihye Gwak^3,4, 

Choong-Heui Chung^1,2 

¹Department of Materials Science and Engineering, Hanbat National University, 

²Department of Materials and Manufacturing Engineering, Hanbat National University, 

³Photovoltaics Laboratory, Korea Institute of Energy Research, 

⁴Renewable Energy Engineering, University of Science and Technology, Daejeon