1. Optoelectronics
Convergence Research Center and Department of Materials Science and
Engineering, Chonnam National University, 300, Yongbong-Dong, Buk-Gu, Gwangju 500-757, South Korea
2. Department
of Physics and Astronomy and Wright Center for Photovoltaic Innovation
and Commercialization, University of Toledo, Toledo, Ohio 43606, United States
3. School
of Energy Engineering, Kyungpook National University, Daegu 41566, South Korea
4. Department
of Chemistry Education and Optoelectronics Convergence Research Center, Chonnam National University, 300, Yongbong-Dong, Buk-Gu, Gwangju 500-757, South Korea