1. Photovoltaic
Materials Unit, National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, Japan
2. Solar
Energy Research Institute (SERI), Universiti Kebangsaan Malaysia (UKM), Bangi 43600, Selangor Darul Ehsan, Malaysia
3. CRC,
Optometry Department, College of Applied Medical Sciences, King Saud University, Riyadh 11433, Saudi Arabia
4. Department
of Chemistry, Center for Macromolecular Science and Engineering, University of Florida, Gainesville, Florida 32611, United States
5. School
of Chemistry and Biochemistry and School of Materials Science and
Engineering, Center for Organic Photonics and Electronics, Georgia
Tech Polymer Network, Georgia Institute of Technology, Atlanta, Georgia 30332, United States