1. Institute of Optoelectronic Display, National & Local United Engineering Lab of Flat Panel Display Technology; Fuzhou University; Fuzhou 350002 People's Republic of China
2. College of Information Science and Engineering, Fujian University of Technology; Fuzhou 350108 People's Republic of China
3. Biology & Soft Matter Division; Neutron Science Directorate, Oak Ridge National Lab; Oak Ridge Tennessee 37831