1. Center for Polymers and Organic Solids, Department of Chemistry and Biochemistry; University of California; Santa Barbara CA 93106 United States
2. Center for Polymers and Organic Solids, Department of Physics; University of California; Santa Barbara CA 93106 United States
3. School of Chemistry and Center of Excellence for Innovation in Chemistry, Institute of Science; Suranaree University of Technology; Nakhon Ratchasima Thailand 30000