1. Department of Chemistry, Assam University, Silchar-788011, Assam, India; Department of Physics, University of Colorado, Boulder, Colorado 80309, United States; National Renewable Energy Laboratory, 1617 Cole Boulevard, Golden, Colorado 80401, United States; Liquid Crystal Materials Research Center, University of Colorado, Boulder, Colorado, 80309, United States; and Renewable and Sustainable Energy Institute, University of Colorado, Boulder, Colorado 80309, United States