Polyoxometalate Based Organic-Inorganic Nanocomposites

S. Shanmugam, B. Viswanathan and T.K. Varadarajan

Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India


The organic-inorganic nanocomposites were synthesized by sol-gel techniques. The constructed film renders photochromism, which can be tuned by choosing suitable polyoxometalates (POM). The molybdenum POMs show better photochromism than the tungsten POMs, which is well correlated with the first reduction potentials and band gap of the POM.