Chemical doping of an electron transporter results in the formation of a radical anion containing semiconductor which showed high electron mobility (13 cm(2) V(-1) s(-1)) at low operating voltage (1 V).

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We have designed and synthesized two new novel molecules named TBT and PBT for the fabrication of nondoped light-emitting electrochemical cells (LECs). This is for the first time we are reporting red-emitting LECs with nondoped SMs in the history of LECs. Along with excellent thermal stability, the luminogens process better photophysical properties. The fabricated devices produced hyper red color emission with Commission International de I'Eclairage (CIE) coordinates (0.69, 0.30) and (0.73, 0.27) with electroluminescent peaks at 622 and 663 nm for PBT and TBT, respectively. The fabricated devices showed brightnesses of 1955 and 1393 cd/m 2 , current efficiencies 4.59 and 3.09 cd/A, and power efficiencies of 2.77 and 3.81 lm/W for PBT and TBT, respectively.

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Disordered meso-macro porous Cu-Ce-Al2O3 nanocomposite (gamma-Al(2-x)M(x)O3 +/- y, M = Cu and or Ce) with different compositions has been synthesized. In situ templated sol-gel method has been adopted with simple EDTA ethylenediamine tetra aceticacid and ethylenediamine molecules to prepare gamma-Al(2-x)M(x)O3 +/- y, (M = Cu and or Ce). Above meso-macro porous materials were characterized by structural, spectroscopy, microscopy and textural techniques. Detailed characterization indicates that Cu2+ ions are introduced into the ceria and alumina lattice positions. Nano composite nature of the gamma-Al(2-x)M(x)O3 +/- y has been confirmed by detailed microscopy investigations. Catalytic activity of the above nanocomposite materials have been screened for environmentally important CO oxidation reaction. 30% Ce-60% Al and 10% Cu containing material shows the best activity among other meso-macroporous material with (50%) 100% CO oxidation at (107 degrees C) 145 degrees C.