Organic-inorganic hybrid materials promise both the superior carrier mobility of inorganic semiconductors and the processability of organic materials. A thin-film field-effect transistor having an organic-inorganic hybrid material as the semiconducting channel was demonstrated. Hybrids based on the perovskite structure crystallize from solution to form oriented molecular-scale composites of alternating organic and inorganic sheets. Spin-coated thin films of the semiconducting perovskite (C(6)H(5)C(2)H(4)NH(3))(2)SnI(4) form the conducting channel, with field-effect mobilities of 0.6 square centimeters per volt-second and current modulation greater than 10(4). Molecular engineering of the organic and inorganic components of the hybrids is expected to further improve device performance for low-cost thin-film transistors.
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"The halide perovskite (CH 3 NH 3 PbX 3 , X = Cl, Br and I) solar cells (PSCs) have attracted considerable attention due to their great advantages, for example, direct band gap, large absorption coefficient , high carrier mobility    . These merits accelerate the rapid development of PSC devices with the power conversion efficiencies (PCEs) increasing from 3.8% to over 20%       . "
"In order to meet the above challenges, many research groups are working towards the development of a low cost solid state methyl ammonium lead iodide (CH 3 NH 3 PbI 3 ) perovskite based solar cells          . Presently, these solar cells have reached a conversion efficiency of 16%  and establishing itself as a cheap alternative to conventional silicon solar cells due to its tunable band gap, high absorption coefficient, high carrier mobility and good stability   . "
[Show abstract][Hide abstract] ABSTRACT: A solid-state mesoporous titanium dioxide (mTiO2) layer based hetero-junction solar cell, employing nanoparticles (NPs) of methyl ammonium lead iodide perovskite (CH3NH3PbI3) as light harvesters has been studied. The optimum performance parameters of CH3NH3PbI3 are observed as a function of sintering temperature and confirmed by X-ray diffraction analysis and UV-Vis spectrophotometry. A solid-state solar cell with the sandwich structure of mTiO2/CH3NH3PbI3/Graphite paste showed a power conversion efficiency of 1.11% tested under standard Air Mass 1.5 Global (1000 Wm-2, AM1.5G) solar spectrum. Two-diode model is used to explore the performance limiting factors of the developed solid-state perovskite solar cell.
Solar Energy Materials and Solar Cells 10/2014; · 5.34 Impact Factor
"Polymer/inorganic hybrids have attracted much attention due to their potential applications in many areas, such as thin-film field-effect transistors and solar cells. They provide better electrical properties due to the direct interfacial interaction of polymers with inorganic materials where the polymers act as donors and inorganic parts as acceptors  . "
[Show abstract][Hide abstract] ABSTRACT: Polyaniline/TiO2 hybrid nanoplates were synthesized via a sol–gel chemical method. We added TiO2 nanocrystallites of 3–5 nm in diameter to the chemical polymerization of aniline. The loading ratio of TiO2 nanocrystallites to polyaniline altered the morphology of the hybrids from plate-like grains to aggregates. The cyclic voltammetry on the obtained hybrid material revealed that the plate-like structure was more advantageous for the electrochemical stability. The chemical bonding established between polyaniline and TiO2, confirmed by Fourier transformed infrared spectroscopy, is likely to be responsible for the enhanced chemical stability. âº Polyaniline/TiO2 hybrid nanoplates are synthesized via a sol–gel chemical method. âº The morphology of hybrids changes from plate like grains to aggregates. âº The strong interfacial interaction between polyaniline and TiO2 nanocrystallites is confirmed. âº The strong interaction results in better electrochemical stability.
The Chemical Engineering Journal 06/2012; 192:262. DOI:10.1016/j.cej.2012.04.004