01849nas a2200313   4500008004100000022001400041245012200055210006900177260007100246300001200317490000600329520075600335653002901091653003501120653001901155653001701174653001501191653001501206653001701221100002001238700002101258700001901279700002101298700002201319700001901341700002301360700002501383856012701408       2016                        eng d  a1944-824400aHybrid perovskite quantum nanostructures synthesized by electrospray antisolvent-solvent extraction and intercalation0 aHybrid perovskite quantum nanostructures synthesized by electros  a1155 16TH ST, NW, WASHINGTON, DC 20036 USAbAMER CHEMICAL SOCcJAN  a854-8610 v83 a<p>Perovskites based on organometal lead halides have attracted great deal of scientific attention recently in the context of solar cells and optoelectronic devices due to their unique and tunable electronic and optical properties. Herein, we show that the use of electrospray technique in conjunction with the antisolventsolvent extraction leads to novel low-dimensional quantum structures (especially 2-D nanosheets) of CH3NH3PbI3- and CH3NH3PbBr3-based layered perovskites with unusual luminescence properties. We also show that the optical bandgaps and emission characteristics of these colloidal nanomaterials can be tuned over a broad range of visible spectral region by compositional tailoring of mixed-halide (I- and Br-based) perovskites.</p>10a2D nanostructure systems10aantisolvent-solvent extraction10abandgap tuning10aelectrospray10ananosheets10aperovskite10aquantum dots1 aNaphade, Rounak1 aNagane, Satyawan1 aShanker, Shiva1 aFernandes, Rohan1 aKothari, Dushyant1 aZhou, Yuanyuan1 aPadture, Nitin, P.1 aOgale, Satishchandra  uhttps://library.ncl.res.in/content/hybrid-perovskite-quantum-nanostructures-synthesized-electrospray-antisolvent-solvent-001693nas a2200181   4500008004100000245010200041210006900143260000800212300001400220490000600234520103100240100001901271700002301290700003001313700001901343700001901362856013001381       2017                        eng d00aColloidal nanocomposite of TiN and N-doped few-layer graphene for plasmonics and electrocatalysis0 aColloidal nanocomposite of TiN and Ndoped fewlayer graphene for   cOCT  a2251-22560 v23 a<p>A combination of high carrier density, high surface area, solution processability, and low cost is desired in a material for electrocatalytic applications, including H-2 evolution and a counter electrode of a solar cell. Also, plasmonic-based applications in biological systems can be derived from such material. In this regard, a colloidal nanocomposite of TiN and N-doped few-layer graphene (TiN NFG) is synthesized from molecular precursors. TiN nano crystals (NCs) provide free electrons for electrical conductivity and plasmonics, whereas NFG is responsible for charge transport, high surface area, and colloidal stability. Colloidal TiN NFG nano composites exhibit a localized surface plasmon resonance band at around 700 nm. Coatings of the nanocomposite form a counter electrode for efficient (8.9%) dye-sensitized solar cells. Furthermore, the nanocomposite acts as an efficient electrocatalyst for hydrogen evolution reaction, exhibiting an overpotential similar to 161 mV at a current density of 10 mA/cm(2).</p>1 aShanker, Shiva1 aMarkad, Ganesh, B.1 aJagadeeswararao, Metikoti1 aBansode, Umesh1 aNag, Angshuman  uhttps://library.ncl.res.in/content/colloidal-nanocomposite-tin-and-n-doped-few-layer-graphene-plasmonics-and-electrocatalysis