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Department of Chemistry
Indian Institute of Technology Roorkee
Uttarakhand-247667
Brief Statement of research contributions:
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Ultralong micro-belts of MAPbI3 show bright and stable fluorescence in solution. Luminescent perovskites have been synthesized through centrifugation of solution processed with ligand assisted reprecipitation technique (LARP). All the electron spectroscopic analysis are evidenced for stacking of PNC nanocrystals as bundles of self assembled micro-belts. Under an applied bias, exciton migration through long axis is feasible. This long micro-belts are found as promising channel material for two electrode nanodevices for good electrical conductivity.
We demonstrated a facile method to grow organometal halide perovskite quantum dots in a solid silica matrix. The photoluminescence measurements of the MAPbBr3 quantum dots and corresponding large particles show a shift from blue to green emission with morphological changes. The nanocrystals impregnated on the silica matrix improve the stability and may be useful as functional materials in all solid state light emitting devices
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