2012
DOI: 10.1007/s10895-012-1042-4
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Photosensitization of Imidazole Derivative by ZnO Nanoparticle

Abstract: A sensitive imidazole based fluorescent sensor like 4, 5-diphenyl-2(E)-styryl-1H-imidazole, for ZnO has been designed and synthesized via simple steps. The absorption, fluorescence, SEM, EDX and IR studies indicate that imidazole derivative is bound on the surface of ZnO semiconductor. Based on photo-induced electron transfer (PET) mechanism, fluorescent enhancement has been explained and apparent binding constant has been calculated. Ligand adsorption on ZnO nanoparticle lowers of the HOMO and LUMO energy lev… Show more

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Cited by 20 publications
(4 citation statements)
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“…The interaction of two triplet excited acceptors via secondary energy transfer process leads to the triplet-triplet annihilation. In triplet-triplet annihilation, the triplet energies combine which converts low energy photons to high energy photons [53,62,63]. High energy photon results in low wavelength which is clearly seen in Fig.…”
Section: Absorption Excitation and Emission Studiesmentioning
confidence: 95%
“…The interaction of two triplet excited acceptors via secondary energy transfer process leads to the triplet-triplet annihilation. In triplet-triplet annihilation, the triplet energies combine which converts low energy photons to high energy photons [53,62,63]. High energy photon results in low wavelength which is clearly seen in Fig.…”
Section: Absorption Excitation and Emission Studiesmentioning
confidence: 95%
“…Metal complex‐sensitized semiconductor oxide nanoparticles have emerged as novel photoinduced antimicrobial agents over the past decade. In recent years, many organic heterocyclic sensitizers of coumarin, merocyanine, indoline, polyene, triphenylamine, fluorine, and tetrahydroquinoline have been developed and are being used as sensitizers for dye‐sensitized solar cells, photo dynamic therapy, these organic photosensitizers have received much attention because of their ease of synthesis, low cost, and high molar extinction, but the studies on antimicrobial activity of organic dye‐sensitized semiconductor nanoparticles are very few. Application of organic dye‐sensitized nanoparticles for antibacterial applications could open up a new path toward treating drug‐resistant bacteria.…”
Section: Introductionmentioning
confidence: 99%
“…Among various materials that are used to modify the working electrodes for sensor fabrication, the metal oxide nanomaterials plays a special role due to their unique characteristics properties due to these important properties, the metal oxide nanomaterials are widely used for various applications such as biosensing, catalysis, sensors, electronic devices etc. [3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19]. Recently, the Fe 2 O 3 , one of the important metal oxide materials has received a considerable attention due to its narrow band gap, bio-compatibility, thermodynamically stable nature and environmental friendly, low-synthesis cost and so on [20][21][22][23][24][25][26].…”
Section: Introductionmentioning
confidence: 99%