Institution
Indian Association for the Cultivation of Science
Education•Kolkata, India•
About: Indian Association for the Cultivation of Science is a education organization based out in Kolkata, India. It is known for research contribution in the topics: Catalysis & Excited state. The organization has 3867 authors who have published 10457 publications receiving 220098 citations.
Topics: Catalysis, Excited state, Thin film, Ligand, Nanoparticle
Papers published on a yearly basis
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TL;DR: In this paper, the effects of post-deposition heat treatment in vacuum and hydrogen atmosphere on the above properties were studied to derive meaningful information on the scattering mechanisms in ZnO:Al films.
76 citations
TL;DR: In this article, terminal alkynes reacted with acid chlorides in the presence of cuprous iodide as a catalyst in Et 3 N at room temperature yielding α,β-acetylenic ketones in good to excellent yields.
76 citations
TL;DR: In this article, high pressure (~40 Pa) d.c. sputtering technique in an argon plasma on fused silica substrate was used to prepare nanocomposite films containing silver particles embedded in SiO2 matrix.
Abstract: Nanocomposite films containing silver particles embedded in SiO2 matrix were prepared by high pressure (~40 Pa) d.c. sputtering technique in an argon plasma on fused silica substrate. Particle size and metal volume fraction were tailored by varying the substrate temperature (Ts~233-300 K) and deposition time (15-240 s). Reduction in size and volume fraction of metal particles culminated in blue-shift of the surface plasmon resonance peak in the optical absorbance spectra of the films. Absence of surface plasmon peak in the absorption spectra below a critical particle size and metal concentration of the nanocomposite films and appearance of sharp absorption edge in the absorbance spectra within the UV-VIS range indicated the semiconducting behaviour of the ultrafine silver particles. Experimental absorbance spectra were theoretically simulated by Mie scattering theory and Maxwell-Garnett effective medium theory.
76 citations
TL;DR: The active site of the mononuclear Fe-hydrogenase (Hmd) is a unique non-heme Fe enzyme involved in the catalytic activation of molecular H2 as discussed by the authors.
76 citations
TL;DR: Graphene oxide is functionalized by thymine to realize simultaneous detection of both Hg2+ and I- selectively using fluorescence turn-off-on mechanism and ultra high sensitivity to the extent of ppb level exploiting large surface area of graphene is achieved.
Abstract: Selective detection of either mercury (Hg2+) or iodide (I-) ion using fluorescence turn-on or turn-off processes is an important area of research. In spite of intensive research, simultaneous detection of both mercury and iodide using fluorescence turn-off-on processes, high sensitivity and theoretical support concerning the mechanisms are still lacking. In the present work, graphene oxide is functionalized by thymine to realize simultaneous detection of both Hg2+ and I- selectively using fluorescence turn-off-on mechanism. Ultra high sensitivity to the extent of ppb level exploiting large surface area of graphene is achieved. DFT calculations also assist to realize the detailed mechanisms involving this PL quenching and also its regain during sensing of these ions in aqueous solution.
76 citations
Authors
Showing all 3900 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Yves Pommier | 123 | 789 | 58898 |
| Flemming Besenbacher | 114 | 728 | 51827 |
| Katsuhiko Ariga | 112 | 864 | 45242 |
| Shunichi Fukuzumi | 111 | 1256 | 52764 |
| Rajdeep Mohan Chatterjee | 110 | 990 | 51407 |
| Kwang S. Kim | 97 | 642 | 62053 |
| Amar K. Mohanty | 81 | 538 | 31856 |
| Nigel D. Browning | 81 | 646 | 23621 |
| Andrea Caneschi | 80 | 435 | 25896 |
| Rodolphe Clérac | 78 | 506 | 22604 |
| Subrata Ghosh | 78 | 841 | 32147 |
| Miaofang Chi | 77 | 304 | 22817 |
| Yuan Ping Feng | 77 | 650 | 25846 |
| D. D. Sarma | 70 | 521 | 18082 |
| Asim Bhaumik | 69 | 466 | 16882 |