H
Hirendra N. Ghosh
Researcher at Bhabha Atomic Research Centre
Publications - 224
Citations - 7514
Hirendra N. Ghosh is an academic researcher from Bhabha Atomic Research Centre. The author has contributed to research in topics: Electron transfer & Ultrafast laser spectroscopy. The author has an hindex of 40, co-authored 200 publications receiving 6632 citations. Previous affiliations of Hirendra N. Ghosh include Indian Institute of Engineering Science and Technology, Shibpur & National Renewable Energy Laboratory.
Papers
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Ultrafast Electron Transfer Dynamics from Molecular Adsorbates to Semiconductor Nanocrystalline Thin Films
TL;DR: Using femtosecond mid-IR spectroscopy, a series of studies designed to understand how the interfacial electron transfer dynamics depends on the properties of the adsorbates, semiconductors, and their interaction are presented in this paper.
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Femtosecond IR Study of Excited-State Relaxation and Electron-Injection Dynamics of Ru(dcbpy)2(NCS)2 in Solution and on Nanocrystalline TiO2 and Al2O3 Thin Films
John B. Asbury,Randy J. Ellingson,Hirendra N. Ghosh,Suzanne Ferrere,Arthur J. Nozik,Tianquan Lian +5 more
TL;DR: In this paper, the photophysics and electron injection dynamics of Ru(dcbpy)2(NCS)2 [DCbpy = (4,4‘-dicarboxy-2,2, 2,2'bipyridine)] (or Ru N3) in solution and adsorbed on nanocrystalline Al2O3 and TiO2 thin films were studied by femtosecond mid-IR spectroscopy.
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Dynamics of Electron Injection in Nanocrystalline Titanium Dioxide Films Sensitized with (Ru(4,4'-dicarboxy-2,2'-bipyridine)2(NCS)2) by Infrared Transient Absorption
Randy J. Ellingson,John B. Asbury,Sue Ferrere,Hirendra N. Ghosh,J. R. Sprague,Tianquan Lian,Arthur J. Nozik +6 more
TL;DR: In this paper, femtosecond pump−probe spectroscopy was used to time resolve the injection of electrons into nanocrystalline TiO2 film electrodes under ambient conditions following photoexcitation of the adsorbed dye, [Ru(4,4,dicarboxy-2,2‘-bipyridine)2(NCS)2] (N3).
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Evidences of hot excited state electron injection from sensitizer molecules to TiO 2 nanocrystalline thin films
TL;DR: In this article, electron injection dynamics in dye sensitized TiO2 nanocrystalline thin films were studied with femtosecond mid-infrared spectroscopy, and the dependence of injection rate and yield on the excited state redox potentials was observed.
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Direct Observation of Ultrafast Electron Injection from Coumarin 343 to TiO2 Nanoparticles by Femtosecond Infrared Spectroscopy
TL;DR: In this paper, femtosecond IR spectroscopy was used to detect injected electrons in colloidal TiO2 nanoparticles in the 1900−2000 cm-1 region.