A5016535495- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Conducting polymers and applications
- Analytical Chemistry and Sensors
- ZnO doping and properties
- Porphyrin and Phthalocyanine Chemistry
- TiO2 Photocatalysis and Solar Cells
- Advanced Chemical Sensor Technologies
- Spectroscopy and Quantum Chemical Studies
- Lipid Membrane Structure and Behavior
- Surfactants and Colloidal Systems
- Copper-based nanomaterials and applications
- Perovskite Materials and Applications
- Magnetism in coordination complexes
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- Organic Electronics and Photovoltaics
- Electrochemical sensors and biosensors
- Lanthanide and Transition Metal Complexes
- Polymer Nanocomposites and Properties
- Quantum Dots Synthesis And Properties
- Polyoxometalates: Synthesis and Applications
- Electrochemical Analysis and Applications
- Supramolecular Chemistry and Complexes
- Polymer Nanocomposite Synthesis and Irradiation
Bhabha Atomic Research Centre
2014-2024
Homi Bhabha National Institute
2020-2024
Bhabha Atomic Research Center Hospital
2013-2022
Central Salt and Marine Chemicals Research Institute
2012
National Chemical Laboratory
1997
Self supporting poly(methyl methacrylate) (PMMA)/In2O3 with varying In2O3 content (1, 2, 5 and 10 wt% loading) nanocomposite films have been prepared by solvent-casting spin casting techniques. The structurally characterized X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy the results confirm incorporation of nanoparticles in PMMA matrix. thermal properties investigated thermogravimetric analysis (TGA) differential scanning calorimetry (DSC). show that degradation...
Herein, we report honeycomb nanostructured single crystalline hexagonal WO(3) (h-WO(3)) thin films in order to improve electrochromic performance. In the present investigation, with different unit size and nanowire array highly nanocrystalline frameworks have been synthesized via a hydrothermal technique. The influence of reaction time on cells, crystallite size, lithium ion diffusion coefficient switching for coloration/bleaching were studied systematically. study reveals that cell has...
Variation of the solvent polarity leads to formation vesicles and reverse a newly synthesized amphiphilic Ru(II)-polypyridyl complex.
Nanostructured TiO2 thin films were fabricated via a facile, economical, and energy-efficient microwave-assisted dip-coating (MWDC) technique. Further, the resulting characterized by means of X-ray diffraction, high-resolution transmission electron microscopy, selected-area Fourier transform Raman spectroscopy, photoelectron photoluminescence spectroscopy techniques for their phase structure, morphology, optical surface properties. TiO2-mediated photoelectrocatalytic degradation antibiotic...
Nanoparticulate thin films of PdO were prepared using the Langmuir–Blodgett (LB) technique by thermal decomposition a multilayer film octadecylamine (ODA)–chloropalladate complex. The stable complex formation ODA with chloropalladate ions (present in subphase) at air–water interface was confirmed surface pressure–area isotherm and Brewster angle microscopy. nanocrystalline after as-deposited LB X-ray diffraction Raman spectroscopy. Nanocrystalline further characterized UV–vis photoelectron...
Summary Nanocrystalline Nickel oxide (NiO) thin films were electrochemically deposited onto ITO substrate at room temperature. In order to examine the optical absorption, crystal structure and surface morphology of NiO characterized by means UV–vis spectrophotometer, X‐ray diffraction (XRD) scanning electron microscopy (SEM). The electrochromic (EC) performance film was investigated cyclic voltammetry (CV), chronoamperometry (CA) chronocoulometry (CC). switching response is found be 5.62 s...
Sodium hexametaphosphate (HMP) stabilized nickel hexacyanoferrate (NiHCF) nanoparticles were prepared in aqueous solution and successfully extracted into an organic phase using cetyltrimethylammonium bromide (CTAB) as the surfactant. Dynamic Light Scattering (DLS) studies suggest that average size of is retained during extraction process from to phase. X-Ray diffraction, cyclic voltammetry, IR spectroscopy magnetic measurements carried on shows specific signatures presence surfactant...
The authors report the room temperature gas sensitivity of ultrathin SnO2 films prepared by thermal decomposition multilayer Langmuir-Blodgett (LB) films. films, which are characterized various spectroscopic techniques and electrical measurements, have been shown to sense ammonia at with fast response recovery. presence a large number surface states in film is responsible for sensitivity. Present results demonstrate potential LB technique fabricate high quality oxide useful sensor applications.
Langmuir–Blodgett self organized nanocrystalline tungsten oxide thin films.
Ultrathin PdO-TiO(2) composite films have been prepared for the first time by thermal decomposition of multilayer Langmuir-Blodgett (LB) octadecyl amine-metal (Ti and/or Pd) ion complexes. The oxide film has characterized various spectroscopic techniques and compared with pure ultrathin TiO(2) film. results X-ray diffraction (XRD) Raman spectroscopy reveal formation a mostly crystalline anatase phase in thin whereas separate phases PdO Crystallite sizes 4-7 nm estimated from XRD line...
The effects of various compositions in mixed surfactant solutions sodium dodecyl sulfate (SDS), an anionic surfactant, and cetyltrimethylammonium bromide (CTAB), a cationic at air–water interface have been investigated using vibrational sum-frequency generation (VSFG) nonlinear optical spectroscopy. work is focused on understanding the temporal evolution aggregation behavior catanionic system CTAB SDS charged interface. For surfactants, VSFG intensity OH stretching bands decreases, whereas...
We demonstrate the use of a Langmuir monolayer as templating agent for growth oriented crystals metal(II) −hexacyanoferrate(III) (where metal can be Ni, Co, or Cu), popularly known Prussian Blue analogues, which are difficult to grow by conventional means. Crystalline films deposited at air−water interface, under an octadecylamine (ODA) in trough, upon addition K3Fe(CN)6 solution into subphase containing aqueous chloride solution. Template action promote crystallization interface appears...
Controlled thickness of the WO 3 Langmuir–Blodgett blocking layer in Debye length regime improves device efficiency.