Author
K. P. Adhi
Other affiliations: University of Arkansas
Bio: K. P. Adhi is an academic researcher from Savitribai Phule Pune University. The author has contributed to research in topics: Thin film & Pulsed laser deposition. The author has an hindex of 12, co-authored 43 publications receiving 464 citations. Previous affiliations of K. P. Adhi include University of Arkansas.
Papers
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TL;DR: In this article, a tetrahedrally coordinated crystalline carbon nitride on a tungsten substrate was identified by transmission electron diffraction, and it was shown that the carbon atoms are coordinated only tetrahedral with nitrogen.
Abstract: Pulsed laser induced reactive quenching at a liquid–solid interface was used for the synthesis of tetrahedrally coordinated crystalline carbon nitride on a tungsten substrate. The crystalline phase was identified by transmission electron diffraction. X‐ray photoelectron spectroscopy indicated that the carbon atoms are coordinated only tetrahedrally with nitrogen—as expected for C3N4. The atomic percentage of N (considering only those atoms coordinated with C) is about 35%.
62 citations
TL;DR: In this article, La2/3Ca1/3MnO3 was successively implanted with 100 and 200 keV silver ions at fluences of 4.5×1015 and 1×1016 ions/cm2, respectively, to achieve a fairly uniform implant distribution.
Abstract: Epitaxial films of La2/3Ca1/3MnO3 were successively implanted with 100 and 200 keV silver ions at fluences of 4.5×1015 and 1×1016 ions/cm2, respectively, to achieve a fairly uniform implant distribution. The as-implanted films are insulating and do not show a metal–insulator transition. Postimplantation annealing at 950 °C shows a recovery of the high structural quality of the films, along with an increase in the metal–insulator transition temperature (Tp), magnetoresistance, and the peak temperature coefficient of resistance (TCR) at the transition. The peak TCR of 23% for manganite films is clearly significant for bolometric applications.
51 citations
TL;DR: In this article, undoped and Ga doped ZnO thin films were grown on c -Al 2 O 3 substrates using the 1, 3 and 5.5 cm. wt.
32 citations
TL;DR: In this paper, the surface of poly(tetrafluoroethylene) (PTFE) films, which were subjected to processing by femtosecond (fs) UV radiation from an excimer laser (KrF: λ=248nm, tp∼380fs) in air, was investigated by X-ray photoelectron spectroscopy (XPS).
30 citations
TL;DR: Using X-ray photoelectron spectroscopy (XPS), the surface of polyimide (kapton) was subjected to processing by femtosecond UV radiation from an excimer laser (KrF: λ=248 nm, tp∼380 fs) in air as mentioned in this paper.
27 citations
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12 Mar 2014
TL;DR: In this paper, the effect of reflectivity of the surface, when a pure, monochromatic laser (6) is used, is remedied by the simultaneous application of a relatively shorter wavelength beam (1).
Abstract: In the laser treatment of a workpiece (9), e.g. for surface hardening, melting, alloying, cladding, welding or cutting, the adverse effect of reflectivity of the surface, when a pure, monochromatic laser (6) is used, is remedied by the simultaneous application of a relatively shorter wavelength beam (1). The two beams (1)(5) may be combined by a beam coupler (4) or may reach the workpiece (9) by separate optical paths (not shown). The shorter wavelength beam (1) improves the coupling efficiency of the higher- powered laser beam (5).
1,539 citations
16 Mar 1993
TL;DR: Giant and isotropic magnetoresistance as huge as −53% was observed in magnetic manganese oxide La0.72Ca0.25MnOz films with an intrinsic antiferromagnetic spin structure as discussed by the authors.
Abstract: Giant and isotropic magnetoresistance as huge as −53% was observed in magnetic manganese oxide La0.72Ca0.25MnOz films with an intrinsic antiferromagnetic spin structure. We ascribe this magnetoresistance to spin‐dependent electron scattering due to spin canting of the manganese oxide.
924 citations
TL;DR: In this article, the authors present a survey on the recent progress in laser ablation of a solid target in a confining liquid for the synthesis of nanocrystals with focus on the mechanism of the nanocrystal growth.
898 citations
TL;DR: A review of the methods used, and the results obtained, by a variety of groups in their attempts to prepare carbon nitride films is presented in this paper, with a somewhat speculative set of conclusions.
391 citations
TL;DR: This paper presents a meta-modelling study of the response of the immune system to nanotechnology-based insults to traditional and non-nanoscience treatments.
Abstract: National Cell Bank, Pasteur Institute of Iran, Tehran 1316943551, Iran, Cardiovascular Research Center, Mount Sinai School of Medicine, New York, New York 10029, United States, Department of General, Organic, and Biomedical Chemistry, NMR and Molecular Imaging Laboratory, University of Mons, Avenue Maistriau, 19, B-7000 Mons, Belgium, Institute for Nanoscience and Nanotechnology, Sharif University of Technology, Tehran 14588, Iran, Department of Biomedical Engineering, National Yang Ming University, No 155, Sec. 2, LiNong Street, Taipei 112, Taiwan, Nanotechnology Toxicology Consulting & Training, Inc., Nova Scotia, Canada, Faculty of Medicine, Dalhousie Medical School, Dalhousie University, Halifax, Nova Scotia, Canada, and Institute for Nanoscale Science and Technology (INSAT), University of Newcastle upon Tyne, Newcastle upon Tyne, NE1 7ER, U.K., Nanotechnology Research Centre, Faculty of Pharmacy, Tehran University of Medical Sciences, Tehran, Iran
379 citations