Sunandan Baruah

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Enhanced visible light photocatalysis through fast crystallization of zinc oxide nanorods

by joydeep dutta and Sunandan Baruah

Beilstein Journal of Nanotechnology, 2010

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Enhanced visible light photocatalysis through fast crystallization of zinc oxide nanorods

Beilstein journal of nanotechnology, 2010

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Hydrothermal growth of ZnO nanostructures

Science and Technology of Advanced Materials, 2009

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Zinc stannate nanostructures: hydrothermal synthesis

Science and Technology of Advanced Materials, 2011

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Nanotechnology applications in Sensing and Pollution Degradation in Agriculture

Abstract With the rise in global population, the demand for increased supply of food has led to s... more Abstract With the rise in global population, the demand for increased supply of food has led to scientists and engineers to design new methods to boost agricultural production. The widespread use of persistent pesticides globally to improve agricultural productivity over the last six decades has contaminated in several places ground water and soil, resulting in diseases and hardships in non target species like humans and animals. By exploiting changes in the electronic properties of nanomaterials with decreasing crystallite sizes, a ...

Manganese doped zinc sulfide quantum dots for detection of Escherichia coli

Journal of Fluorescence, 2012

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Photocatalytic paper using zinc oxide nanorods

Science and Technology of Advanced Materials, Oct 1, 2010

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Role of Resonance Energy Transfer in Light Harvesting of Zinc Oxide-Based Dye-Sensitized Solar Cells

The Journal of Physical Chemistry C, May 21, 2010

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Superhydrophobic surfaces using selected zinc oxide microrod growth on ink-jetted patterns

Journal of colloid and interface science, Nov 11, 2010

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Photoselective excited state dynamics in ZnO–Au nanocomposites and their implications in photocatalysis and dye-sensitized solar cells

Phys. Chem. Chem. Phys., Jun 9, 2011

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Nanotechnology applications in pollution sensing and degradation in agriculture: a review

Environmental Chemistry Letters, Sep 1, 2009

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PH-Dependent Growth of Zinc Oxide Nanorods

Journal of Crystal Growth, 2009

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An Approach for Design of Size Independent Simple Microstrip Antenna with Complementary Split Ring Resonator at Ground Plane

by Sivaranjan Goswami and Sunandan Baruah

Microstrip antennas have received a wide attention all over the world in the past few decades wit... more Microstrip antennas have received a wide attention all over the world in the past few decades with the fast development of portable electronic gadgets like mobile phones, laptops etc. The sizes of these devices are shrinking day by day and functionalities are becoming wider. However, the size of the microstrip antenna often puts a limit to the extent to which the size of a device can be. Half-wavelength and quarter-wavelength antennas are considered as standard in many theoretical works. In some recent works some fractional wavelength antennas with electrical size reduced up to only a small fraction of wavelength have been proposed. In this work, a new approach has been presented that attempts to eliminate the convention of considering operating frequency as a limiting condition for design of microstrip antenna and provides the freedom of selecting a considerably small antenna irrespective of operating frequency. The key feature of the antenna is a Complementary Split Ring Resonator (CSRR) which is used at the ground plane. By adjusting the various dimensions of the CSRR structure resonant frequency at different frequencies can be obtained. In this way the electrical size of a stripline fed rectangular antenna is reduced up to only 12.9% of resonant wavelength.

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