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April 09, 2013
Contact Info:

Dhriti Ranjan Saha
Senior Research Fellow CSIR

MLS Prof Unit,
Indian Association for the Cultivation of Science,
Kolkata, India 700032
Mobile: 91 980*******

• Ph D: (2008-Present)
Institute: Indian Association for the Cultivation of Science
Dissertation: “Electrical, magnetic and magnetodielectric effect in
nanodimensional glasses and their nanocomposites”
Supervisor: Prof. Dipankar Chakravorty and Prof. Arun kumar Nandi
• M Sc: (2005-2007) Marks 72%
Institute: Tripura University
Subject: Physics
Specialization: Electronics
• B Sc: (2002-2005) Marks 70%
Institute: Tripura University
Major: Physics
Minor: Chemistry, Mathematics

• Junior Research Fellow (CSIR)
• Senior Research Fellow (CSIR)
• Visiting Fellow at SMSE,UNSW, Australia

Australia India Science Research Fund (AISRF) Targeted Allocation Project
TA020004, "Nanocomposite Materials for Clean Energy Applications"

• Programming: C,C++, Fortran 77,
• Applications: Imagej, Sigmaplot, Origin 8, MS Office 2007, Adobe
Photoshop CS 2,Matlab 2008, AFM image analyser,
• Platform: Windows
Nanodimensional compositional glass preparation, characterization and
specific measurement were done during my Ph D thesis work. Li2O.SiO2
nanoglasses and Fe2O3.SiO2 nanoglasses were prepared using sol-gel
method within a hard template such as compacted nano CuO or ZnO
nanorods or mesoporous KIT 6. X ray diffractogram and Transmission
electron microscopy was used to characterise these hard templates. The
ion dynamics of Li+ was studied by impedence spectroscopy using LCR
meter in Cp-D mode. DC measurements were done by Keithley 617
electrometer. Time – Current measurements were carried out by voltage
source meter using blocking electrode as silver paint. The volume fraction of
the nanoglass contributing to the ionic resistivity was found out by
calculating pore volume from the FESEM micrograph. Magnetic
measurements on Fe2O3-SiO2 nanoglass-CuO or Fe2O3-SiO2 nanoglass-KIT 6
were done by SQUID magnetometer in the temperature range of 2-300K. The
magneto dielectric measurements were done using an Electromagnet (upto
2 T) and LCR meter.

Chemical analysis of materials was done using titration, EDS (Electron
dispersive X ray Spectroscopy), XPS (X ray photoelectron spectroscopy).

Electrodeposition was used to grow fractal structure of metallic silver.
These fractals are composed of nano silver particles. Nanomechanical study
of these nano silver particles was performed using Hysitron triboindenter
instrument (TI 900). Modulous, Hardness and Creep strain rate were
calculated for different nanomaterials and their nanocomposites.

Polymer films of Poly vinyl alcohol (PVA) and Poly acrylamide were prepared
by solution casting and spin coating. Polymer characterization was done
using FTIR, DSC, DTA-TGA. Temperature dependent contact angle
measurements, temperature dependent atomic force micrograph and
temperature dependent apsorption study were done during my research in
superhydrophobicity. Surface roughness measurements were done using
atomic force microscope.

1. “Nanoglass in lithia–silica system grown within pores of pellets
comprising CuO nanoparticles”,
Dhriti Ranjan Saha, Anindya Datta, Sankar Mandal, Manabendra
Mukherjee, Arun Kumar Nandi, Dipankar Chakravorty. Solid State
Ionics, 186, 2011, 14.
2. Magnetodielectric Effect in Graphene-PVA Nanocomposites,
Sreemanta Mitra, Oindrila Mondal, Dhriti Ranjan Saha, Anindya
Datta, Sourish Banerjee and Dipankar Chakravorty. J. Phys. Chem. C,
115, 2011, 14285.
3. “Nanoindentation studies on composites of CuO nanoparticles-
Lithia Silica nanoglass”,
Dhriti Ranjan Saha, Partha Hajra, Mykanth Reddy Mada, Philip
Boughton, Sri Bandyopadhyay, Dipankar Chakravorty . AIP
Conference Proceedings, 1447, 2012, 287, doi:10.1063/1.4709992.
4. “Magnetodielectric effect in composites of nanodimensional glass
and CuO nanoparticles”,
Dhriti Ranjan Saha, Manabendra Mukherjee, Dipankar Chakravorty.
J.Magn.Magn. Mater., 324, 2012, 4043.
5. “Synthesis and Electrical Conductivity of Li+ ion conducting
Nanoglass”, Dhriti Ranjan Saha, Dipankar Chakravorty. (CRTRP
2012 Proceeding ISBN 818*******).
6. “Ferromagnetic-like Behaviour in Nanosilica Glass Containing
Iron Ions and giant Magnetodielectric Effect in Composites of
these Glasses with Mesoporous Silica”
Dhriti Ranjan saha, Shilpi Banerjee, Arun Kumar Nandi and
Dipankar Chakravorty
. J. Phys. Chem. C, 116, 2012, 21679.
7. “Nanoindentation studies on silver nanoparticles”
Dhriti Ranjan Saha, Amrita Mandal, Sreemanta Mitra, Mahikanth
Reddy Mada, Philip Boughton, Sri Bandyopadhyay, Dipankar
Chakravorty (Accepted for AIP Conference Proceedings).
8. “Viscoelastic properties of Graphene-PVA nanocomposites”
Sreemanta Mitra, Dhriti Ranjan Saha, Sourish Banerjee, Dipankar
(Accepted for AIP Conference Proceedings).
9. “Enhancement of Ionic Conductivity in Li2O-SiO2 Glass in
Nanodimensions Grown within Pellets of ZnO Nanorods and
Magnetodielectric Properties of these Nanocomposites”
Dhriti Ranjan Saha, Arun Kumar Nandi, Dipankar Chakravorty

Book Chapter:
1. “Biological implications of metallic nanoparticles”
Shilpi Banerjee, Dhriti Ranjan Saha and Dipankar Chakravorty, Ed,
A. Goswami and S. Roy Choudhury, Nanobiotechnology: Basic and
Applied Aspects (Anthem Press India) (2013) (ISBN: 9789380601328).

1. International Conference on Fundamental and Applications of
Nanoscience and Technology (ICFANT-2010) during 9th -11th
December, 2010 at School of Materials Science & Nanotechnology,
Jadavpur University.
2. 56th DAE-Solid State Physics Symposium during 19th – 23rd December
2011 at SRM University, Kattankulathur, Tamil Nadu.
3. National Conference on Recent Trends of Research in Physics, during
3rd and 4th February,2012 at Department of Physics, Tripura
University (A Central University), Tripura, India.
4. National Conference on Sustainable Development through Innovative
Research in Science and Technology during 28-29th September 2012
at Jadavpur University, Kolkata-32, India.
5. C K Majumder Symposium on Condensed Matter Physics on 24th
November 2012 at Indian Association for the Cultivation of Science,
Kolkata, India.
6. International Conference on Recent Trends in Applied Physics &
Material Science (RAM2013) during 01-02 February 2013 at Govt.
College of Engineering & Technology, Bikaner, Rajasthan, India.
1. International workshop on Tailor made Nanomaterials and
applications for Chemical and Bio-sensors(2-3 March,2009, CGCRI,
Kolkata, India)
held during March 27th -29th, 2009 at Saha Institute of Nuclear
Physics, Kolkata.
3. India-Australia International Workshop on Nanotechnology in
Materials and Energy Application (IAWNT-2011) during 29th – 31st
December 2011 at Jadavpur University, Kolkata.
4. Workshop on Advanced Functional Materials (WAFM-2012) during
19th March-24th March 2012 at Department of Physics, Banaras
Hindu University, Varanasi, India.
5. 1st International Workshop on Nanomaterials (IWoN): Engineering
Photon and Phonon Transport during 14th-15th December 2012 in
Jadavpur University, Kolkata, India.

1. Prof. Dipankar Chakravorty
INSA Honorary Scientist,
MLS Prof. Unit,
Indian Association for the Cultivation of Science,
Jadavpur, Kolkata, India.
Mobile: +91 983*******

2. Prof. Arun Kumar Nandi
Polymer Science Unit,
Indian Association for the Cultivation of Science
Jadavpur, Kolkata, India.
Phone: +91 33 2473 4971 (Extn 1561) (O)

3. Dr. Srikanto Bandyopadhyay
Associate Professor
School of Material Science and Engineering,
University of New South Wales,
Sydney, Australia.
Mobile: +61 414 751 755

4. Dr. Anindya Datta
University School of Basic and Applied Science,
Guru Govind Singh Indraprastha University,
New Delhi-110075, India.
Mobile: +91 9953 408 629