Dhriti Ranjan Saha

Senior Research Fellow CSIR

MLS Prof Unit,

Indian Association for the Cultivation of Science,

Kolkata, India 700032

Mobile: 91-980*******

Email: abq1rz@r.postjobfree.com

EDUCATION

• 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

AWARD

• Junior Research Fellow (CSIR)

• Senior Research Fellow (CSIR)

• Visiting Fellow at SMSE,UNSW, Australia

PROJECT

Australia India Science Research Fund (AISRF) Targeted Allocation Project

TA020004, "Nanocomposite Materials for Clean Energy Applications"

COMPUTER SKILL

• Programming: C,C++, Fortran 77,

• Applications: Imagej, Sigmaplot, Origin 8, MS Office 2007, Adobe

Photoshop CS 2,Matlab 2008, AFM image analyser,

• Platform: Windows

RESEARCH EXPERIENCE

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.

RESEARCH PUBLICATIONS

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

Chakravorty

(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

(Comunicated).

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: 978**********).

CONFERENCES

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.

WORKSHOP/SCHOOL

1. International workshop on Tailor made Nanomaterials and

applications for Chemical and Bio-sensors(2-3 March,2009, CGCRI,

Kolkata, India)

2. National school on RECENT TRENDS IN CONDENSED MATTER-II

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.

REFERENCES

1. Prof. Dipankar Chakravorty

INSA Honorary Scientist,

MLS Prof. Unit,

Indian Association for the Cultivation of Science,

Jadavpur, Kolkata, India.

Mobile: +91-983*******

Email: abq1rz@r.postjobfree.com

2. Prof. Arun Kumar Nandi

Polymer Science Unit,

Indian Association for the Cultivation of Science

Jadavpur, Kolkata, India.

Phone: +91-33-247*-**** (Extn 1561) (O)

Email: abq1rz@r.postjobfree.com

3. Dr. Srikanto Bandyopadhyay

Associate Professor

School of Material Science and Engineering,

University of New South Wales,

Sydney, Australia.

Mobile: +61-414-***-***

Email: abq1rz@r.postjobfree.com

4. Dr. Anindya Datta

University School of Basic and Applied Science,

Guru Govind Singh Indraprastha University,

New Delhi-110075, India.

Mobile: +91-995*-***-***

Email: abq1rz@r.postjobfree.com

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