Dipali Banerjee

About

I am currently serving as Professor, at the Department of Physics in IIEST, Shibpur. I completed my B.Sc (1978) in Physics from Hindu College (Delhi University) , M.Sc (1980) from Delhi University with specialisation in Experimental Solid State Physics and M. Phil in Polymer Physics under the supervision of Prof. V. S. Nanda from Delhi University. I obtained my P.hD degree from Indian Association for the Cultivation of Science, (Jadavpur University) Kolkata (1990) under the supervision of Prof. R. Bhattacharya in the field of Expeimental Condensed Matter Physics. I was a post doctoral fellow of CSIR during 1991- 1995 when I worked in the field of fabrication and characterization of materials for application in solar cell with Prof A. K. Barua in Indian Association for the Cultivation of Science. Then I joined B. E. College (Deemed University), Shibpur as a Reader in 1995. From the year of 2003, I have been teaching as a Professor in IIEST, Shibpur. Our group, with of my supervisor, collaborators, faculty members of different research groups and all the members of my research group, we have published more than sixty  research articles in various peer reviewed journals so far. Initially our  main focus was on solid state properties of crystalline materials and some thin films but  with the advent of nanostructure materials/composites our research interest has been synthesis and characterization of nanomaterials (inorganic & organic) including Graphene and Carbon nanotubes and composites to  explore their synergistic properties for green energy generation and environmental remediation. Seven research projects funded by various government aided agencies like UGC, DST and DRDO have been successfully completed by our research group.  

Academic Qualifications

• Post Doc CSIR fellowship, IACS, Kolkata, India (1990-1995)
• Ph. D in Science, IACS, Jadavpur University, Kolkata, India (1990)
• M. Phil, Delhi University (1981)
• M. Sc., Delhi University (1980)
• B. Sc., Delhi university (1978)

Research Statement

Synthesis and characterization of low dimensional materials

Technology of low dimensional/composite materials is a newly emerging and frontier challenging area of science and engineering. Our research mainly focus on synthesis of nanostructured inorganic,organic and composite materials and characterization of  material for green energy generation and environmental remediation. As low dimensional materials exhibit shape, size and morphology dependent properties hence property enhancement of these material through controlled morphology is a practical challenge.

Nanomaterials for Green Energy Generation and environmetal remediation

We work on synthesis of materials like semi-metals, semiconductors(chacogenides), conducting polymers, carbon based materials (RGO and CNT) and their composites through different routes. Use of various surfactants induce unique shape, size and distribution of  nanostructures which in turn impart novelty in the property of the material.Theoretical prediction for enhancement of thermoelectric figure of merit in nanostructured composite material has made it a rigorous task for the experimental researcher to develop such thermoelectric module for practical applications. The same composites when prepared by vaying the percentage of constituents, the material can be used  as photocatalysts for waste water management and fuel cell application. Thin films of conducting polymers prepared through various routes show gas sensing properties. At present my research group is actively involved in synthesis and characterization of inorganic .organic and composite materials developed by hydrothermal, solvothermal, electrochemical, sol gel  and chemical polymerization techniques for various applications.

Application of Nanomaterials

We are  involved in the research area of thermoelectric, gas sensor, photocatalysis  photovoltaic and fuel cell  applications.  A brief graphical representation of our research works is as follows:

• Reduction of graphene oxide through a green and metal-free approach:

Proposed reaction pathway for reduction of GO and HRTEM images & inset SAED of different FRGO sample

• Reduced graphene oxide-polyaniline composites for thermoelectric applications:

Mechanism of the formation of rGO–PANI composite           Room temperature electrical conductivity, thermal conductivity and fig. of merit

• Inorganic-organic hybrids for photoluminescence and  visible-light assisted photo-degradation of organic contaminants: 

• Morphology dependent ammonia sensing :

TEM image of nanostructure of SSA doped PANI synthesized by electrodeposition, Percentage response with time of SSA doped PANI and percentage response with surface to volume ratio

• Electrodeposited thin films for photocatalytic and thermoelectric applications:

• Conductivity of phosphoric acid: an in situ comparative study of proton in phosphoric acid fuel cell:

 Unit PAFC experimental set-up with electrolyte electrode assembly                                                                                Nyquist plots & Temperature dependence of proton conductivity

Latest Publications

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