11 February 2013

Nanotechnology Education

Experiments for M.Tech. in Nanotechnology

Readers of this blog will be excited to know that following are the experiments proposed for students of M.Tech. in Nanotechnology by Chhattisgarh Swami Vivekanand Technical University, Bhilai (CG) India. Do you have any suggestion for setting up and preparation of teaching material for these experiments?

The experiments are as follows.



Semester-I

Nanotechnology for Energy System Lab

  1. Fabrication and study of characteristics of dye-sensitized solar cell.
  2. Fabrication and study of characteristics of alkaline electrolyte fuel cell
  3. Fabrication and study of Proton Exchange membrane (PEM) fuel cell.
  4. Study of various characteristics of Li-ion based batteries.
  5. Fabrication and study of solid oxide fuel cells.
  6. Fabrication and study of micro fuel cell power sources.
  7. To study solar energy harvesting using photo-thermal solar cells.
  8. To study the volumetric and gravimetric storage capacities of hydrogen storage nano materials.
  9. Study of various characteristics of MEMS.
  10. Study of various characteristics of NEMS.
  11. Study of efficiencies and other parameters of various solar cell structures and their comparison.
  12. Study of the behavior of the piezoelectric membranes and their applications.



Simulation Lab                                         

Use appropriate simulation software to study the following.
1.   Use appropriate simulation software to study the  Molecular Dynamics simulations of nano-materials.
2.   Simulate ballistic transport properties in 3D Carbon NanoTube Field Effect Transistor (CNTFET) devices.
3.   Use appropriate simulation tool to compute molecular electronic spectra.  
4.   Simulate Coulomb Blockade through Many-Body Calculations in a single and double quantum dot system. 
5.   Compute by simulation the electronic structure of various materials in the spatial configuration of bulk (infinitely periodic).
6.   Apply simulation technique to compute the electronic structure of quantum wells (confined in one dimension.
7.   Simulates pull-in behavior of Carbon nanotube based NEMS with fixed-fixed boundary conditions, with and without Vander Waal's effect.
8.   Apply simulation techniques to visualise the surface texture of nanostructured ZnO material.
9.   Express graphically the states of molecular vibrations in silver nanomaterials using simulation techniques.
10. Use simulation methods to study the characteristics of quantum dots
11.   Use simulation methods to study the variation of energy band gap with size of nanomaterials.
12.   Use simulation method for study of variation of surface energy with size of the nanoparticles.


Semester-II

CHARACTERIZATION OF NANOMATERIALS

1.  Study of nanocrystalline films of II-VI compounds doped with rare earths for applications in light detectors, Solar cells, Lamp    phosphors etc.
2. Absorption spectral studies of the prepared nanocrystalline films and determination of absorption coefficient.
3. Tauc’s plots and determination of   band gap from the absorption spectra.
4. Determination of particle size from the absorption spectral studies of nanocrystalline films.
5. Photoluminescence emission spectral studies of the prepared nanocrystalline films.
6.  Study of   luminescence characteristics of the prepared Alkaline  earth aluminates.
7.   Study of Hall effect in semiconductors and its application in nanotechnology.
8. Measurement of electrical conductivity of thin film of semiconductors by Four Probe Method and study of temperature variation of electrical conductivity.
9. Study and determination of optical and electrical properties of surface conducting glass plate by spray pyrolysis method.
10. Study   and determination of optical and electrical properties of surface conducting glass plate by chemical route.
11. Study of luminescent properties of nanostructured Y2O3: Eu phosphors.
12. Study of electro chromic properties Prussian blue nano thin film.
13. Study of aqueous Ferro fluid (colloidal suspension of magnetic nanoparticles) under external magnetic field.




SYNTHESIS OF NANOMATERIALS


1.  Synthesis of nanocrystalline films of II-VI compounds doped with rare earths by chemical deposition technique
2. Fabrication of nanocrystalline films for use as optical filter for solar cells.
3.   Synthesis of Alkaline earth aluminates in nanocrystalline form by combustion synthesis.
4.  Preparation of surface conducting glass plate by spray pyrolysis method.
5.   Preparation of surface conducting glass plate by chemical route.
6. Working with high vacuum coating unit and deposition of various metals on different substrates.
7. Preparation of nanostructured Y2O3: Eu phosphors .
8. Formation of Prussian blue nano thin film and study of its electro chromic properties.
9. Fabrication of micro fluidic nanofilter by polymerisation reaction.
10. Synthesis of aqueous Ferro fluid (colloidal suspension of magnetic nanoparticles).
11. Preparation and characteristics of Cadmium Selenide quantum dot List of Experiments nanoparticles.
12. Fabrication of  nano silver arrays by nanosphere lithography.

25 August 2011

Physics can help in understanding cancer!

In a recent article in Nature Reviews Cancer (see Nature Reviews Cancer 11, 657-670 (September 2011) | doi:10.1038/nrc3092 ) scientists Franziska Michor, Jan Liphardt, Mauro Ferrari & Jonathan Widom have asserted that physicists can help in understanding the process of development of complexities of cancer cells. In cancer cells, the genetic and biochemical alterations  occur. Techniques like large-scale cancer genomics, proteomics and RNA-sequencing efforts are used to map these changes. According to them, however, it is difficult to integrate and interpret these data and to translate them into treatments. The difficulty is the fact that cancer cells evolve, and their initiation, progression and metastasis are influenced by a wide variety of factors. Therefore, to understand the whole process of progression of cancer cells, the US National Cancer Institute Physical Sciences-Oncology Centers initiative is bringing together physicists, cancer biologists, chemists, mathematicians and engineers. Thus now physical scientists will now help biological scientists to understand biological processes of development of malignant tumors.

19 April 2008

Why this blog?

What prompts me to publish this blog? This question keeps me sleepless and is a painful cause of all the perturbations evident somewhere in my actions. Having spent a long time on this earth as a higher animal specie, struggling all through the complex web of life, sometimes appreciating the creator, often in a state of utter helplessness scolding my existence on earth, I thought now is the time when I must share my experiences, knowledge gained so far, my joys and my pains all with a larger audience beyond the boundaries of a family or school, and must educate the masses, which is my responsibility as an educationist towards the society!
There have been many phase transitions in life. This process is exactly similar as in materials. It is said that life is a long sentence of sorrow punctuated by happiness. To me it appears that life is a long process of evolution supported by change of state (phase transitions) from one set of circumstances to another set of circumstances! Life could have been programmable, if only one should understand the algorithm of life. It appears that technology supports migration of life from a painful set of events to another favourable set of events. How this happens, this is going to be the talk of our this blog!.........

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About Me

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Presently, Dean, Research and Development,and Professor of Nanotechnology, Christian College of Engineering and Technology, Bhilai (CG) 490026 India; Ex Professor in Physics and Head of Department of Electronics & Information Technology, Bhilai (CG) 490006, India. Also, Chairman, Nanotechnology Core Group, Chhattisgarh Swami Vivekanand Technical University, Bhilai (CG).