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kiran shankar hazra
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kiran shankar hazra's Page

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kiran shankar hazra is now a member of The International NanoScience Community
Jan 7, 2014

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I am...
My research field or area of interest innanotechnology
Ph.D Research

 Designed efficient Field emitter nanotips based on Carbon Nanotubes (CNT) and Graphene by the help of plasma engineering and selective area CVD synthesis of carbon nanomaterials. (The aim was to develop high brightness and monochromatic electron source) A fully interfaced Field Emission setup and a Field Emission Microscope adjustment (FEM) was also been developed during this research.
 Developed a novel way of thinning process of graphene flakes to achieve monolayer graphene from multilayer configuration. The process involves ultra-low energy plasma ion irradiation and it is also capable to purify graphene layers by eliminating unwanted functional groups attached within the structure.
 Conducted field emission and crystalographic study of Cactus like CNTs, formed by plasma ion irradiation.
 Studied the Opto-Electronic response of CNT and Graphene and developed vertically aligned graphene based highly sensitive and non-cryogenic Bolometric Sensors.
 Worked on patterning of Carbon Nanotube based hollow channels for advanced nano-filtration applications. Also investigated selective area growth mechanism of CNTs upon patterning of catalyst in CVD technique
 Effort has been made to develope transparent conducting membrane based on Carbon nanotubes and Graphene composites for flexible electronics.
 Intensively worked on high quality and diameter selective synthesis of single-walled and multiwall carbon nanotubes. In-depth analysis of laser spectroscopy (Raman, IR and UV-Vis) and electron microscopy (HRTEM, SEM, FIB) have been involved throughout the research.

Postdoctoral Research

 Worked on designing of Micro-accelerator optoelectronic device for relativistic and non-relativistic electron acceleration. The aim was to build the Smallest Micro Accelerator on a dielectric chip.
 Has lead the Nano-fabrication and characterization effort of the micro accelerator prototype, having dielectric slab symmetric structure. Fabrication of this optp-electronic structure involved thin film deposition of different dielectric materials, lithography, wafer polishing, bonding, dicing etc. SEM, FIB and UV-Vis techniques was intensively used for the prototype characterization.
 Developed dielectric based high reflectance Bragg mirror with higher breakdown point.
 Electron beam line testing (60 MeV) through the prototype at SLAC facility in Stanford University.
 Studied Photo-field emission of wedge shaped nanometers for stream of electron sheet (2D) generation
Interest in...
nanomaterials application, sensors, graphene electronics, solar, opto-electronic devices, nanofabrication
Publication list
Published Papers
1. Thinning of multilayer graphene to monolayer graphene in a plasma environment, K S Hazra, J Rafiee, M A Rafiee, A Mathur, S S Roy, J McLauhglin, N Koratkar and D S Misra, Nanotechnology , 22 , 025704, 2011. (this paper has been featured in Nature India)
2. Tailoring the electrostatic screening effect during field emission from hollow multiwalled carbon nanotube pillars, Kiran Shankar Hazra, Tanuj Gigras and D. S Misra, Appl. Phys. Lett. 98, 123116 , 2011

3. Improved Field emission from multiwall carbon nanotubes with nano-size defects produced by ultra-low energy ion bombardment, Kiran Shankar Hazra, N Koratkar and D S Misra, Carbon, 49, 4760-4766 , 2011

4. The role of tunneling barrier modification for the saturation current of carbon nanotube field emission in strong electric field, Kiran Shankar Hazra, Vishal Jain and D.S. Misra, Chemical physics letter, 502, 194-197, 2011

5. Dramatic Enhancement of the Emission Current Density from Carbon Nanotube Based Nanosize Tips with Extremely Low Onset Fields, Kiran Shankar Hazra, Padmnabh Rai, Dipti Ranjan Mohapatra, Neha Kulshrestha, Reeti Bajpai, Soumyendu Roy and D. S. Misra, ACS Nano, 3, 2617, 2009.

6. Controlled Growth of Semiconducting Single-Wall Carbon Nanotube, Soumyendu Roy, Reeti Bajpai, KS Hazra, Padmnabh Rai, N Kulsrestha, DS Misra, International Journal of Nanoscience, 1, 35-38, 2011.

7. Enhancement of Field Emission Characteristics in Aligned Multiwalled Carbon Nanotubes due to 70 MeV Ni6+ Ion Irradiation, Chakraborty, Brahmananda; Satpati, B.; Modak, P.; Hazra, K. S.; Rai, P.; Roy, S.; Avasthi, D. K.; Misra, D. S.; Banerjee, S. International Journal of Nanoscience, 10, 1057, 2011

8. A comparative study of the growth, microstructural and electrical properties of multiwall CNTs grown by thermal and microwave plasma enhanced CVD methods, A Mathur, S Wadhwa, M Tweedie, KS Hazra, C Dickinson, SS Roy, DS Misra, JA McLaughlin, Physica E 44, 29–36, 2011.

9. Enhanced Field Emission and Improved Supercapacitor Obtained from Plasma-Modified Bucky Paper Soumyendu Roy , Reeti Bajpai , Navneet Soin , Preeti Bajpai , Kiran S. Hazra , Neha Kulshrestha , Susanta Sinha Roy , James A. McLaughlin , and D. S. Misra, Small, 7, 688–693, 2011

10. Enhancement of Field Emission Characteristics of Carbon Nanotubes on Oxidation, Ashish Mathur, Susanta Sinha Roy, Sekhar Chandra Ray, Kiran Shankar Hazra, Jeremy Hamilton, Calum Dickinson, James McLaughlin, Devi Shankar Misra, Journal of Nanoscience and Nanotechnology, 2011, 11,7011-7014.

11. Substrate Effects on the Growth of Multiwalled Carbon Nanotubes by Thermal Chemical Vapor Deposition, Ashish Mathur, Susanta Sinha Roy, Shikha Wadhwa, Sekhar Chandra Ray, Kiran Hazra, Devi Shankar Misra, Sushanta Kumar Mitra, James Mclaughlin, Thomas Thundat, Advanced Science Letters, 7, 21-26, 2012

12.Oxygen plasma assisted end-opening and field emission enhancement in vertically aligned multiwall carbon nanotubes, A Mathur, SS Roy, KS Hazra, S Wadhwa, SC Ray, SK Mitra, DS Misra, JA McLaughlin, Materials Chemistry and Physics, 134, 425-429, 2012

13. Healing of Broken Multiwalled Carbon Nanotubes Using Very Low Energy Electrons in SEM; A Route Towards Complete Recovery, Neha Kulshrestha, Abhishek Misra, Kiran Shankar Hazra, Soumyendu Roy, Reeti Bajpai, Dipti Ranjan Mohapatra, and D. S. Misra, ACS Nano, 5, 1724–1730, 2011

14. Effect of top metal contact on electrical transport through individual multiwalled carbon nanotubes, Neha Kulshrestha, Abhishek Misra, Senthil Srinivasan, Kiran Shankar Hazra, Reeti Bajpai, Soumyendu Roy, Gayatri Vaidya, and D. S. Misra, Applied physics letter, 97, 222102, 2010

15. Correlation between the saturation of emission current and defect co-ordination number for irradiated aligned multiwalled carbon nanotubes, B. Chakraborty, P. Rai, K. S. Hazra, D. R. Mohapatra, D.S. Misra and S. Banerjee, Chem. Phy.Lett. 495, 266-269, 2010.

16. Nanotip formation on a carbon nanotube pillar array for field emission application, Padmnabh Rai, Dipti R. Mohapatra, K. S. Hazra, D. S. Misra, and S. P. Tiwari, Appl. Phys. Lett. 93, 131921, 2008.

17. Appearance of Radial breathing modes in Raman spectra of multi-walled carbon nanotubes upon laser illumination, Padmnabh Rai, Dipti R. Mohapatra, K. S. Hazra, D. S. Misra, Jay Ghatak, and P.V. Satyam, Chem. Phys. Lett. 455, 83, 2008.

18. Growth of Carbon Nanotube Arrays using Nanosphere Lithography and Their Application in Field Emission Devices, A Mathur, S. S. Roy, K. S. Hazra, D. S. Misra, and J. A. McLaughlin, Diamond Rel. Mat. 19, 914-917, 2010.

19. Enhanced and Stable Field Emission from in Situ Nitrogen-Doped Few-Layered Graphene Nanoflakes, Navneet Soin, Susanta Sinha Roy, Soumyendu Roy, Kiran Shankar Hazra, Devi S. Misra, Teck H. Lim, Crispin J. Hetherington, and James A. McLaughlin, J. Phy. Chem. C, 115, 5366–5372 , 2011

20. Facile one-step transfer process of graphene, Bajpai R, Roy S, Jain L, Kulshrestha N, Hazra KS, Misra DS. Nanotechnology. 22, 225606, 2011

21. Vertically aligned graphene based non-cryogenic bolometer, Kiran Shankar Hazra, N. Sion, Anil Yadav, James McLauhglin, Devi Shanker Misra, G Travish 2013, arXiv:1301.1302

22. Wafer bonding for large stake dielectric multilayer, K S Hazra, E Sozer, B Matthews, J Mcneur, G Travish, 2013 (manuscript under preparation)

23. Microfabrication of dielectric based, laser powered electron accelerator, K S Hazra, E Sozer, B Matthews, J Mcneur, G Travish, 2013 (manuscript under preparation)

Conferences Proceedings & Posters

1. Experimental Progress Towards a Resonant Slab-symmetric Dielectric Laser Accelerator, G. Travish, J. McNeur, J. Zhou, G. Liu, E. Sozer, K. S. Hazra, H. Yin, International Particle Accelerator Conference 2012, USA
2. Experimental Search For Acceleration in the Micro-accelerator Platform, Josh McNeur, Kiran Shankar Hazra, Brian Matthews, Esin Bengisu Sozer, Gil Travish (UCLA, Los Angeles), Rodney Yoder (Goucher College, Baltimore), Robert Joel England, Behnam Montazeri, Ken Soong, Ziran Wu (SLAC, Menlo Park, California), Edgar Peralta (Stanford University, Stanford, California), International Particle Accelerator Conference 2013, China
3. Numerical Modeling and E`xperimental Data Analysis for Dielectric Laser Accelerators, Esin Bengisu Sozer, Kiran Shankar Hazra, Josh McNeur (UCLA, Los Angeles), Rodney Yoder (Goucher College, Baltimore), Robert Joel England, Ken Soong (SLAC, Menlo Park, California), Edgar Peralta (Stanford University, Stanford, California), Gil Travish (UCLA, Los Angeles, California), International Particle Accelerator Conference 2013, China
4. Induced defects creation of carbon nanotube due to the formation of field emitter nanotips by plasma treatment technique,K.S. Hazra, P. Rai, D. R. Mohapatra, N. Kulsrestha, R. Bajpai, S. Roy, D. S. Misra (Presented at ICONSAT 2010), IIT Bombay, INDIA (international conf.)
5. Selective growth of carbon nanotube for Micro-Pillar formation and their field emission study, Kiran Shankar Hazra, Padmnabh Rai, Dipti R. Mohapatra, and D. S. Misra, Solid State Physics 53, 1263 (2008) , DAE (national conf.)

6. Electron irradiation induced stuructural changes in nickel nanorods encapsulated in carbon nanotubes, N. Kulshrestha, K.S. Hazra, S. Roy, R. Bajpai, D.R. Mohapatra, D.S. Misra, Nanotech 2010 Vol. 1, 976 (international conf.)
7. Patterned growth of carbon nanotubes arrays and their application in field emission devices .Mathur, A, Roy, S.S, Hazra , K.S, Misra, D.S and McLaughlin In: International Workshop on nanotechnology-enables Sensors & Diagnostics, Dublin, Ireland. (international conf.)
8. Raman spectroscopic investigation of the chirality of single-walled carbon nanotubes, produced by microwave plasma chemical vapor deposition, Kiran Shankar Hazra, Padmnabh Rai, Dipti R. Mohapatra, and D. S. Misra, Solid State Physics 52, 339 (2007). DAE (national conf.)
9. Growth of carbon nanotubes arrays using nanosphere lithography and their application in field emission devices. Mathur, A, Roy, SS, Hazra, KS, Misra, DS and McLaughlin, In: 20th European Conference on Diamond, Diamond-Like Materials, Carbon Nanotubes and Nitrides, Athens, Greece. (international conf.)
10. Raman and infrared spectra of isotopically controlled single crystal diamonds, Dipti Ranjan Mohapatra, Padmnabh Rai, K. S. Hazra, R. bajpai, N. Kulshrestha, and D.S Misra, Presented at International Conference on Physics at Surface and Interfaces (PSI 2009), Puri, Orissa, India. (international conf.)
11. Effect of Nitrogen addition on the morphology of chemical vapor deposited single crystal diamond, Dipti Ranjan Mohapatra, Padmnabh Rai, K.S. Hazra, and D.S. Misra, Solid State Physics 53, (2008). DAE (national conf.)
12. Diameter control of multi-walled carbon nanotubes by growth temperature in thermal chemical vapor deposition, Padmnabh Rai, Dipti R. Mohapatra, K. S. Hazra, and D. S. Misra, Presented at International Conference on Nano Science and Technology (ICONSAT 2008), Kalpakkam-603 102, India. (international conf.)
13. Field Emission from Carbon Nanotubes Grown at Different Temperature, Padmnabh Rai, Dipti R. Mohapatra, K. S. Hazra, Abha Misra, Pawan K. Tyagi, and D. S. Misra, Solid State Physics 52, 335 DAE (national conf.)
14. Tempereture dependent photoluminescence spectroscopy in chemical vapor deposited diamond film, Dipti R. Mohapatra, Padmnabh Rai, Abha Misra, K. S. Hazra, P. K. Tyagi, and D.S. Misra, Solid State Physics 52, 975 (2007). DAE (national conf.)
15. Structural Changes In Nickel Nanaorods Encapsulated In Carbon Nanotubes By 200 KV Electron Irradiation In TEM, Neha Kulshrestha, KS Hazra, S Roy, R Bajpai, DR Mohapatra, DS, AIP Conference Proceedings, 1313, 259 (international conf.)


1. “Device having aligned carbon nanotube”; D. S Misra and Kiran Shankar Hazra. (US patent; Patent. No. 8198794, Date June 12, 2012)

Press Coverage

1. Nature India: “Graphene Nanomesh”
2. VerticalNews
3. APS News "Chip-scale Accelerators Verge on Breakthrough"
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