Arijit Chowdhuri

=Profile=



Dr. Arijit Chowdhuri is Assistant Professor in Department of Physics in Acharya Narendra Dev College. He has been one of the workshop coordinators of WikiEd08 and WikiEd09. One of the first faculty members of the college to learn about Wikieducator, he is associated with all kinds of IT work in the college.

He is actively involved in research work in Experimental Condensed Matter Physics with Professor Vinay Gupta, at Electronic Materials and Devices Laboratory (EMDL),Department of Physics & Astrophysics, University of Delhi.

Currently, continuing with my post doctoral research work and Co-Investigator in sponsored research projects with Professor Vinay Gupta at Department of Physics & Astrophysics, University of Delhi in the area of packaged gas sensors based on semiconductor materials and SAW devices besides undergraduate college teaching. My main aim is to tailor the material property by tuning the plasma while processing and to develop a miniaturized packaged integrated sensor device exhibiting enhanced response characteristics.

=Educational Qualifications=

Ph.D. (Physics) from University of Delhi (2003), Thesis on “H2S gas sensors based on SnO2 films loaded with CuO dotted islands” under supervision of Professor K. Sreenivas.

CSIR-UGC National Eligibility Test (NET) Examination 1997 qualified.

B.Sc. (Hons) and M..Sc. in Physics (specialization in Electronics) from University of Delhi in 1995 and 1997 respectively

=Research Interest=

Thin films of electronic materials; Integrated semiconductor gas/chemical sensors; Electronic Nose; plasma based processing techniques (RF Sputtering), Magnetic field assisted plasma.

=Research Projects=

Co-Investigator in project “Development of magnetron source for Plasma assisted growth of Metal-oxide films for sensor applications” sponsored by Department of Science & Technology, Govt. of India (2008-11)

=Hands-on experience=

RF/DC based plasma (magnetic field assisted) processing techniques for thin films and nanostructures, fabrication of Micro-electronic devices (Integrated semiconductor sensors and thin film SAW Devices), Pulsed Laser Deposition technique, Photolithography setup and patterning of inter-digital electrodes, Synthesis of nanoparticles, Thermal evaporation, Atomic Force Microscopy (AFM), Scanning Electron Microscopy (SEM), X-ray diffraction, precision capacitance bridges, Keithley electrometers, Thickness profilometer, UV-VIS spectroscopy

=Brief research outcomes=

Indigenously designed a Gas Sensor Test Rig integrated with PC based automatic data-acquisition for precise measurements of sensor response (up to 20ppm.

Developed piezoelectric ZnO films for SAW devices and acoustic sensors for Space applications and entertainment electronic devices.

Synthesized Cu and CuO nanoparticles (15 to 50 nm) by plasma processing and chemical route (Reverse Micelle).

Developed a fully packaged integrated SnO2 thin film sensor device with a built-in micro-heater for H2S gas detection exhibiting fast response speed due to novel dispersal of catalyst in nano-scale range.

Exploited successfully the spillover mechanism of distributed CuO catalysts on SnO2 surface along with activation of enhanced oxygen activity for developing an efficient gas sensor with three order high sensitivity.

=Countries visited=

USA: Attended and presented papers in IEEE 2002 Sensors (Orlando, Florida), Nano-2002 (Orlando, Florida), and IMCS - 9 (Boston, Massachussetts) conferences

Canada:	Attended and presented a paper at IEEE 2003 Sensors conference, Toronto

Australia: Visiting Fellow at the Department of Electronic Materials Engineering, Research School of Physics and Engineering, The Australian National University, Canberra, ACT 0200, Australia from June - December 2009

New Zealand: Attended and presented papers in IEEE 2009 Sensors, Christchurch

=Academic Achievements=

Best Poster award at the Third International Conference on Sensing Technology (ICST 2008) held at Tainan, Taiwan from 30 Nov. – 3 Dec. 2008

Nominated for the Best Conference Paper Award during IEEE Sensors 2002 conference held from 11-14 June, 2002 in Orlando, Florida, USA.

Received the best paper award titled “Sensing properties of evaporated and sputtered SnO2-CuO thin films”— at the 6th National Seminar on Physics and Technology of Sensors (NSPTS-6) held at Thapar Institute of Engineering and Technology, Patiala, Punjab from 4-6th March 1999.

Received certificate of merit from Delhi Administration, Govt. of India for outstanding performance in the secondary board examination.

=Research and Academic Activities=

Integrated piezoelectric ZnO film (3m thick) with MEMs structure of CEERI, Pilani for development of acoustic sensors that have been technically qualified by VSSC (ISRO), INDIA for use in PSLV-C9 flight in piggyback mode.

Tackling the “issues & concerns” of a leading SAW device manufacturing company, EPCOS AG, Germany, regarding temperature stability of their SAW devices (Aug.2007- Contd.)

Reviewed several papers for various International Journals.

Member of Editorial board for the International Journal, “Sensors and Transducers”.

Life member of Indian Association of Physics Teachers (IAPT)

=Part of the organizing Committee for the following events=

Coordinator for “WikiEd 2009”: Workshop on Open Educational Resources held at Acharya Narendra Dev College from 9 – 13 January 2009.

Coordinator for “WikiEd 2008”: Workshop on Open Educational Resources, held at Acharya Narendra Dev College from 3, 4 and 6 October 2008.

Co-Coordinator of the Structured Workshop on “New Frontiers in Radiation Sciences” for undergraduate students of University of Delhi, held from 16 June – 4 July 2008, organized by INMAS and University of Delhi

Indo - Australia Symposium on Multifunctional Nanomaterials and Nanostructures Applications (MNNA 2007), University of Delhi from 19 - 21 December 2007

National Seminar on Multifunctional Nanomaterials & Nanostructures Applications (MNNA 2006) Department of Physics and Astrophysics, University of Delhi from 23 - 24 December 2006.

International Conference on Physics Education 2005 (ICPE 2005) World View on Physics Education: Focusing on Change held at Vigyan Bhavan (21 to 26 August 2005)

INFOSYS Workshop for undergraduate Teachers from Northern region of India(28 Dec.04 to 2 Jan.05)

=E-Learning/Courses=

Participated in “Advanced Workshop on Developing Self Learning Instructional Multimedia Materials” held at CIET-NCERT from 20 – 24 December 2008.

Active member of the University of Delhi’s Pilot project on Creating e-Learning Materials in Physics

Attended “Supported Blended Learning Workshop” organized at University of Delhi by Open University, UK and Campus of Open Learning (COL) from 31 May – 2 June 2007.

Resource Person at Bamboo and Rattan O.D.L. Course Development workshop organised at School of Agriculture, IGNOU, 21- 23 July 2006. The partners of the workshop were IGNOU-INBAR-COL-CIBART-ANDC.

Attended workshop on Content Creation for e-Learning (Enabling Teaching and Learning) held at University of Delhi South Campus, 25 – 27 August 2006

Actively involved in the organization of refresher course in Computer Applications in Physical Science, 17 February to 9 March 2006, at CPDHE, University of Delhi.

Actively involved in preparing reports in the UGC-ASC Orientation Course, 28 December 2006 to 24 January 2007, at CPDHE, University of Delhi.

=List of Publications=

International / National Refereed Journals / Proceedings:

1.“Enhanced oxygen adsorption activity by CuO catalyst clusters on SnO2 thin film based sensors”- Arijit Chowdhuri, Divya Haridass, K. Sreenivas and Vinay Gupta Proc. of International Conference on Sensing Technology (ICST) 2008, Tainan, Taiwan Nov 30 - Dec 03, 2008, pp 553 - 556.

2.“Enhanced LPG response characteristics of SnO2 thin film based sensors loaded with Pt clusters”- Divya Haridass, Arijit Chowdhuri, K. Sreenivas and Vinay Gupta Proc. of International Conference on Sensing Technology (ICST) 2008, Tainan, Taiwan Nov 30 - Dec 03, 2008, pp 418 - 421.

3.“Trace level H2S gas detection with sputtered SnO2 thin films loaded with CuO nanoparticles ”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas Proc. of Indo-Australia Symposium on Multifunctional Nanomaterials, Nanostructures and Applications (MNNA 2007), University of Delhi, Delhi – 7, INDIA, 19 - 21 Dec. 2007, P – 133

4.“Role of CuO nanoparticles in enhanced H2S gas sensing characteristics on SnO2 thin films”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas Proc. of National Seminar on Multifunctional Nanomaterials, Nanostructures and Applications (MNNA 2006), Dept.of Physics & Astrophysics, Univ. of Delhi, Delhi – 110 007, INDIA, 22 - 23 December 2007, P – 79

5.“Influence of CuO catalyst in the nano-scale range on SnO2 surface for H2S gas sensing applications”- Vinay Gupta, S. Mozumdar, Arijit Chowdhuri and K. Sreenivas, Pramana Vol. 65 No. 4, October 2005, pp 647-652.

6.“Response speed of SnO2 based H2S gas sensors with CuO nanoparticles” - Arijit Chowdhuri, Vinay Gupta, R. Kumar, P. K. Patanjali, S. Mozumdar and K. Sreenivas Applied Physics Letters 84 (7) (2004) pp 1180-1182.[[Media:APL.ogg]]

7.“Fast response H2S gas sensing characteristics with ultra-thin CuO islands on sputtered SnO2”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas, Sensors & Actuators B, 93, (2003) 572 - 579.

8.“Thickness dependence effects of CuO islands on SnO2 in the nano-scale range for H2S gas sensing applications”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas Reviews on Advanced Materials Science (RAMS) 4 (1) (2003) pp 75-78.

9.“Enhanced catalytic activity of ultra-thin CuO islands on SnO2 thin films for fast response H2S gas sensors”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas, IEEE Sensors Journal, Vol. 3 (6) (Dec. 2003) 680-686.

10.“H2S gas sensing mechanism of SnO2 films with ultrathin CuO dotted islands”- Arijit Chowdhuri, Parmanand Sharma, Vinay Gupta, K. Sreenivas and K.V. Rao Journal of Applied Physics, 92 (4) (2002) 2172 - 2180.

11.“Enhanced catalytic activity of ultra-thin CuO islands on SnO2 thin films for fast response H2S gas sensors”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas, Proc. of IEEE Sensors 2002 Conference, Orlando, Florida, USA, 11-14 June 2002, pp 430-434

12.“Ultra-thin CuO film on SnO2 in the nano-scale range for H2S gas sensing”- Arijit Chowdhuri, P. Sharma, Vinay Gupta, K. Sreenivas & K. V. Rao Proc. of NANO-2002 Intl. Conference, Orlando, Florida, USA 16-20 June, 2002, No. PC4.6

13.“Fast response H2S gas sensing characteristics with ultra-thin CuO islands on sputtered SnO2”- Arijit Chowdhuri, Vinay Gupta and K. Sreenivas, Proc. of Intl. Meeting on Chemical Sensors 9 (IMCS-9), Boston, USA, 7-10 July, 2002, pp 149.

14.“Improved response of H2S gas sensors with CuO nanoparticles on SnO2 film”- Arijit Chowdhuri, Vinay Gupta, R. Kumar, P. K. Patanjali, S. Mozumdar and K. Sreenivas, Proc. of IEEE Sensors 2003 Intl. Conference held in Toronto, Canada from 22-24 October 2003.

National Conferences

15.‘Integration of nano-scale catalysts with SnO2 films for enhanced H2S and LPG sensing’- Divya Haridas, Manish Verma, Arijit Chowdhuri, K. Sreenivas, and Vinay Gupta Proc. of NANO SENSORS 2008, National Workshop on Nano Sensors and Devices, IIT Delhi, 22 – 23 December 2008, Delhi pp - 81.

16.“LiNbO3 thin film SAW devices with zero TCD” - Monika Tomar, Arijit Chowdhuri, Vinay Gupta and K. Sreenivas, NSFD-XII, Poster presentation, Indian Institute of Science (I.I.Sc), Bangalore, INDIA in Dec 2003.

17.“Studies on catalyst-semiconductor interaction mechanisms using CuO-SnO2 thin films”- Arijit Chowdhuri and K. Sreenivas, 8th National Seminar on Physics and Tech. of Sensors (NSPTS-8) held at IGCAR, Kalpakkam, Tamil Nadu, 27th Feb-1st March 2001, C 33.1 to C 33.3.

18.“Swift Heavy Ion bombardment effects on the micro-structure of CuO-SnO2 films used for gas sensing applications”- Arijit Chowdhuri and K. Sreenivas, Mini-user workshop on Swift heavy Ions held at Nuclear Science Centre, Delhi on 16th June 2000.

19.“Sensing of corrosion rates of Ag in H2S using surface plasmon resonance technique”- N. Mehan, P. Sharma, Arijit Chowdhuri & A. Mansingh, 6th National seminar on Phys. and Tech. of sensors (NSPTS-6), Thapar Institute of Engg. and Tech., Patiala, Punjab, 4-6th March 1999, C 19-1 to C 19-6.

20.“Sensing properties of evaporated and sputtered SnO2-CuO thin films”- Arijit Chowdhuri, P. Sharma, Vinay Gupta & K. Sreenivas, 6th National Seminar on Physics and Tech. of Sensors (NSPTS-6), Thapar Institute of Engg. and Tech., Patiala, Punjab, 4-6th March 1999, C 18-1 to C 18-7.

21.“Role of interstitial oxygen on the orientation of sputtered ZnO thin films” - Vinay Gupta, Arijit Chowdhuri and Abhai Mansingh, Xth National Symposium on Ferroelectrics and Dielectrics (NSFD-X) held in IIT Madras from 16-18th December 1998.

=Citations=

Coming soon!

=Picture Gallery=

Confessions of a trigger-happy academic 

Have Camera, Will Click

Loose Cannon
/My sandbox/