Behzad Esfandyarpour

Department of Electrical and Computer Engineering

University of Tehran, Tehran, Iran

E-mail: b_esfand@yahoo.com

Education:

M.Sc. Microelectronics, Semiconductor Devices and Materials

University of Tehran, Jan. 2004 – Sept. 2005.

Project: Optical and Electrical Properties of Nanocrystalline metal oxide semiconductors.

Seminar: Two-dimensional ballistic transport in DG (Double Gate)  transistors.

B.Sc. Electrical Engineering, Electronics

University of Tehran, 1998 – 2003.

Project: Fabrication and characterization of Nanocrystalline tin-oxide micro-gas sensors. 

High school Diploma: Allame-Helli School (Administrated by the National Organization for Development of Exceptional Talents), Tehran, Iran, 1997.

RESEARCH INTERESTS: Microelectronics, Nanotechnology and Opto-electronics 

Ø      Photovoltaic solar cells and TCOs

Ø      Metal oxide micro-gas sensors compatible with CMOS processing

Ø      Thin Film Transistors

Ø      MicroEltectroMechanical Systems (MEMS and BioMEMS)

Ø      Modeling and simulation of semiconductor devices

Ø      Nanowire Devices: Physics and Fabrication Processes

WORK EXPERIENCE

June 2001-to date       Research assistant, Thin Film Lab., University of Tehran

- Devising a novel technique for patterning and miniaturization of metal oxide   gas sensors using standard lithography process (compatibility with standard CMOS IC processing).    

- Deposition, characterization and optimization of TCOs (Al doped ZnO and ITO) for solar cell applications.

- Development of a CuO/SnO₂ nanocomposite film for ultra-high sensitive and selective detection of low ppb H₂S gas. 

- Study and realization of ohmic contacts to multicrystalline silicon solar cells (electroless and electroplating methods).

- Fabrication of Thin Film Transistors: Transparent TFTs based on ZnO and nanocrystalline silicon TFTs.

- Growth of ZnO nanowires for gas sensing applications.

- Anisotropic etching of <111> silicon wafers by wet etching.

HONORS

1.       Selected Researcher of Iran among electrical engineering students in the year of 2007. 

2.       Rahman Award- Selected Researcher among Ph.D students of ECE School in the year of 2006.    

3.        Selected Researcher of the Tehran University among all faculties in the year of 2005.

4.       Ranked 2^nd among the engineering students of the Tehran University in the year of 2005.

5.       Chair of Microelectronics & Optoelectronics session, IEEE Canadian conference on Electrical and Computer Engineering, Ottawa Congress Centre, Ottawa, Canada, May 2006. 

SELECTED PUBLICATIONS

1.          B. Esfandyarpour, S. Mohajerzadeh, A. Khodadadi and M. D. Robertson, “Ultra-high sensitive tin-oxide microsensors for H₂S detection”, IEEE Sensors Journal, Vol. 4, NO. 4, August 2004.

2.          B. Esfandyarpour, S. Mohajerzadeh, S. Famini, A. Khodadadi and E. Asl Soleimani, “High sensitivity Pt-doped SnO₂ gas sensors fabricated using Sol-Gel solution on micromachined (100) Si substrates”, Sensors and Actuators B, 100 (2004) 190–194.

3.          B. Esfandyarpour, S. Mohajerzadeh, B. Hekmatshoar, M. Moradi and A. Khodadadi, “SnO₂/Pt microsensors fabricated on micromachined Si(100)”, IEEE Sensors 2003, October 22^nd, Canada, Toronto.

4.          B. Esfandyarpour, S. Mohajerzadeh and A. Khodadadi, “Thin film SnO₂-based gas sensors fabricated using sol-gel method for the detection of ethanol”, 15th IEEE International Conference of Microelectronics, Cairo, Egypt, December 2003.

5.          B. Esfandyarpour, C. Lucas and S. Mohajerzadeh, “An array sensor for detection of reducing gas mixtures”, the Eurosensors XIX conference, Barcelona, Spain, Sep. 2005. 

6.          B. Esfandyarpour, S. Mohajerzadeh, S. Famini, A. Khodadadi and E. Asl Soleimani, “High sensitivity Pt-doped SnO₂ gas sensors fabricated using Sol-Gel solution on micromachined (100) Si substrates”, European Material Research Society, Strasburg, France, June 2003.

7.          B. Esfandyarpour, S. Mohajerzadeh and M. D. Robertson, “H₂S Sensing properties of CuO-SnO₂ Sensors”, 31st Annual Meeting of the Microscopical Society of Canada, May 2004.

8.          B. Esfandyarpour and E. Asl Soleimani, “High Sensitivity Nanocrystalline Tin-Oxide Microsensors with an Average Grain size Less than 6nm”, 12^th Canadian Semiconductor Technology Conference, Ottawa, Ontario, Canada, August 2005.

9.          B. Esfandyarpour and E. Asl Soleimani, “Nanocrystalline Thin Film Tin-Oxide Sensors Compatible With Post CMOS Processing”, 207^th meeting of Electrochemical Society, Canada, Quebec, May 2005.

10.       B. Esfandyarpour and E. Asl Soleimani, “Nanocrystalline Thin Film Tin-Oxide Microsensor array for detection of CO, H₂, H₂S, and Ethanol Gas Mixtures”, IEEE Sensors 2005, Oct.-Nov., Irvin, America.

11.       B. Esfandyarpour, Shams Mohajerzadeh, Abbas-Ali Khodadadi, “Nano-crystalline high sensitivity SnO₂-based sensors on (100) silicon substrates for H₂S and CO sensing”, The 10th International Meeting on Chemical Sensors, Japan, July 2004.

12.       B. Esfandyarpour and E. Asl Soleimani and S. Mohajerzadeh “High sensitivity SnO₂ based gas sensors compatible with post CMOS processing”, to be submitted to IEEE Sensors Journal. 

13.       B. Esfandyarpour and S. Mohajerzadeh, “A Microsensor Array for Detection of Reducing Gas Mixtures Using a Genetic Algorithm Approach”, submitted to Sensors & Actuators B. 

14.       B. Esfandyarpour, F. Nayeri, G. Daneshmand and E. Soleimani, “Effect of annealing on the structure and optical properties of zinc oxide thin films grown by RF sputtering”, European Material Research Society, Nice,  France, May 2006.        

15.       B. Esfandyarpour and E. Asl Soleimani, “ZnO nanowires grown on nanocrystalline tin oxide thin films”, European Material Research Society, nice, France, May 2006.    

16.       B. Esfandyarpour, Y. Mortazavi, A. Behnam and M. Fathipour, “Improved FIBL Effects in FD SOI MOSFETs with High-κ Gate Dielectrics using a Dual Material Gate Dielectric (DMGD) Structure”, 209^th meeting of Electrochemical Society, Denver, USA, May 2006.

17.       B. Esfandyarpour, F. Nayeri and E. Soleimani, “Characteristics of ZnO thin films deposited on PET, kapton and glass substrates by RF-sputtering method”, 1^st International TCOs conference, Crete, Greece, Oct. 2006.

18.       B. Esfandyarpour and E. Asl Soleimani, “Fast Response Microgas Sensors Based on Platinum Nanoclusters Sputtered on Nanocrystalline Tin oxide Thin Films”, IEEE CCECE conference, Ottawa, Canada, May 2006.

19.       B. Esfandyarpour, Y. Mortazavi, A. Behnam and M. Fathipour, “FIBL effects in nano scale SOI devices with high-κ gate dielectrics”, Iran condense matter Phys. Conference 2005, Tehran, Iran.

20.       B. Esfandyarpour, E. Soleimani and S. Mohajerzadeh, “Optical and structural properties of nano-structured SnO₂-CeO₂ composites”, 1^st International TCOs conference, Crete, Greece, October 23-25, 2006.

21.       S. Famini, B. Esfandyarpour and S. Mohajerzadeh, “Anomalous anisotropic etching of <111> and <100> silicon wafers using acidic solutions”, journal of Electrochemical society, 153(7) (2006) G721-G725.

22.       N. Rouhi, B. Esfandyarpour, S. Mohajerzadeh, B. Hekmatshoar and M. Robertson, “Low Temperature High Quality Growth of Silicon-Dioxide Using Oxygenation of Hydrogenation-Assisted Nano-Structured Silicon Thin Films”, 2007 MRS Spring Meeting, San Francisco, USA, April 9-13, 2007.