Email:  MSOHEL@HOSTOS.CUNY.EDU

Office Number:507L

Office Tel:718-518-4131

Courses Teaching:
General Chemistry
Environmental Science
Nanotechnology

Research Interest:

Nanotechnology and Nanomaterial: Synthesis and characterization of semiconductor nanomaterials (quantum dots)  for solar cells and optoelectronic devices. Currently involved in the colloidal synthesis of nanoparticles and their characterization using UV-Vis, Atomic Force Microscopy (Nanosurf Easy Scan), TEM, Raman and XRD.

Also, significant experience and interests in the growth and characterization of II-VI semiconductor nanomaterials for optoelectronic devices grown by Molecular Beam Epitaxy (MBE).
 

Recent Scientific Publications:
 

  1. Size controlled synthesis of monodisperse PbTe quantum dots using oleylamine as the capping ligand, Yi Pan, Hanying Bai, Liang Pan, Yadi Li,ab Maria C. Tamargo, Mohammad Sohel and John R. Lombardi, J. Mater. Chem., 22, 23593 (2012).
  2. Studies of surface oxidation in ultra-small magic-sized white light-emitting CdSe nanocrystals using X-Ray photoelectron spectroscopy,  M. Sohel, L. Pan, M. C. Tamargo,  Phys. Status Solidi C 9, No. 8–9, 1776–1778 (2012).
     
  3.  “Physical and Optical properties of size selective CdTe nanocrystals”- Alice Fok, Jorge Morales and Mohammad Sohel, Phys. Status Solidi. C 7, No. 6, 1520–1522 (2010).
     
  4. “ZnxCd1–xSe/Znx′Cdy′Mg1–x′–y′ Se multi-quantum well structures for intersubband devices grown by MBE”- H. Lu, A. Shen, M. Muñoz, M. N. Perez-Paz, M. Sohel,  S. K. Zhang, R. R. Alfano and M. C. Tamargo, Phys. Status Solidi (b). 243, No. 4, 868–872 (2006).
     
  5. “Optical Characterization and Evaluation of the Conduction Band Offset for ZnCdSe/ZnMgSe Quantum Wells Grown on InP(001) by MBE”- Mohammad Sohel, Xuecong. Zhou, Hong Lu, M. Noemi Perez Paz, Maria Tamargo, Martin Munoz, J. Vav. Sci. Technol. B, 23, 1209 (2005).
     
  6. “Single layer and stacked CdSe self-assembled quantum dots with ZnCdMgSe barriers for visible light emitters”- M.N. Perez-Paz, X. Zhou, M. Munoz, M. Sohel, Hong Lu, Francisco Fernandez and Maria C. Tamargo, J. Vav. Sci. Technol. B, 23, 1236 (2005).
     
  7. “Molecular Beam Epitaxial growth and characterization of zincblende ZnMgSe on InP (001)”- Mohammad Sohel, Martin Munoz, Maria C. Tamargo, Appl. Phys. Lett., 85, 2794, (2004).
     
  8. “CdSe self-assembled quantum dots with ZnCdMgSe barriers emitting throughout the visible spectrum”- M. N. Perez-Paz, X. Zhou, M. Munoz, H. Lu, M. Sohel, M. C. Tamargo, Fleumingue Jean-Mary and Daniel L. Akins, Appl. Phys. Lett., 85, 6395, (2004).
     
  9. M. Sohel, M. N. Perez-Paz, H. Lu, X. Zhou, M. Munoz and M. C. Tamargo: Wide Bandgap ZnMgSe alloys and ZnCdSe/ZnMgSe Quantum Wells for Intersubband Devices, 12th International Conference on II-VI Compounds September 12 - 16, 2005, Warsaw, Poland.
     
  10. H. Lu, M. N. Perez-Paz, M. Sohel, A. Shen, X. Zhou, M. C. Tamargo, S. K. Zhang and R. R. Alfano: Study of ZnCdSe/ZnCdMgSe Multi-Quantum Well structures prepared by Molecular Beam Epitaxy, 12th International Conference on II-VI Compounds, Sept. 12 - 16, 2005, Warsaw, Poland.
     
  11. M. N. Perez-Paz, H.Lu, M. Sohel, X. Zhou, A. Shen, M. C. Tamargo: Growth And Vertical Correlation Of CdSe Stacked Quantum Dots On ZnCdMgSe Barriers Varying Spacer Thickness And Mg Content, 12th International Conference on II-VI Compounds September 12 - 16, 2005, Warsaw, Poland.
     
  12. Mohammad Sohel, Martin Munoz, Maria C. Tamargo, “ZnMgSe alloys lattice matched to InP (001) grown by Molecular Beam Epitaxy for inter subband devices and near UV emitters”
    - 22nd North American Molecular Beam Epitaxy, Conference, October 10 – 13 2004, Banff, Canada. Undergraduate Students: Carlos Constante (Electrical Engineering, Hostos CC, 2008); 2. Siba Safiyano (ChemE, Hostos CC, 2009); 3. Joseph Wokpetah (ChemE, Hostos CC, 2009); 4. Noah Lawson (ChemE, Hostos CC, 2009 -2010); 5. Qudus Lawal (ChemE, Hostos CC, 2009-2010); 6. Nathan Latchman (Hostos CC, Civil Eng., 2009-2010); 7. Alice Fok (2009, Stuyvessant High School, Now in Univ. of Chicago); 8. Rosa Pena (Manhattan Math and Science High School Now in NYU, 2008-2010); 9. Jubril Lawal (Hostos CC, 2010-2012); 10. Emily Fernandez (2011-2012); 11. AbdulRahman Alsayed (CSTEP, 2012).


Awards and Honors

  • National Science Foundation’s Office of Cyber Infrastructure- CI-TEAM "CI-TEAM Demonstration Project: Enhancing STEM Education  through Faculty Training in the Use of Cyberinfrastructure," (9/2011- 8/2013)                                               $249,734
  •  National Science Foundation’s Nanotechnology Undergraduate Education Award in collaboration with City College: (2010 -2012) “Integrating Nanotechnology in CUNY Community Colleges”                                                                                    $200,000
  • Integrated Research Strategies: (2010) : “Integrating Nanotechnology in General Chemistry courses at Hostos”,  National Science Foundation-LSAMP                           $3000
  • NIH: Howard Hugh Medical Institute sub grant from City College for PLTL $10,000 (2008)     


PSC-CUNY Research Awards:

  • PSC-CUNY Award (Cycle 39):  “Wide band gap II-VI semiconductor materials for quantum cascade lasers”. (2007-2008)
                           
  • PSC-CUNY Award (Cycle 40): “Band offset Determination of CdSe nanocrystals using Si and TiO2 for highly efficient solar cells”           


Confetrence  Co-Chair/ Facilitator:

  • Conference Co-Chair: Urban University Nanotechnology Conference 2012. Bronx Community College, March 26, 2012
  • Conference Co-Chair: Getting Started with PLTL: A Chautauqua Workshop (Peer-Led Team Learning Regional Conference), New Jersey City University, New Jersey, June 28-30, 2010.


Conference Presentations:

  1. Oral Presentation: CTL Professional Development Spa Day: “IRB Dymestified” , May 30, 2012, Hostos CC, Bronx, New York.
     
  2. Participant/ Training: 7th Annual Institutional Review Board Educational Conference, May7-8, 2012, Columbia University, New York.
     
  3. NUE: Integrating Nanotechnology Education at CUNY Community Colleges
    Vicki Flaris, Mohammad Sohel, Ilona Kretzschmar; 2011 Nanoscale Science and Engineering Conference, Arlington, Virginia, December 5-7, 2011.
     
  4. M. Sohel, M. C. Tamargo, L. Peng, S. J. Rosenthal, X-Ray photoelectron spectroscopy of white light emitting magic sized CdSe nanocrystals, 15th International conference on II-VI Semiconductors, Mayan Riviera, Mexico, August 21-26, 2011.
     
  5.  Y. Pan, L. Pan, M. C. Tamargo, J. R. Lombardi, M. Sohel, Open air and simple method to synthesize narrowly distributed and size tunable PbSe nanocrystals, 241st ACS National Meeting, Anaheim, CA, (March 27-31, 2011).
     
  6. Synthesis and Characterization of CdSe nanocrystals, Qudus Lawal, Liang Pan, Maria Tamargo and Mohammad Sohel, 2010 Urban University Conference, Brookhaven National Laboratory, April 23-24, 2010.
     
  7.  Rosa Pena, Maria Tamargo and Mohammad Sohel, Optical properties of CdSe nanocrystals, 11th Annual Science Symposium, Advance Science Research Center at Manhattan Center for Science and Mathematics, May 20, 2010.
     
  8.  M. Sohel, Francisco Fernandez, M. C. Tamargo and O.  Maksimov, Beryllium chalcogenide alloys for optoelectronic and photovoltaic devices, 14th International conferences onII-VI compounds, St. Petersburg, Russia, August 23 -28, 2009.
     
  9. Alice Fok, Jeorge Morales and Mohammad Sohel, Synthesis and Characterization of CdTe Quantum Dots for In-Vivo Imaging, 14th International conferences onII-VI compounds, St. Petersburg, Russia, August 23 -28, 2009.
     
  10. “National Consortium on Hispanic Engineers and Scientists” – that was held on November 14-15, 2007 at U.S. Department of Energy, Washington D. C.

Undergraduate Students: Carlos Constante (Electrical Engineering, Hostos CC, 2008); 2. Siba Safiyano (ChemE, Hostos CC, 2009); 3. Joseph Wokpetah (ChemE, Hostos CC, 2009); 4. Noah Lawson (ChemE, Hostos CC, 2009 -2010); 5. Qudus Lawal (ChemE, Hostos CC, 2009-2010); 6. Nathan Latchman (Hostos CC, Civil Eng., 2009-2010); 7. Alice Fok (2009, Stuyvessant High School, Now in Univ. of Chicago); 8. Rosa Pena (Manhattan Math and Science High School Now in NYU, 2008-2010); 9. Jubril Lawal (Hostos CC, 2010-2012); 10. Emily Fernandez (2011-2012); 11. AbdulRahman Alsayed (CSTEP, 2012).