People » Saiful Khondaker

Dr. Khondaker received his Ph.D. degree in 1999 from Cavendish Laboratory of the University of Cambridge under the supervision of Professor Michael Pepper FRS. After finishing the Ph.D., Dr. Khondaker worked first as an assistant professor and then as an associate professor at the University of Dhaka, Bangladesh from 1999 to 2001. In 2001, he started a postdoctoral research fellowship at the University of Texas at Austin, where he worked on the nanoscale device fabrication and characterization. From 2003 to 2005, he worked as an assistant director at the center for nano and molecular science and technology at the University of Texas at Austin. He joined UCF in 2005.

My research group is interested in the fabrication of nanoscale electrical and optical devices consisting of low dimensional chemical nanostructures such as nanoparticles, nanowires,  nanotubes, and molecules and investigation of their electronic transport properties. Nanoscience and nanotechnology deals with the study, development, and application of materials, devices, and systems with dimensions in the 1–100 nm range. The physical, chemical, and biological properties of materials at the nanoscale differ in fundamental and valuable ways from the properties of bulk matter. The many novel phenomena observed at the nanoscale are primarily the consequence of the appearance of quantum effects that begin to play an important role at length scales approaching a few nanometers. Our research effort is directed toward creating and characterizing improved materials, devices, and systems at the nanoscale that exploit these new properties. Specific areas of research interest includes: (i) Controlled assembly of carbon nanotubes and their device properties, (ii) Beyond Moors Law: Single electron transistors (iii) Chemically functionalized graphene: fundamentals and applications and (iv) Novel techniques for fabricating organic electronic and photovoltaic devices. For more detail, please see our group website

1.  Daeha Joung and Saiful I. Khondaker, Efros-Shklovskii variable range hopping in reduced graphene oxide sheets of varying carbon sp2 fraction, Physical Review B, 86, 235423 (2012).

2. Biddut K. Sarker, and Saiful I. Khondaker, Thermionic Emission and Tunneling at Carbon Nanotube-Organic Semiconductor Interface. ACS Nano, vol 6, 4993 (2012)

3. Biddut K. Sarker, and Saiful I. Khondaker, High Performance Short Channel Organic Transistors using Densely Aligned Carbon Nanotube Array Electrodes, Appl. Phys. Lett. 100, 023301 (2012)

4. Biddut K. Sarker, Shashank Shekhar and Saiful I. Khondaker, Semiconducting enriched carbon nanotube align arrays of tunable density and their electrical transport properties. ACS Nano 5, 6297 (2011).

5. Daeha Joung, Lei Zhai, and Saiful I. Khondaker, Coulomb blockade and hopping conduction in graphene quantum dots array, Phys. Rev. B 83, 115323 (2011).

6.  Shashank Shekhar, Paul Stokes, and Saiful I. Khondaker, Ultra-high density alignment of carbon nanotubes array by dielectrophoresis, ACS Nano, vol 5, 1739 (2011).

7. Daeha Joung, A. Chunder, Lei Zhai and Saiful I. Khondaker,  Space charge limited conduction with exponential trap distribution in reduced graphene oxide sheets. Applied Physics Letters 97

 8. Surajit Ghosh, Biddut K. Sarker, Anindarupa Chunder, Lei Zhai, and Saiful I. Khondaker, Position dependent photodetector from large area reduced graphene oxide thin films. Applied Physics Letters 96, 163109 (2010).

9. Paul Stokes and Saiful I. Khondaker, Evaluating defects in solution processed carbon nanotube devices via low temperature transport spectroscopy, ACS Nano Vol 4, 2659 (2010)

10. Paul Stokes and Saiful I. KhondakerControlled fabrication of single electron transistors from single-walled carbon nanotubes, Appl. Phys. Lett. 92, 262107 (2008).



  •  Research Incentive Award 2010, University of Central Florida
  • NSF CAREER Award, 2008-2014
  • Junior Associate Member, 2001-2006, International Centre for Theoretical Physics, Trieste, Italy
  • Scholarship of the Association of Commonwealth Universities, UK, 1994-1997
  • Scholarship from the International Center for Theoretical Physics, Trieste, Italy, 1992-1993
  • Raja Kali Narayan Scholarship, 1990 (most prestigious award of Dhaka University given for securing highest score for the graduating class of 1990)


Oversees the following Graduate Students