Ramesh Vasan

Contact:
2285 Bell Engineering center
University of Arkansas
Fayetteville
AR, USA -72703
Email: rvasan@email.uark.edu
Phone: +14794225775
Education:
Doctorate, Electrical Engineering (Present)
University of Arkansas, USA

Master of Science, Electrical Engineering (May 2013)
University of Arkansas, USA
Master Thesis Title: Intermediate band solar cells based on InAs quantum dots embedded in InGaAs quantum well

Bachelor of Engineering, Electronics & Instrumentation Engineering (May 2010)
Government College of Technology, Coimbatore, India

Appointments:
• Aug 2015 – Present: Instructor, Department of Electrical Engineering, University of Arkansas, USA
Courses taught: Electric Circuits I, Electric Circuits II and Electric Circuits & Machines.
• Jan 2014 – Aug 2015: Graduate Teaching assistant, Department of Electrical Engineering, University of Arkansas, USA
• Aug 2011 – Present: Research Assistant, Optoelectronics Research Lab, University of Arkansas, USA

Research Interests:
Fabrication and characterization of all-inorganic quantum dot light emitting devices. Modelling the carrier transport in all-inorganic quantum dot light emitting devices using photoluminescence and time resolved photoluminescence spectroscopies.
Past research: Design, simulation, Fabrication and Characterization of high efficiency III-V intermediate band solar cells for space applications. Study of low and high refractive index dielectric materials for solar cell anti reflection coating.

JOURNAL PUBLICATIONS:
1. “Strong interband transitions in InAs quantum dots solar cell”, J.Wu, Y. F. M. Makableh, R. Vasan, M. O. Manasreh, B. Liang, C. J. Reyner, and D. L. Huffaker , Applied Physics Letters 100, 051907 (2012).
2. “Enhancement of the performance of InAs quantum dots solar cell by surface modification using Poly-L-Lysine homopolymers,” Y.F.M. Makableh, R.Vasan, M.O.Manasreh, Applied physics letters 102, 051904 (2013)
3. “Enhanced Photocurrent due to Interband Transitions from InAs Quantum Dots Embedded in InGaAs Quantum Well Solar Cells,” R.Vasan, Y.F.M. Makableh, J.C. Sarker, M.O.Manasreh, MRS- Spring 2013 proceedings, vol. 1551 (2013).
4. “Enhanced response in InAs quantum dot in a quantum well solar cells by anti-reflection coatings,” Y. F. Makableh, R. Vasan, J. C. Sarker, S. Lee, M. A. Khan and M. O. Manasreh, MRS- Spring 2013 proceedings, (2013)
5. “Enhancement of GaAs solar cell performance by using a ZnO sol–gel anti-reflection coating” Y. F. Makableh, R. Vasan, J. C. Sarker, A.I.Nusir, S. Seal and M. O. Manasreh, Solar Energy materials and solar cells, vol. 123 (2014).
6. “Enhanced performance of surface modified InAs quantum dots solar cell by a sol–gel grown tantalum pentoxide antireflection coating” J. C. Sarker, R. Vasan, Y. F. Makableh, S. Lee A.I.Nusir, and M. O. Manasreh, Solar Energy materials and solar cells, vol. 127 (2014).
7. “All inorganic quantum dot light emitting devices with solution processed metal oxide transport layers” R.Vasan, H.Salman, M. O. Manasreh, MRS Advances, 1(4), pp. 305–310, 2016.
8. “Comparison of anti-reflective properties of single layer anatase and rutile TiO2 on GaAs based solar cells” R.Vasan, Y. F. Makableh, M. O. Manasreh, MRS Advances, 1(14), pp. 957–963, 2016.
9. “Broadband Nanostructured Antireflection Coating for Enhancing GaAs Solar Cell Performance” J. C. Sarker, Y. F. Makableh, R. Vasan, S. Lee, M. O. Manasreh, and M. Benamara, IEEE Journal of Photovoltaics, 2016

CONFERENCE PRESENTATIONS:
1. Presented “InAs based Intermediate Band Solar cells” at the National Science Foundation- EPSCoR Annual meet 2012.
2. Presented “Enhanced Photocurrent due to Interband Transitions from InAs Quantum Dots Embedded in InGaAs Quantum Well Solar Cells” at the Materials Research Society-Spring 2013, San Francisco, CA, USA.
3. Presented “Synthesis and Characterization of ZnO/MgF2 bilayer antireflection coating for GaAs solar cells” at the National Science Foundation- EPSCoR Annual meet 2013, Little Rock, AR, USA.
4. Presented “Functionalization of nanomaterials for photovoltaics” at the AR NASA-EPSCoR Conference, 2016, Hot Springs, AR, USA.
5. Presented “Synthesis and characterization of nickel oxide thin film and nanoparticles for hole transport in an all-inorganic colloidal quantum dot LED” at the 76th Physical Electronics Conference, Fayetteville, AR, USA