IIEST, Shibpur

Indian Institute of Engineering Science and Technology, Shibpur

(Formerly Bengal Engineering and Science University, Shibpur)

Empowering the nation since 1856

Dr. Mallar Ray

Assistant Professor

Dr. M. N. Dastur School of Materials Science and Engineering

Dr. Mallar Ray joined the institute in 2003

Academic Qualifications

  • Ph.D. (BESU, Shibpur, 2010)
  • M.Sc. in Environmental Sciences (University of Nottingham, 2003)
  • M.Sc. in Physics (University of Calcutta, 1996)
  • B.Sc. (University of Calcutta, 1994).

Awards and Honours

  • G. C. Jain Memorial Prize for best PhD thesis in Materials Science, by Materials Research Society of India in 2011
  • Chevening/Commonwealth Scholarship, by Foreign and Commonwealth Office, 2002-2003.
  • Developing Solutions Scholarship by University of Nottingham, 2002.



  1. Office: +91 (0) 33 2668 4561/62/63 (ext-638); 033 2668 8140 (Direct)
  2. Residence: +91 (0) 33 2343 1926


  1. Office: Room No. MST 203, Dr. M. N. Dastur School of Materials Science and Engineering, Indian Institute of Engineering Science and Technology, Shibpur, Howrah: 711103
  2. Residence: 42/28 New Ballygunje Road, Calcutta: 700039
  3. E-Mail: mray@matsc.iiests.ac.in, mallar.r@gmail.com

Research Areas

  • Nanomaterials
  • Optical and transport properties

Completed Projects

  • “Study of Luminescence and Structural Properties of Mechanically Milled Silicon Nanocrystals and Electro-chemically Prepared Nanostructured Porous Silicon” Sponsored by University Grants Commission, completed in 2010

Recent Publications (Last 10)

  1. U. Ghanta, M. Ray, N. R. Bandyopadhyay and S. M. Hossain, “Superliner Photo Response in Colloids of Silicon Quantum Dots” INT. J. INNOVATIVE RES. SCI. ENG. TECHNOL. 3, 15-18, 2015.
  2. A. Jana, S. Ghosh, P. S. Devi, N. R. Bandyopadhyay, and M. Ray*, “Tunable Charge Transport through n-ZnO Nanorods on Au coated Macroporous p-Si” J. MATER. CHEM. C, 2, 9613 - 9619, 2014.
  3. T. S. Basu and M. Ray* “Charge Transfer Induced Encapsulation of Si Quantum Dots by Atomically Larger and Highly Lattice-Mismatched Au Nanoparticles” J. PHYS. CHEM. C, 118, 5041–5050, 2014.
  4. T. S. Basu and M. Ray* “Extraordinary electron and phonon transport through metal-semiconductor hybrid nanocomposite: decoupling electrical and thermal conductivities for thermoelectric application” INT. J. NANOTECHNOLOGY, 11, 897-909, 2014.
  5. M. Ray*, T. S. Basu, N. R. Bandyopadhyay, R. F. Klie, S. Ghosh, S. O. Raja and A. K. Dasgupta “Highly Lattice-mismatched Semiconductor-Metal Hybrid Nanostructures: Gold Nanoparticle Encapsulated Luminescent Silicon Quantum Dots” NANOSCALE, 6, 2201-2210, 2014.
  6. T. S. Basu, R. Yang, S. J. Thiagarajan, S. Ghosh, S. Gierlotka, and M. Ray* “Remarkable thermal conductivity reduction in metal-semiconductor nanocomposites” APPL. PHYS. LETT., 103, 083115 (5 pages) 2013.
  7. T. S. Basu, S. Ghosh, S. Gierlotka, and M. Ray* “Collective Charge Transport in Semiconductor-Metal Hybrid Nanocomposite” APPL. PHYS. LETT., 102, 053107 (5 pages) 2013.
  8. T. S. Basu, M. Ray*, N. R. Bandyopadhyay, A. K. Pramanick and S. M. Hossain “Performance enhancement of crystalline silicon solar cell by coating with luminescent silicon nanostructures” J. ELECTRON. MATER., 42, 403-409, 2013.
  9. M. Ray*, A. Jana, U. Ghanta, N. R. Bandyopadhyay and S. M. Hossain “Photoluminescence from Oxidized Macroporous Silicon: Nano-Ripples and Strained Silicon Nanostructures” IEEE TRANS. DEVICE MATER. REL., 13, 87-92, 2013.
  10. A. Mandal, M. Ray*, I. Rajapaksa, S. Mukherjee and A. Datta, “Xylene Capped Luminescent Silicon Nanocrystals: Evidence of Supramolecular Bonding” J. PHYS. CHEM. C, 116, 14644−14649, 2012.