Raihana Begum

Postdoctoral Fellow

Post Doctoral Fellow



Nanyang Technological University (NTU), Singapore

Research Interests

Perovskite and chalcogenides Quantum dots-their synthesis, surface engineering and application in biology, energy and environment

Selected Publications

  • Redox Tuned Three-color Emission in Double (Mn and Cu) Doped Zinc Sulphide Quantum Dots
    R. Begum and A. Chattopadhyay J. Phys. Chem. Lett. 5, 126−130, (2014)

  • Recovering Hidden Quanta of Cu2+-doped ZnS Quantum Dots in Reductive Environment
    R. Begum, A. K. Sahoo, S. S. Ghosh and A. Chattopadhyay Nanoscale, 6, 953–961, (2014)

  • Surface Ion Engineering for Tuning Dual emission of Ternary Alloyed ZnXCd1-XS Nanocrystals
    S. Bhandari, R. Begum and A. Chattopadhyay RSC Adv. 3, 2885–2888, (2013)

  • Surface Ion Engineering of Mn2+-Doped ZnS Quantum Dots Using Ion-Exchange Resins
    R. Begum, S. Bhandari and A. Chattopadhyay. Langmuir, 28, 9722−9728, (2012)

  • In Situ Reversible Tuning of Photoluminescence of Mn2+- doped ZnS Quantum Dots by Redox Chemistry
    R. Begum and A. Chattopadhyay. Langmuir, 27, 6433–6439, (2011)


  • ​2014 Ph.D. (Chemistry) degree from IIT Guwahati, India
  • 2006 M.Sc. with specialization in Physical Chemistry, Gauhati University, Assam, India
  • 2004 B.Sc. in Chemistry from Cotton College, Gauhati University, Assam, India

Professional Profile

  • ​2015 - present: Postdoctoral Fellow in Solar & Photovoltaics Engineering Research Center, KAUST
  • 2014 - 2015: Project Scientist at the Centre for Nanotechnology, IIT Guwahati
  • 2008 - 2014: Research Fellow, Department of Chemistry, IIT Guwahati, India
  • 2007 - 2008: Project Assistant in Department of Chemistry, Gauhati University, India


  • ​Received "MRSI Young Scientists' Award 2012" at "Young Scientists' Colloquium 2012" organized by Materials Research Society of India (MRSI) Kolkata
  • Qualified national eligibility test (NET) conducted by Council of Scientific and Industrial Research (CSIR), India and awarded Junior Research Fellowship (CSIR-JRF) for pursuing Ph.D. and also eligibility for Lectureship.

Research Interests Keywords

Quantum Dots Material Chemistry

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