Raihana Begum

Postdoctoral Fellow

Now Post Doctoral Fellow at 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.