Research Areas
Semiconductor Nanomaterials
Optoelectronics
Electrocatalysis
Biosketch
Dr. Sameer Sapra is interested in the development of materials for energy conversion, with photovoltaics and photocatalysis being the main forte. He obtained his doctorate in chemistry from the Indian Institute of Science, Bangalore, working with Prof. D.D. Sarma on the electronic and optical properties of semiconductor nanocrystals in 2004. After completing his Ph.D., he was awarded the Alexander von Humboldt fellowship to carry out research on the luminescence properties of quantum dots at the Ludwig Maximilian University in Munich. From there, he joined the research group of Prof. Dr. Alexander Eychmueller in Dresden. After researching for three years on the luminescence properties of quantum dots, Sameer moved back to India and joined the Indian Institute of Technology where he currently works on the various aspects of nanomaterials, his interests ranging from basic size and shape dependent studies, synthesis of new materials such as those based on transition metal dichalcogenides and perovskites, light-emitting materials, photovoltaic devices and photocatalytic applications including hydrogen and oxygen evolution reactions. Along with research, he teaches various courses in Physical Chemistry and Materials Chemistry and mentors postdoctoral fellows, Ph.D., master's and bachelor's students.
Recent Publications
- Efficient Near-Infrared Luminescence with Broad-Band Sensitization in Mo4+−Er3+ Co-Doped Cs2ZrCl6 Vacancy Ordered Double Perovskites Shubham Kumar, Raman Singh Lamba, Rachna Singh, Varsha Jha, Jyoti Yadav, Sameer Sapra Small 21, e07964 (2025).
- Enhanced Emission in Core@Shell Heterostructure of 3D Halide Double Perovskites Rachna Singh, Ajeet Singh, Gauri Sharma, Nikhil Singh, Pralay K Santra, Dibyajyoti Ghosh, Sameer Sapra Angew. Chem. Int. Ed. 64, (2025).
- Electron Redistribution Assisted Enhanced Hydrogen Evolution Activity in NbSe2-NiSe Nanoheterostructures Varsha Jha, Ankita Kumari, Md Samim Hassan, Shubham Kumar, Reetika Tamang, Jyoti Yadav, Dibyajyoti Ghosh, Sameer Sapra J. Mater. Chem. A 13, 34761 (2025).
- Interface Engineered MoSe2-Co9S8 Nanoheterostructures with Enhanced Charge Storage Performance for Supercapacitors Sahil Singh, Javed Muhommad, Md. Samim Hassan, Raman Singh Lamba, Varsha Jha, Priyesh Yadav, Sasanka Deka, Sameer Sapra Small 21, 2408276 (2024).
- Ultrafast Dynamics of Self Trapped Excitons in Cs2AgInCl6:Al3+ Double Perovskite Nanocrystals Rachna Singh, Ajeet Singh, Shubham Kumar, Sameer Sapra Nano Lett. 24, 6797 (2024).
- Prevention of Ion Migration in Lead Halide Perovskites upon Plugging the Anion Vacancies with PbSe Islands Swati Khurana, Priyesh Yadav, Priyadharsini Natesan, Md Samim Hassan, Deepak Kumar Pradhan, Sameer Sapra Chem. Commun. 60, 6031 (2024).
- Chemical Control of Optical Band Gap and Magnetic Properties in Fe alloyed Na-In Halide Layered Perovskite Priyesh Yadav, Swati Khurana, Deepika Gill, Atiqur Rahman, Saswata Bhattacharya, Sameer Sapra Chem. Mater. 36, 5456 (2024).
- Broad Dual Emission from Cs2Zr1-xMoxCl6: Enhancing the NIR Emission in Lead-Free Vacancy Ordered Double Perovskites Shubham Kumar, Raman Singh Lamba, Sanchi Monga, Varsha Jha, Rachna Singh, Suvadip Saha, Saswata Bhattacharya, Sameer Sapra Chem. Mater. 36, 4561 (2024).