The Nano Group @ IIT Delhi

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(Links to the articles are clickable. In case there is trouble downloading them, send an email) Peer-reviewed Journals 2024 Ultrafast Dynamics of Self Trapped Excitons in Cs₂AgInCl₆:Al³⁺ Double Perovskite Nanocrystals Rachna, Ajeet Singh, Shubham Kumar, Sameer Sapra Nano Lett. , (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. , (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. , (2024). Broad Dual Emission from Cs₂Zr_1-xMo_xCl₆: Enhancing the NIR Emission in Lead-Free Vacancy Ordered Double Perovskites Shubham Kumar, Raman Singh Lamba, Sanchi Monga, Varsha Jha, Rachna, Suvadip Saha, Saswata Bhattacharya, Sameer Sapra Chem. Mater. 36, 4561 (2024). Extending the Absorption of Cs2AgBiCl6 Double Perovskite to Near Infra-Red Region by Doping Copper Raman Singh Lamba, Shubham Kumar, Pulkit Dhankar, Priyesh Yadav, Swati Khurana, Varsha Jha, Sahil Singh, Aswathi Konur, Sameer Sapra J. Mater. Chem. C 12, 4792 (2024). Chalcogen Alloying Mediated Electronic Structure Modulation in Ultrathin Nb(S_xSe_(1-x))₂ Nanosheets for Hydrogen Evolution Reaction Varsha Jha, Md Samim Hassan, Ankita Verma, Shubham Kumar, Sahil Singh, Jyoti Yadav, Dibyajyoti Ghosh, Sameer Sapra J. Mater. Chem. A 12, 8561 (2024). High Luminescence in Layered Double Perovskite via Formation of Terbium Intercalation Complex Priyesh Yadav, Swati Khurana, Raman Singh Lamba, Sahil Singh, Varsha Jha, Shubham Kumar, Sameer Sapra Adv. Opt. Mater. 2302456 (2024). 2023 On the unique temperature-dependent interplay of a B-exciton and its trion in monolayer MoSe 2 Durgesh Banswar, Renu Raman Sahu, Rupali Srivatsava, Md Samim Hassan, Sahil Singh, Sameer Sapra, Tapajyoti Das Gupta, Ankur Goswami, Krishna Balasubramanian Nanoscale 16, 2632 (2023). Surface Defects Driven Chemical Transformation of MoSe₂ Nanosheets Sahil Singh, Md. Samim Hassan, Arunima Bhattacharya, Saswata Bhattacharya, Sameer Sapra J. Phys. Chem. C 127, 11298 (2023). Elucidating the Mn²⁺ Dopant Sites in Two-Dimensional Na-In Halide Perovskite Priyesh Yadav, Deepika Gill, Swati Khurana, Raman Lamba, Saswata Bhattacharya, Sameer Sapra J. Phys. Chem. C 127, (2023). Defect Passivation Results in Stability of Cesium Lead Halide Perovskite Nanocrystals Swati Khurana, Md Samim Hassan, Priyesh Yadav, Trupthi Chonamada, Manash R. Das, Pralay Santra, Dibyajyoti Ghosh, Sameer Sapra J. Phys. Chem. C 127, 3355 (2023). Self-Trapped Excitons Mediated Energy Transfer to Sm³⁺ in Cs₂AgIn_(1-x)Sm_xCl₆:Bi Double Perovskite Nanocrystals Rachna, Ajeet Singh, Raman Lamba, Shubham Kumar, Sameer Sapra J. Phys. Chem. C 127, 468 (2023). Nano-Formulation of Antioxidants as Effective Inhibitors of γD-Crystallin Aggregation Amrita Dawn, Vishakha Goswami, Sameer Sapra, Shashank Deep Langmuir 39, 1330 (2023). 2022 Doping Mn²⁺ in hybrid Ruddlesden Popper phase of layered double perovskite (BA)₄AgBiBr₈ Priyesh Yadav, Swati Khurana, Sameer Sapra Nanotechnology 33, 415706 (2022). Insight into morphology dependent charge carrier dynamics in ZnSe-CdS nanoheterostructures Mona Mittal, Jayanta Dana, Franziska Lübkemann, Hirendra N. Ghosh, Nadja C. Bigall, Sameer Sapra Phys. Chem. Chem. Phys. 24, 8519 (2022). Development of magnetic nanoparticle assisted aptamer-quantum dot based biosensor for the detection of Escherichia coli in water samples Chitvan Pandit, Hema Kumari Alajangi, Joga Singh, Akhil Khajuria, Akanksha Sharma, Md. Samim Hassan, Manmohan Parida, Anil Dutt Semwal, Natarajan Gopalan, Rakesh Kumar Sharma, Ashish Suttee, Udit Soni, Bhupinder Singh, Sameer Sapra, Ravi Pratap Barnwal, Gurpal Singh, Indu Pal Kaur Science of the Total Environ. 831, 154857 (2022). Intense green photoluminescence and upconversion-based intrinsic optical bistability in Ho³⁺/Yb³⁺ codoped CaSc₂O₄ and upconversion in Ho³⁺/Yb³⁺ codoped CaY₂O₄ phosphors P Tadge, IR Mart n, SB Rai, S Sapra, TM Chen, V Lav n, RS Yadav, S Ray J. Lumin. 252, 119261 (2022). Green synthesis-mediated silver nanoparticles based biocomposite films for wound healing application Isha Gupta, Abhishek Kumar, Anant Narayan Bhatt, Sameer Sapra, Sonia Gandhi J. Inorg. Organomet. Polymers and Mater. 32, 2994 (2022). Impact of Bifunctional Ligands on Charge Transfer Kinetics in CsPbBr₃-CdSe/CdS/ZnS Nanohybrids Swati Khurana, Md. Samim Hassan, Priyesh Yadav, Dibyajyoti Ghosh, Sameer Sapra J. Phys. Chem. Lett. 13, 2591 (2022). MoSe₂SnS Nanoheterostructures for Water Splitting Ajeet Singh, Jyoti Rohilla, Md. Samim Hassan, Trupthi Devaiah C., Pravin P. Ingole, Pralay K. Santara, Dibyajyoti Ghosh, Sameer Sapra ACS Applied Nano Materials 5, 4293 (2022). 2021 MoSe₂-Cu_2-xS/ GaAs heterostructures based self-biased two colour-band photodetectors with high detectivity S. Sarkar, S. Bera, Md. S. Hassan, S. Sapra, R. Khatri, S. K. Ray J. Phys. Chem. C 125, 10768 (2021). Enhanced Photoluminescence of Gold Nanoparticle-Quantum Dot Hybrids Confined in Hairy Polymer Nanofibers S. Singh, A. Raulo, A. Singh, M. Mittal, A. Horechyy, R. Hubner, P. Formanek, R. K. Srivastava, S. Sapra, A. Fery, B. Nandan ChemNanoMat 7, 831 (2021). Understanding the Efficient Electrocatalytic Activities of MoSe₂ Cu₂S Nanoheterostructures Md. S. Hassan, P. Basera, S. Gahlawat, P. P. Ingole, S. Bhattacharya, S. Sapra J. Mater. Chem. A 9, 9837 (2021). Nanoparticle-Stabilized Perforated Lamellar Morphology in Block Copolymer/Quantum Dot Hybrids S. Singh, A. Horechyy, S. Yadav, P. Formanek, R. Hubner, R. K. Srivastava, S. Sapra, A. Fery, B. Nandan Macromolecules 54, 1216 (2021). Lead-Free Alloyed Double-Perovskite Nanocrystals of Cs₂(Na_xAg_1-x)BiBr₆ with Tunable Band Gap R. S. Lamba, P. Basera, S. Singh, S. Bhattacharya, S. Sapra J. Phys. Chem. C 125, 1954 (2021). 2020 Colloidal lead-free Cs₂AgBiBr₆ double perovskite nanocrystals: Synthesis, uniform thin-film fabrication, and application in solution-processed solar cells R. Ahmad, G. V. Nutan, G. Gupta, U. Soni, S. Sapra, R. Srivastava Nano Res. 14, 1126 (2021). Enhanced Photocurrent owing to Shuttling of Charge Carriers across 4-Aminothiophenol Functionalized MoSe₂-CsPbBr₃ Nanohybrids Md. S. Hassan, P. Basera, S. Bera, M. Mittal, S. K. Ray, S. Bhattacharya, S. Sapra ACS Appl. Mater. Interfaces 12,7317 (2020). Precursor-Mediated Synthesis of Shape-controlled Colloidal CsPbBr₃ Perovskite Nanocrystals and their Nanofiber-Directed Self-assembly A. Chakrabarty, S. Satija, U. Gangwar, S. Sapra Chem. Mater. 32, 721 (2020). 2019 Enhanced photovoltaic performance of Y2O3: Ho3+/Yb3+ upconversion nanophosphor based DSSC and investigation of color tunability in Ho3+/Tm3+/Yb3+ tridoped Y2O3 P. Tadge, R.S. Yadav, P. Vishwakarma, S.B. Rai, T.M. Chen, S. Sapra, S Ray J. Alloys and Comp. , 153230, (2019). Efficient fluorescence quenching of CdSe quantum dots on epitaxial GaAs nanostructures J. Lohani, S. Yadav, R. Tyagi, S. Sapra J. Nanopart. Res. 21, 205 (2019). Band gap engineering in Cs₂(Na_xAg_1-x)BiCl₆ double perovskite nanocrystals R. S. Lamba, P. Basera, S. Bhattacharya, S. Sapra J. Phys. Chem. Lett. 10, 5173 (2019). Fluorescence Resonance Energy Transfer in Multifunctional Nanofibers Designed via Block Copolymer Self-Assembly S. Singh, A. Singh, M. Mittal, R. Srivastava, S. Sapra, B. Nandan Phys. Chem. Chem. Phys. 21, 16137 (2019). MoSe₂ Cu₂S Vertical p-n Nanoheterostructures for High-Performance Photodetector Md. S. Hassan, S. Bera, D. Gupta, S. K. Ray, S. Sapra ACS Appl. Mater. Interfaces 11, 4074 (2019). Effect of pressure and time on the self catalyzed growth of epitaxial GaAs nanostructures by MOCVD J. Lohani, S. Sapra, R. Tyagi Vacuum 164, 343 (2019). GaN nanostructures by reactive ion etching: Mask and Maskless approach J. Lohani, S. Varshney, D.S. Rawal, S. Sapra, R. Tyagi Nano-Structures and Nano-Objects 18, 100284 (2019). Nickel Selenide Nanoparticles as a Cheap Alternative for Pt-Counter Electrode in Dye-Sensitized Solar Cells S Yadav, Md. S. Hassan, P Verma, S Sapra J. Nanosci. Nanotechnol. 19, 375 (2019). Invited article Colloidally Synthesized Defect-Rich MoSe2 Nanosheets for Superior Catalytic Activity Md. S. Hassan, A. Jana, S. Gahlawat, N. Bhandary, S. Bera, P. P. Ingole, S. Sapra Bull. Mater. Sci. 42, 74 (2019). 2018 Facile green synthesis of BiOBr nanostructures with superior visible-light-driven photocatalytic activity S. Garg, M. Yadav, A. Chandra, S. Sapra, S. Gahlawat, P. P. Ingole, M. Todea, E. Bardos, Z. Pap, K. Hernadi Materials 11, 127 (2018). Size-Tunable Synthesis of Colloidal Silver Sulfide Nanocrystals for Solution-Processed Photovoltaic Applications R. Ahmad, R. Srivastava, H. Bhardwaj, S. Yadav, V. N. Singh, S. Chand, N. Singh, S. Sapra Chemistry Select 3, 5620 (2018). Evaluation of remineralization potential and mechanical properties of pit and fissure sealants fortified with nano-hydroxyapatite and nano-amorphous calcium phosphate fillers: An in vitro study S. Utneja, S. Talwar, R. R. Nawal, S. Sapra, M. Mitta, A. Rajain, M. Verma Journal of Conservative Dentistry 21, 681 (2018). Biofabricated BiOI with enhanced photocatalytic activity under visible light irradiation S. Garg, M. Yadav, A. Chandra, S. Sapra, S. Gahlawat, P. P. Ingole, Z. Pap, K. Hernadi RSC Advances 8, 29022 (2018). Fluorescence Quenching of CdTe Quantum Dots with Co (III) Complexes via Electrostatic Assembly Formation A. Pal, B. Arora, D. Rani, S. Srivastava, R. Gupta, S. Sapra Z. Phys. Chem. , (2018). Invited article, Special issue: Geburtstagsband Eychm ller Role of Tryptophan in Protein Nanocrystals Interaction: Energy or Charge Transfer M. Mittal, S. Gautam, P. K. Chowdhury, S. Deep, S. Sapra Z. Phys. Chem. , (2018). Invited article, Special issue: Nanosized Matter Tuning the electronic and magnetic properties of CuAlO₂ nanocrystals using magnetic dopants N. Ray, V. Gupta, L. Sarma, P. Kush, J. Nag, S. Sapra ACS Omega 3, 509 (2018). Surface Decides the Photoluminescence of Colloidal CdSe Nanoplatelets Based Core/Shell Heterostructures S. Yadav, A. Singh, L. Thulasidharan, S. Sapra J. Phys. Chem. C (2018). 2017 Instant Synthesis of White Light-emitting Cd Chalcogenide Nanoclusters Using Homogenization Method P. V. More, C. B. Hiragond, A. Jadhav, P. Kush, S. Sapra, P. K. Khanna Chemistry Select 2, 11775 (2017). Long-Lived Emission in Type-II CdS/ZnSe Core/Crown Nanoplatelet Heterostructures S. Yadav, A. Singh, S. Sapra J. Phys. Chem. C 121, 27241 (2017). Functionalized 2D-MoS₂ Incorporated Polymer Ternary Solar Cells: Role of Nanosheets Induced Long range Ordering of Polymer Chains on Charge Transport R. Ahmad, R. Srivastava, S. Yadav, S. Chand, S. Sapra ACS Appl. Mater. Interfaces 9, 34111 (2017). Nanocrystal-Dye interactions: Studying the feasibility of co-sensitization of dyes with semiconductor nanocrystals M. Mittal, S. Sapra ChemPhysChem 18, 2509 (2017). Coalesced nanomorphology, in situ, and ex situ applications of self assembled Gallium droplets grown by metal organic chemical vapor deposition J. Lohani, R. K. Bag, M. V. G. Padmavati, S. Sapra, R. Tyagi Chem. Phys. 493, 175 (2017). Quantum dots in visible light photoredox catalysis: Reductive dehalogenations and C-H arylation reactions using aryl bromides A. Pal, I. Ghosh, S. Sapra, B. Koenig Chem. Mater. 29, 5225 (2017). Efficient Charge Extraction from CdSe/ZnSe Dots-on-Plates Nanoheterostructures S. Yadav, B. Adhikary, P. Tripathy, S. Sapra ACS Omega 2, 2231 (2017). Functionalized MoS2 Nanosheets for 0D-2D Hybrid Nanostructure: Photoinduced Charge Transfer and Enhanced Photoresponse R. Ahmad, R. Srivastava, S. Yadav, D. Singh, G. Gupta, S. Chand, S. Sapra J. Phys. Chem. Lett. 8,1729 (2017). Solvent-free, mechanochemical syntheses of bulk trihalide perovskites and their nanoparticles A. Jana, M. Mittal, A. Singla, S. Sapra Chem. Commun. 53, 3046 (2017). Synthesis of trap emission free CdS quantum dots: Role of Phosphonic acids and halide ions V. Arora, U. Soni, M. Mittal, S. Yadav, S. Sapra J. Colloid Interface Sci. 491, 329 (2017). 2016 Size of the Organic Cation Tunes the Band Gap of Colloidal Organolead Bromide Perovskite Nanocrystals M. Mittal, A. Jana, S. Sarkar, P. Mahadevan, S. Sapra J. Phys. Chem. Lett. 7, 3270 (2016). Thickness dependent charge carrier dynamics in CdSe/ZnSe/CdS core/barrier/shell nanoheterostructures S. Yadav, A. Chowdhury, S. Sapra ChemPhysChem 17, 692 (2016). (Back Cover Illustration) 2015 Probing the Mechanism of Fluorescence Quenching of QDs by Co(III)-Complexes: Size of QD and Nature of the Complex, Both Dictate Energy and Electron Transfer Processes A. Pal, S. Srivastava, P. Saini, S. Raina, P. Ingole, R. Gupta, S. Sapra J. Phys. Chem. C 119, 22690 (2015). Narrowing the size distribution of CdTe nanocrystals using digestive ripening M. Mittal and S. Sapra Pramana - J. Phys. 84, 1049 (2015). Localization and Dynamics of Long-Lived Excitations in Colloidal Semiconductor Nanocrystals with Dual Quantum Confinement S. Liu, N. Borys, S. Sapra, A. Eychmüller, J. Lupton ChemPhysChem 16, 1663 (2015). Electrically-driven Assembly of CdTe Quantum Dots into Photoconductive Microwires G. Maheshwari, M. Mittal, S. Sapra, S. Gupta J. Mater. Chem. C 3, 1645 (2015). Cancer Cell Targeting Using Folic Acid/Anti-HER2 Antibody Conjugated Fluorescent CdSe/CdS/ZnS-MPA and CdTe-MSA Quantum Dots G. Singh, M. Kumar, U. Soni, V. Arora, V. Bansal, D. Gupta, M. Bhat, A. K. Dinda, S. Sapra, H. Singh J. Nanosci. Nanotechnol. 15, 9382 (2015). 2014 Intracellular delivery of peptide cargos using iron oxide based nanoparticles: studies on antitumor efficacy of BCL-2 converting peptide, NuBCP-9 M. Kumar, G. Singh, S. Sharma, D. Gupta, V. Bansal, V. Arora, M. Bhat, S. K. Srivastava, S. Sapra, S. Kharbanda, A. K. Dinda, H. Singh Nanoscale 6, 14473 (2014). Photocatalysis from Fluorescence-Quenched CdSe/Au Nanoheterostructures: A Size-Dependent Study U. Soni, P. Tripathy, S. Sapra J. Phys. Chem. Lett. 5, 1909 (2014). Investigation of the Photophysical and Electrical Characteristics of CuInS₂ QDs / SWCNT Hybrid Nanostructure R. Ahmad, U. Soni, R. Srivastave, V. Singh, S. Chand, S. Sapra J. Phys. Chem. C 118, 11409 (2014). Simultaneous Type-I/Type-II Emission from CdSe/CdS/ZnSe Nano-Heterostructures U. Soni, A. Pal, S. Singh, M. Mittal, S. Yadav, R. Elangovan, S. Sapra ACS Nano 8, 113 (2014). 2013 Electron transfer from CdSe/ZnS core shell quantum dots to Cobalt(III) complexes A. Pal, S. Srivastava, R. Gupta, S. Sapra Phys. Chem. Chem. Phys. 15, 15888 (2013). Quantum Dots Self Assembly Based Interface for Blood Cancer Detection A. Sharma, G. Sumana, S. Sapra, B. D. Malhotra Langmuir 29, 8753 (2013). Wurtzite or Zinc Blende? Surface decides the crystal structure of nanocrystals U. Soni, V. Arora, S. Sapra CrystEngComm 15, 5458 (2013). Enhanced performance of organic photovoltaic device by incorporation of tetrapod shaped CdSe nanocrystals in polymer-fullerene system R. Ahmad, V. Arora, R. Srivastava, S. Sapra, M. N. Kamalasanan Phys. Stat. Sol. A 210, 785 (2013). 2012 Cellular interaction of folic acid conjugated superparamagnetic iron oxide nanoparticles and its use as contrast agent for targeted magnetic imaging of tumor cells M. Kumar, G. Singh, V. Arora, S. Mewar, U. Sharma, N. R. Jagannathan, S. Sapra, A. K. Dinda, S. Kharbanda, H. Singh Int. J. Nanomed. 7, 3503 (2012). Chitosan encapsulated quantum dots platform for leukemia detection A. Sharma, C. M. Pandey, S. Gajjala, U. Soni, S. Sapra, A. K. Srivastava, T. Chatterjee, B. D. Malhotra Biosensors and Bioelectronics 38, 107 (2012). Surface Plasmon Resonance Based Fiber Optic Sensor Utilizing Metal Nanoparticles: Influence of Ambient Temperature S. K. Srivastava, V. Arora, S. Sapra and B. D. Gupta Sensors & Transducers Journal 139, 95 (2012). Nanopatterned Cadmium Selenide Langmuir Blodgett Platform for Leukemia Detection A. Sharma, C. Pandey, Z. Mathuru, U. Soni, S. Sapra, S. Gajjala, M. Pandey, T. Chatterjee, B. D. Malhotra Anal. Chem. 84, 3082 (2012). Highlighted in Nature India. doi:10.1038/nindia.2012.60 Localized surface plasmon resonance-based fiber optic U-shaped biosensor for the detection of blood glucose S. K. Srivastava, V. Arora, S. Sapra, B. D. Gupta Plasmonics 7, 261 (2012). 2011 Selective capturing and detection of Salmonella typhi on polycarbonate membrane using bioconjugated quantum dots R. Jackeray, C.K.V. Zainul Abid, G. Singh, S. Jain, S. Chattopadhyaya, S. Sapra, T.G. Shrivastav, H. Singh Talanta 84, 952 (2011). Detection of Bioconjugated Quantum Dots Passivated with Different Ligands for Bio-Applications G. Singh, N. H. Zaidi, U. Soni, M. Gautam, R. Jackeray, H. Singh, S. Sapra J. Nanosci. Nanotechnol. 11, 3834 (2011). 2010 The importance of surface in core-shell semiconductor nanocrystals U. Soni, S. Sapra J. Phys. Chem. C 114, 22514 (2010). Origin of the Enhanced Photoluminescence from Semiconductor CdSeS Nanocrystals D. D. Sarma, A. Nag, P. Santra, A. Kumar, S. Sapra, P. Mahadevan J. Phys. Chem. Lett. 1, 2149 (2010). Growth mechanism of cadmium sulfide nanocrystals R. Viswanatha, H. Amenitsch, S. R. Santra, S. Sapra, S. S. Datar, Y. Zhou, S. K. Nayak, S. K. Kumar, D. D. Sarma J. Phys. Chem. Lett. 1, 304 (2010). 2009 Real-time magnetic resonance imaging and quantification of lipoprotein metabolism in vivo using nanocrystals O. T. Bruns, H. Ittrich, K. Peldschus, M. G. Kaul, U. I. Tromsdorf, J. Lauterwasser, M. S. Nikolic, B. Mollwitz, M. Merkel, N. C. Bigall, S. Sapra, R. Reimer, H. Hohenberg, H. Weller, A. Eychmüller, G. Adam, U. Beisiegel, J. Heeren Nature Nanotechnology 4, 193 (2009). 2008 Selective enhancement of surface-state emission and simultaneous quenching of interband transition in white-luminophor CdS nanocrystals using localized plasmon coupling T. Özel, M. Soganci, S. Nizamoglu, I. O. Huyal, E Mutlugun, S. Sapra,N. Gaponik, A. Eychmüller New J. Phys. 10, 083035 (2008). Tuning shades of white light with multi-color quantum-dot-quantum-well emitters based on onion-like CdSe-ZnS heteronanocrystals S. Nizamoglu, E Mutlugun, T. Özel, H. V. Demir, S. Sapra, N. Gaponik and A. Eychmüller Nanotechnology 19, 335203 (2008). Dual-color emitting quantum dot quantum well CdSe-ZnS hetero-nanocrystals hybridized on InGaN/GaN light emitting diodes for high-quality white light generation S. Nizamoglu, E Mutlugun, T. Özel, H. V. Demir, S. Sapra, N. Gaponik and A. Eychmüller Appl. Phys. Lett. 92, 113110 (2008). White emitting CdS quantum dot nanoluminophores hybridized on near-ultraviolet LEDs for high-quality white light generation and tuning S. Nizamoglu, E Mutlugun, O. Akyuz, N. K. Perkgoz, H. V. Demir, L. Liebscher, S. Sapra, N. Gaponik and A. Eychmüller New J. Phys. 10, 023026 (2008). Highlighted in IOP Select. Decorated wires as a reaction product of the microwave assisted synthesis of CdSe in the presence of glycine A. Y. Rakovich, V. Stockhausen, A. S. Susha, S. Sapra, and A. L. Rogach Coll. Surf. A 317, 737 (2008). 2007 CdTe Nanowire Networks: Fast Self-Assembly in Solution, Internal Structure, and Optical Properties Y. P. Rakovich, Y. Volkov, S. Sapra, S. Susha, M. Doblinger, J. F. Donegan and A. L. Rogach J. Phys. Chem. C 111, 18927 (2007). A rational approach towards CdSe nanorod synthesis S. Sapra, J. Poppe and A. Eychmüller Small 3, 1886 (2007). Temperature dependence of exciton transfer in hybrid quantum well/nanocrystal heterostructures S. Rohrmoser, J. Baldauf, R. T. Harley, P. G. Lagoudakis, S. Sapra, A. Eychmüller and I. M. Watson Appl. Phys. Lett. 91, 092126 (2007). A study of Mn2+ doping in CdS nanocrystals A. Nag, S. Sapra, C. Nagamani, A. Sharma, N. Pradhan, S. V. Bhat and D. D. Sarma Chem. Mater. 19, 3252 (2007). White light emission from a blend of CdSeS nanocrystals of different Se:S ratio M. Ali, S. Chattopadhyay, A. Nag, A. Kumar, S. Sapra, S. Chakraborty and D. D. Sarma Nanotechnology 18, 075401 (2007). Bright white light emission from semiconductor nanocrystals: by chance and by design S. Sapra, S. Mayilo, A. L. Rogach and J. Feldmann Adv. Mater. 19, 569 (2007). Cover page illustration 2006 Phosphine free synthesis of monodispersed CdSe nanocrystals in olive oil S. Sapra, A. L. Rogach and J. Feldmann J. Mater. Chem. 16, 3391 (2006). Highlighted in Chem. Sci. 3, C69 (2006). Highlighted in News Ticker: Eur. J. Lipid Sci. Technol. 108, 1070 (2006). Unravelling internal structures of highly luminescent PbSe nanocrystallites using variable-energy synchrotron radiation photoelectron spectroscopy S. Sapra, J. Nanda, J. M. Pietryga, J. A. Hollingsworth, and D. D. Sarma J. Phys. Chem. B 110, 15244 (2006) Highlighted in Elettra Highlights 2005-2006 (pp 54-56). Fluorescent stimuli-responsive grafted composite layers of polymers and semiconductor nanocrystals as environmental sensors L. Ionov, S. Sapra, A. Synytska, A. L. Rogach, M. Stamm, S. Diez Adv. Mater. 18, 1453 (2006). 2005 Electronic structure of and quantum size effects in III-V and II-VI semiconducting nanocrystals using a realistic tight binding approach R. Viswanatha, S. Sapra, T. Saha-Dasgupta and D. D. Sarma Phys. Rev. B 72, 045333 (2005). Magnetic properties of doped II-VI Nanocrystals D. D. Sarma, R. Viswanatha, S. Sapra, A. Prakash and M. Garcia-Hernandez J. Nanosci. Nanotechnol. 5, 1503 (2005). Emission properties of Mn doped ZnS nanocrystals S. Sapra, A. Prakash, A. Ghanghrekar, N. Periasamy and D. D. Sarma J. Phys. Chem. B 109, 1663 (2005). 2004 Synthesis and characterization of Mn doped ZnO nanocrystals R. Viswanatha, S. Sapra, S. Sen Gupta, B. Satpati, P. V. Satyam, B. N. Dev and D. D. Sarma J. Phys. Chem. B 108, 6303 (2004). Evolution of the electronic structure with size in II-VI semiconductor nanocrystals S. Sapra and D. D. Sarma Phys. Rev. B 69, 125304 (2004). Understanding the quantum size effects in ZnO nanocrystals R. Viswanatha, S. Sapra, B. Satpati, P. V. Satyam, B. N. Dev and D. D. Sarma J. Mater. Chem. 14, 661 (2004). 2003 An accurate description of quantum size effects in InP nanocrystallites over a wide range of sizes S. Sapra, R. Viswanatha and D. D. Sarma J. Phys. D: Appl. Phys. 36, 1595 (2003). Optical and magnetic properties of manganese doped zinc sulfide nanoclusters S. Sapra, J. Nanda, A. Anand, S. V. Bhat and D. D. Sarma J. Nanosci. Nanotechnol. 3, 392(2003). 2002 Realistic tight binding model for the electronic structure of II-VI semiconductors S. Sapra , N. Shanthi and D. D. Sarma Phys. Rev. B 66, 205202 (2002). Influence of quantum confinement on the electronic and magnetic properties of (Ga,Mn)As diluted magnetic semiconductors S. Sapra, D. D. Sarma, S. Sanvito and N. A. Hill Nano Lett. 2, 605 (2002). 2001 Blue emission from cysteine ester passivated cadmium sulfide nanoclusters S. Sapra, J. Nanda, D. D. Sarma, F. Abed El-Al and G. Hodes Chem. Comm. pp 2188, issue 21, (2001). 2000 Size selected zinc sulfide nanocrystallites: synthesis, structure and optical studies J. Nanda, S. Sapra, D. D. Sarma, N. Chandrasekharan and G. Hodes Chem.Mater. 12, 1018 (2000). Conference Proceedings Cu₂S decorated MoSe₂ nanosheets as counter electrode for quantum dot sensitized solar cells Md. S. Hassan, S. Sapra Materials Today: Proceedings (2020) A Solution Processed CdSe N Ano-Platelets Based Sensor for Cd Detection P. Vinayak, A. Singh, S. Sapra, M. Singh, B. Mitra Proceedings of IEEE Sensors 2018-October, 8589907 Synthesis of Core Shell Quantum Dots and Their Potential Application Proceedings of ICANN-2009, Guwahati U. Soni, V. Arora, G. Singh, M. Hussain, S. Sapra P. K. Giri et al. (eds.), Advanced Nanomaterials and Nanotechnology, Springer Proceedings in Physics 143, 85 (2013). Bioconjugated quantum dots based rapid detection of pathogenic bacteria from water samples Proceedings of ICANN-2009, Guwahati R. Jackeray, G. Singh, S. Jain, C. K. V. Zainul-Abid, H. Singh, N. H. Zaidi, U. Soni, S. Sapra and T. G. Shrivastav Int. J. Nanosci. 10, 199 (2011). Luminescence in Mn-doped CdS nanocrystals Proceedings of the National Review and Coordination Meeting on Nanoscience and Nanotechnology , Hyderabad, 2007 A. Nag, S. Sapra, S. Sen Gupta, A. Prakash, A. Ghangrekar, N. Periasamy and D. D. Sarma Bulletin of Mater. Sci.31, 561 (2008). White light emitting nanostructures S. Sapra, S. Mayilo, T. Klar, A. L. Rogach and J. Feldmann Physics, Chemistry and Applications of Nanostructures: Reviews and Short Notes to Nanomeeting 2007, May 22-25. Decorated nanowires as a product of microwave synthesis of CdSe in presence of glycine A. S. Susha, A. Yu Rakovich, S. Sapra, A. L. Rogach and J. Feldmann Physics, Chemistry and Applications of Nanostructures: Reviews and Short Notes to Nanomeeting 2007, May 22-25. Growth of semiconducting nanocrystals of CdS and ZnS Proceedings of ICONSAT 2006 R. Viswanatha, S. Sapra, H. Amenitsch, B. Sartori and D. D. Sarma J. Nanosci. Nanotechnol. 7, 1726 (2007). Synthesis of CdSe nanocrystals in a noncoordinating solvent: effect of reaction temperature on size and optical properties Proceedings of ICONSAT 2006 A. Nag, S. Sapra, S. Chakraborty, S. Basu and D. D. Sarma J. Nanosci. Nanotechnol. 7, 1 (2007). Electronic structure of semiconductor nanocrystals: an accurate tight-binding description Proceedings of ICONSAT 2003: Special Issue in IJN Guest Edited by Prof. M. K. Sanyal et al. S. Sapra, R. Viswanatha and D. D. Sarma Int. J. Nanosci. 4, 893 (2005). Simultaneous control of nanocrystal size and nanocrsytal-nanocrystal separation in CdS nanocrystal assembly Proceedings of the National Conference on Nanoscience and Technology, March S. Sapra and D. D. Sarma Pramana 65, 565 (2005). Optical properties of manganese doped zinc Sulfide and zinc oxide nanoclusters S. Sapra, R. Viswanatha, Jagjit Nanda and D. D. Sarma Recent Advances in Inorganic Materials, Ed. D. Bahadur, Narosa Publishers pp 452-457 (2003). Semiconducting nanoparticles S. Sapra, J. Nanda and D. D. Sarma Proceedings of the plenary: 90th session of Indian Science Congress Bangalore, 2003, pp 3.4, (2003). Electronic structure of semiconducting nanocrystallites S. Sapra and D. D. Sarma Proceedings of the 3rd Japan-Korea Joint Workshop on First-Principles Electronic Structure Calculations, Oct.-Nov. 2001, pp 105 Tsukuba, Japan (2002). Book Chapters Conjugated-Polymer/Quantum-Confined Nanomaterials Hybrids for Optoelectronic Applications A. Pal, P. Saini and S. Sapra in Fundamentals of Conjugated Polymer Blends, Copolymers and Composites: Synthesis, Properties, and Applications, Scrivener Publishing LLC Ed: P. Saini pp 163-228 (2015). Electronic Structure and Spectroscopy of Semiconductor Nanocrystals S. Sapra and D. D. Sarma in Chemistry of Nanomaterials: Synthesis, Properties and Applications, Wiley-VCH, Eds: C. N. R. Rao, A. Muller, A. K. Cheetham, Weinheim Ch. 11, pp 371-404 (2004). Electronic Structure of Semiconducting Nanoparticles S. Sapra, J. Nanda and D. D. Sarma in Encyclopedia of Nanoscience and Nanotechnology, Ed. H. S. Nalwa, American Scientific Publishers Vol. 3, pp 181-192 (2004). X-ray Photoelectron Spectroscopy of Nanostructured Materials J. Nanda, S. Sapra and D. D. Sarma in Encyclopedia of Nanoscience and Nanotechnology, Ed. H. S. Nalwa, American Scientific Publishers Vol. 10, pp 711-724 (2004).
Department of Chemistry, IIT Delhi