सीएसआईआर-राष्ट्रीय भौतिक प्रयोगशाला
CSIR-National Physical Laboratory
Photonic Materials Metrology
About
The photonic materials Metrology section is actively engaged in the photonic materials research, light matter interaction, non-linear spectroscopy, utilization of diverse organic and inorganic materials to be employed in energy harvesting via detection and generation of light. The materials in the form of nanostructures to bulk materials are being maneuvered for the detection, guiding, manipulation, amplification and management of light to be employed in many applications like metrology and luminescent Security Ink, plasmonic metamaterials, detectors etc. Though spanning all light’s technological uses across the complete spectrum, most photonic applications are in the range of UV to NIR area including the Terahertz domain as well.
The group is actively engaged in the areas of nano photonics, organic photonics and optoelectronics, Ultrafast Optoelectronics & Terahertz Photonics and advanced luminescent materials for security ink.
Research Areas
- Security Ink, CSII and invisible election ink, Luminescent pigment
- Luminescent Materials (Bulk & Nano) and Emerging 2D materials (Graphene, MoS2, WS2, MoSe2, BN etc)
- Organic and Perovskite Photonic Devices
- Bulk & nano-photonics materials
- Water Remediation of Organic Pollutants and Industrial Wastes by Solution- Route Processed CZTS Nanocrystals
- Green synthesis of Silver Oxide Nanoparticles from Artocarpus Hetrophyllus for Antibacterial and Antimicrobial Applications
- Ultrafast dynamics, Surface Science, Plasmonic and meta-materials
- Phase Change Materials and Photocatalytic degradation
- 2D Materials Metrology
- Thin Film & FET Measurements Metrology
Current R&D Projects
- Indigenous development of Colour Shift Intaglio Ink (CSII), (Security Printing and Minting Corporation of India Limited, (SPMCIL) & SSP19032) Dr. Bipin Kumar Gupta, Principal Scientist ( PI of Project)
- Development of PCR free, facile luminescence based kit for ultra-sensitive detection of covid-19 (No. BT/PR40773/COD/139/17/2020; Department of Biotechnology (DBT), Govt. of India) Dr. Bipin Kumar Gupta, Principal Scientist ( PI of Project)
- A compact vaccine storage unit based on the solid state cooling, (M/s Tata Trusts ;Social Alpha and M/s Enhanced innovation)
- Topological semimetals, compound semiconductors and silicon as a basis for the creation of plasmonic metamaterials for optoelectronic applications,(DST-RSF)
- Developments of Metal halide perovskite based photonic devices: Perovskite Light Emitting Diodes (PeLED),(Submitted)
- Noble Metal-Free Based Cocatalysts Nano Heterostructures for Solar-to-Chemical Energy Conversion (Submitted)
- Fabrication and characterization of perovskite based electronics devices: different types of low voltage field effect transistors and resistive switching memory (Memristor) (DST Women Scientist)
Projects Highlights
Indigenous development of Colour Shift Intaglio Ink (CSII)
Color Shift Intaglio Ink (CSII) is an important feature employed globally to protect the counterfeiting of the currency. The intaglio printed security features using this ink displays two distinct colors depending on the viewing angle of the currency. Although this feature is currently available on the Indian currency notes, the security ink at present is resourced largely through imports thereby leading to a large outflow of foreign exchange. CSIR-NPL has discovered the know-how of preparing colour shift pigments (green to blue) and sent to BNP Dewas to examine at ink factory Dewas for the colour shift effect. The report received from BNP Dewas on 14th February 2020 and the report was found satisfactory by BNP Dewas and stated that, “the synthesized CSIR-NPL pigment is comparable to standard sample used at present”.
Development of PCR free, facile luminescence based kit for ultra-sensitive detection of covid-19Our aim is to develop a PCR free, simple, fast and cost effective detection kit for COVID-19. The ongoing outbreak of the novel corona virus disease 2019. COVID-19 draws worldwide concerns due to its long incubation period and strong infectivity. The time between infection of a person and appearance of virus in throat/ nasopharyngeal swab/sputum or appearance of first clinical symptom is highly variable. A suspected person needs multiple tests in consecutive days to confirm the presence/absence of virus. This poses psychological stress on people and economic burden on government. Although RT-PCR based molecular diagnosis techniques are being widely applied for the clinical diagnosis of COVID-19. The timely and accurate diagnoses are still limited due to its labor intensive and time consuming procedure. To stop the viral infection, we need fast, sensitive and cost effective detection method so that testing can be done rigorously and in large number in less time. Thus the development of cost effective, simple and self testing kit that does not require sophisticated equipment will be a great tool for healthcare provider and people. Suspected person can self check the presence of virus in sputum/ throat swab for consecutive days and if found positive can be isolated to stop infection further. Thus, we proposed to develop PCR free, facile luminescence based kit for fast detection of COVID-19.
Patents
- Process for growing an electron injection layer to improve the efficiency of organic light emitting diodes, Kamalasanan Narayanan Modeeparampil, Ritu Srivastava, Rakhi Grover, Sundeep Kumar Dhawan, Suresh Chand, S. S.Bawa, New Delhi, US 8,491,820 B2(Granted)
- Process for growing an electron injection layer to improve the efficiency of organic light emitting diodes, Kamalasanan Narayanan Modeeparampil, Ritu Srivastava, Rakhi Grover, Sundeep Kumar Dhawan, Suresh Chand, S. S.Bawa, New Delhi, IN 310958 (Granted)
- Lithium metal quinolates and process for preparation thereof as good emitting interface materials as well as N-type dopant for organic electronic devices, Kamalasanan Narayanan Modeeparampil, Ritu Srivastava, Amit Kumar, Ishwar Singh, Sundeep Kumar Dhawan, S. S.Bawa, New Delhi, US 9,368,734 B2(Granted)
- Lithium metal quinolates and process for preparation there of as good emitting, interface materials as well as n-type dopent for organic electronic devices, Kamalasanan Narayanan Modeeparampil, Ritu Srivastava, Amit Kumar, Ishwar Singh, Sundeep Kumar Dhawan, S. S.Bawa, New Delhi, IN297653 (Granted)
Key Publications (Last Five Years)
- Mixed bismuth-antimony-based double perovskite nanocrystals for solar cell application, Ashish Kumar,Sanjay Kumar Swami, S.S. Rawat, V.N. Singh, Om Prakash Sinha, Ritu Srivastava , Int, J Energy Res.1–12,2021.
- Magneto-electrical properties of nickel phthalocyanine thin film and its application in organic solar cells,S. S. Rawat, A. Rana, Ashish Kumar, Sanjay Kumar Swami, R. Srivastava , C. K. Suman, Solar energy, 2022 (Accepted)
- A study on chemical exfoliation and structural and optical properties of two-dimensional layered titanium diselenide,Ashish Kumar , Rohit Sharma, Sandeep Yadav, Sanjay Kumar Swami, Reena Kumari, V N Singh, S Ojha, Joerg J Schneider, Ritu Srivastava, O P Sinha, Dalton Trans,50,3894–3903,2021.
- Colloidal lead-free Cs2AgBiBr6 double perovskite nanocrystals:Synthesis, uniform thin-film fabrication, and application in solution-processed solar cells , Razi Ahmad, Gautam Virender Nutan, Dinesh Singh, Govind Gupta, Udit Soni, Sameer Sapra, and Ritu Srivastava Nano Research, 2020.
- Benzoyl Halide as Alternative Precursor for Synthesis of Lead Free Double Perovskite Cs3Bi2Br9 Nanocrystals, Ashish Kumar, S. S. Rawat, Sanjay Kumar Swami, Vidya Nand Singh, and Ritu Srivastava, Journal of, Nanoscience and Nano technology, 20, 3802–3808, 2020.
- Efficiency Enhancement in Organic Solar Cells by Use of Cobalt Phthalocyanine (CoPc) Thin Films, S. S. Rawat, Ashish Kumar, R. Srivastava, and C. K. Suman, Journal of Nanoscience and Nanotechnology,20, 3703–3709, 2020.
- Investigation of negative magneto‑conductance properties of cobalt phthalocyanine thin films, S. S. Rawat, A. Rana,• Sanjay Kumar Swami, R. Srivastava, C.K.Suman, SN Applied Sciences,2: 586, 2020.
- Study of contact resistance with PtPc buffer layer in vertical organic field-effect transistor, Ritu Verma and Ritu Srivastava, Eng. Res. Express,1, 015015, 2019.
- Study of enhancement in the dielectric and electrical properties of WO3-doped LiF nano-composite,R Verma, SP Tiwari, R Kumari, R Srivastava – Journal of Materials Science, 53,4199-4208,2018.
- Metal-CH3NH3PbI3-Metal Tunnel FET,Kalpana Agrawal, Vinay Gupta, Ritu Srivastava, SS Rajput, IEEE Transactions on Electron Devices,65,1902-1909,2018.
- WO3-doped LiF as gate dielectric for p-channel vertical organic field effect transistor application, Ritu Verma, CK Suman, Ritu Srivastava, Thin Solid Films,666,156-160,2018
- The Effect of Base–Emitter Interfacial Layer on the Organic Permeable Base Transistor’s Characteristics, K Agrawal, R Srivastava, SS Rajput, IETE Technical Review,1-12,2018.
- Analysing the TIPSP-based VOFET through transistor efficiency (gm/ID),Kalpana Agrawal, Ritu Srivastava, SS Rajput,IET Circuits, Devices & Systems,2018.
- Size Tunable Synthesis of Colloidal Silver Sulfide Nanocrystals for Solution‐Processed Photovoltaic Applications,Razi Ahmad, Ritu Srivastava, Hema Bhardwaj, Sushma Yadav, Vidya Nand Singh, Suresh Chand, Nidhi Singh, Sameer Sapra,Chemistry Select,3,5620-5629,2018.
- High Yield Synthesis and Chemical Exfoliation of Two-Dimensional Layered Hafnium Disulphide,Harneet Kaur, Sandeep Yadav, Avanish K. Srivastava, Nidhi Singh, Shyama Rath, Jorg J. Schneider, Om P. Sinha and Ritu Srivastava,,Nano research,11, 343–353,2018.
- Functionalized Molybdenum Disulphide Nanosheets for 0D-2D Hybrid Nanostructure: Photoinduced Charge Transfer and Enhanced Photoresponse, Razi Ahmad, Ritu Srivastava, Sushma Yadav, Dinesh Singh, Govind Gupta, Suresh Chand, and Sameer Sapra,J. Phys. Chem. Lett.,,8 (8) ,1729–1738,2017.
- Functionalized 2D-MoS2-Incorporated Polymer Ternary Solar Cells: Role of Nanosheet-Induced Long-Range Ordering of Polymer Chains on Charge Transport, Razi Ahmad, Ritu Srivastava, Sushma Yadav, Suresh Chand, Sameer Sapra, ACS applied materials & interfaces,9,34111-34121,2017.
- Charge transport study of P3HT blended MoS2,Surya Prakash Tiwari, Ritu Verma, Md Bayazeed Alam, Reena Kumari, OP Sinha, Ritu Srivastava,Vacuum,146,474-477,2017.
- Modeling of Organic Permeable Base Transistor Based on Inverse of Transistor Efficiency (IC / gm),Kalpana Agrawal, Ritu Srivastava, SS Rajput, IEEE Transactions on Electron Devices,64,3353-3359,2017.
- A Novel Approach to Design Luminomagnetic Pigment Formulated Security Ink for Manifold Protection to Bank Cheques Against Counterfeiting, Kanika, Garima Kedawat, Satbir Singh, and Bipin Kumar Gupta, Advanced MaterialsTechnologies, 6, 2000973, 2021.
- Temperature Dependent Raman Scattering of Directly Grown Twisted Bilayer Graphene Film using LPCVD Method, Girija Shankar Papanai, Jasveer Singh, Nita Dilawar Sharma, S. G. Ansari and Bipin Kumar Gupta, Carbon, 177, 366-376,2021.
- Ultrasensitive Wearable Strain Sensors Based on a VACNT/PDMS Thin Film for a Wide Range of Human Motion Monitoring, Sharon J. Paul, Indu Elizabeth and Bipin Kumar Gupta, ACS Applied Materials & Interfaces, 13, 8871-8879,2021.
- New Insight into Growth of Monolayer MoS2 Flakes by Indigenously Developed CVD setup: A Study on Shape Evolution and Spectroscopy, Girija Shankar Papanai, Samanta Pal, Prabir Pal, Brajesh S. Yadav, Preeti Garg, Sarika Gupta, S. G. Ansari, and Bipin Kumar Gupta, Materials Chemistry Frontiers,5, 5429- 5441, 2021.
- A Comparative Study of Compressible and Conductive Vertically Aligned Carbon Nanotube Forest in Different Polymer Matrixes for High Performance Piezoresistive Force Sensors, Sharon J. Paul, Indu Sharma, Indu Elizabeth, Bhaskar Gahtori, S. Seelakumar Titus, Prakash Chandra and Bipin Kumar Gupta, ACS Applied Materials &Interfaces,1216946-16958,2020.
- Single Excitable Dual Emissive Novel Luminescent Pigment to Generate Advanced Security Features for Anti-counterfeiting Applications, Amit Kumar Gangwar, Kanika Nagpal, Garima Kedawat, Girija Shankar Papanai and Bipin Kumar Gupta, Journal of Materials Chemistry C,7, 13867-13877, 2019.
- Qualitative Analysis of Mechanically Exfoliated MoS2 Nanosheets Using Spectroscopic Probes, Girija Shankar Papanai, Indu Sharma, Garima Kedawat and Bipin Kumar Gupta, Journal of Physical Chemistry C, 123,27264-27271,2019.
- High Power Laser Driven YAG:Ce Phosphor Incoporated Sapphire Disc for Outstanding White Light Conversion Efficiency, Kanika, Garima, Kedawat, Pratima, Kundu, Ritu Srivastava, J. K., Jain, H.C. Kandpal, and Bipin Kumar Gupta, Physica Status Solidi A:Applications and Materials Science, 216,1900110, 2019.
- Highly-efficient, Chemicallystable, UV/blue Light Excitable Biluminescent Security Ink to Combat Counterfeiting, Akhilesh Kumar Singh, Satbir Singh and Bipin Kumar Gupta, ACS Applied Materials & Interfaces, 10, 44570–44575, 2018
- Unclonable security codes designed from multicolour luminescent lanthanide doped Y2O3 nanorods for anticounterfeiting, Pawan Kumar, Kanika Nagpal and Bipin Kumar Gupta, ACS Appl. Mater. Interfaces,9, 14301−14308, 2017. Wavelength and decay time tuning of intraband transitions in low spatial frequency laser-induced periodic surface structures Nikita Vashistha, Amit Kumar, Rajiv K.Singh, Mahesh Kumar Optik 246, 167833, 2021.
- Low-temperature ultrafast optical probing of topological bismuth selenide Prince Sharma, Rahul Sharma, V.P.S.Awana, T.N.Narayanan, Bipin Kumar Gupta, Nikita Vashistha,Lavi Tyagi, Mahesh Kumar Journal of Alloys and Compounds 886, 161235, 2021.
- Giant photoresponsivity of transfer free grown fluorographene – MoS2 heterostructured ultra-stable transistors Rahul Sharma,Prince Sharma, Krishna Rani Sahoo,Soumya Sankar,V.P.S.Awana,Mahesh Kumar, T. N.Narayanan Materials Today 50, 69-78, 2021.
- Comprehensive analysis of Terahertz frequency response of Bi2Se3 and Bi2Te3 single crystals using Terahertz time-domain spectroscopy P. Sharma, Mahesh Kumar, V.P.S. Awana, A. Singh, H. Gohi, S. S. Prabhu Materials Science and Engineering: B 272, 115355, 2021.
- Tuning the Plasmonic Response of AuGe Nanoparticles on GaAs Substrates: Implications for Photodetectors Lavi Tyagi, Mahesh Kumar, Sritoma Paul, Shubham Mondal, Nagendra S. Chauhan, Saurabh Saini, Nikita Vashistha, and Subhananda Chakrabarti ACS Appl. Nano Mater. 4, (9) 9566–9583, 2021.
- Detection and analysis of structural changes in MoO3/Ag heterostructure by ultrafast transient absorption spectroscopy Nikita Vashistha Amit Kumar,Mahak Vij, Rajiv K.Singh, Mahesh Kumar Physica B: Condensed Matter 604, 412697, 2021.
- A comprehensive study of ultrafast carrier dynamics of LT-GaAs: Above and below bandgap regions N. Vashistha, Mahesh Kumar, Rajiv K.Singh,D.P. Panda,L.Tyagi, Subhananda Chakrabarti Physica B: Condensed Matter 602, 412441, 2021.
- Metal doping in topological insulators- a key for tunable generation of terahertz Prince Sharma,M.M.Sharma, Mahesh Kumar,V.P.S.Awana Solid State Communications 319, 114005, 2020. An insight into the mechanism of charge transfer of organic (P3HT): inorganic (CZTS) composites for hybrid photovoltaics, Shefali Jain, Neeraj Chaudhary & Shailesh Narain Sharma, Materials Technology, Published Online 11January 2021, DOI: 10.1080/10667857.2020.1870195.
- An insight into the surface engineering of colloidal PbSe quantum dots for polymer hybrid photovoltaic applications, Aarti Mehta, A. K. Srivastava, Govind Gupta, Suresh Chand, Shailesh Narain Sharma, Journal of Sol-Gel Science and Technology, Published: 26 May 2021, https://doi.org/10.1007/s10971-021-05539-5
- 3% Fe2O3: Cr2O3- an excellent magneto-opto-electrically active nanomaterial, Divya Rehani, Manish Saxena, Sanjay R. Dhakate, Shailesh Narain Sharma, Applied Physics A volume 127, Article number: 126, 2021. https://doi.org/10.1007/s00339-020-04255-1
- Comparison of co-operative down-conversion luminescence in Pr3+, Yb3+ doped CaF2 and SrF2, Swati Bishnoi, Divya Rehani, Naina Lohia, Manisha Tanwar, Lalit Goswami, Govind Gupta, Shailesh Narain Sharma, Optik 240, 166814, August 2021.
- Adverse Effect of Europium Doping on Magneto-Optical Properties of Cr2O3, Divya Rehani, Swati Bishnoi, Manish Saxena, Shailesh Narain Sharma, Advanced Science, Engineering and Medicine, Volume 12, Number 1,36-39, January 2020, DOI: https://doi.org/10.1166/asem.2020.2511
- Encapsulation of Cu-doped TiO2 nanocomposites with the understanding of weak photocatalytic properties for sunscreen applications, Jyoti Bansal,Sanjay Kumar Swami,Rana Tabassum,Shailesh Narain Sharma &Aurangzeb Khurram Hafiz, Journal of Dispersion Science & Technology, Published online: 11 Nov 2020; https://doi.org/10.1080/01932691.2020.1841653
- Recent Advancements in Near-Infrared Perovskite Light-Emitting Diodes, Parth Vashishtha, Swati Bishnoi, C.-H. Angus Li, Metikoti Jagadeeswararao, Thomas J. N. Hooper, Naina Lohia, Sunil B. Shivarudraiah, Mohammed S. Ansari, Shailesh N. Sharma and Jonathan E. Halpert, ACS Appl. Electron. Mater. 2, 11, 3470–3490, 2020. https://doi.org/10.1021/acsaelm.0c00825
- Detailed chemical mechanism of the phase transition in nano-SrTiO3 perovskite with visible luminescence, Sonali Mehra; Swati Bishnoi, Lalit Goswami, Govind Gupta, AK Srivastava, Shailesh Narain Sharma, INORGANIC CHEMISTRY COMMUNICATIONS; Volume: 120, Article Number: 108125; Published: OCT 2020; DOI: 10.1016/j.inoche.2020.108125
- Perspectives of chalcopyrite-based CIGSe thin-film solar cell: a review, G. Regmi, A. Ashok, Parul Chawla, Pooja Semalti, S. Velumani, Shailesh Narain Sharma & H. Castaneda, J Mater Sci: Mater Electron 31, 7286–7314 (2020). https://doi.org/10.1007/s10854-020-03338-2.
- Efficient luminomagnetic and conductive Eu and Dy doped ZnO phosphors for multifunctional devices, Divya Rehani, Swati Bishnoi, Manish Saxena, D. Haranath, Shailesh Narain Sharma, Journal of Physics and Chemistry of Solids, 143, Article 109460, August 2020. (https://doi.org/10.1016/j.jpcs.2020.109460)
- Performance analysis of anomalous photocatalytic activity of Cr-doped TiO2 nanoparticles [Cr(x)TiO2(1−x)], J. Bansal, J., R. Tabassum, SK Swami, S. Bishnoi, AK Hafiz, , Shailesh Narain Sharma, Appl. Phys. A 126, 363, 2020. https://doi.org/10.1007/s00339-020-03536-z
- A review on spectral converting nanomaterials as a photoanode layer in dye-sensitized solar cells with implementation in energy storage devices, Sonali Mehra , Swati Bishnoi, Shailesh Narain Sharma, Energy Storage, e120, 2020, https://doi.org/10.1002/est2.12028.
- Synthesized zinc oxide nano rods and flowers studies for optical, di-electrical and photocatalytic applications, HK Verma, Divya Rehani, Shailesh Narain Sharma, KK Maurya, Optik (Elsevier Publisher), Vol. 204, Article 164154, Feb. 2020.
- Spectral investigations of less explored rod-shaped green emitting Ba2SiO4:Tb3+ phosphors for LED and photovoltaic applications, Swati Bishnoi, NainaLohia, Divya Rehani, Sonali Mehra, Shailesh Narain Sharma,Optik (Elsevier Publishers), Volume 203, Article 164015, February 2020.
- Dual-functional cathode buffer layer for power conversion efficiency enhancement of bulk-heterojunction solar cells,Datt, Ram; Bishnoi, Swati; Gupta, Ramashanker; Shailesh Narain Sharma et al., Synthetic Metals, Volume: 255 Article Number: UNSP 116112 Published: SEP 2019.
- Dye Sensitized Solar Cells (DSSCs) Electrolytes and Natural Photo-Sensitizers: A Review, Pooja Semalti and Shailesh Narain Sharma, J. Nanosci. Nanotechnol. (American Scientific Publishers)20, 3647–3658, 2020.
- Structural Modelling of Hybrid ZnO–CdSe Nano-Compounds Using X-ray Photoelectron Spectroscopy Depth-Profiling Technique, Shefali Jain, Akanksha Singh, Mahesh Kumar, and Shailesh Narain Sharma,J. Nanosci. Nanotechnol., (American Scientific Publishers)20, 3741–3753, 2020.
- Novel multi-wavelength excitable single-component phosphor system for application in white-LEDs, Naina Lohia, Vishnu V.Jaiswal, Swati Bishnoi, G.Swati, Shailesh Narain Sharma, Manoj Mohapatra, D. Haranath,Ceramics International,Available online 3 October 2019. In Press, Corrected Proof.(https://doi.org/10.1016/j.ceramint.2019.09.212).
- Self-Activated Green-Yellow Emitting Gd2CaZnO5 Phosphor for Efficient Ultra-Violet Light-Emitting Diodes,NainaLohia, Savvi Mishra, Swati Bishnoi, G. Swati, Vishnu V. Jaiswal, D. Haranath, Manoj Mohapatra, and Shailesh Narain Sharma, J. Nanosci. Nanotechnol.(American Scientific Publishers)20, 3754–3761,2020.
- Improved quality absorber layer of I-III-VI2 compound semiconductors: Purification process Revisited, Shailesh Narain Sharma, Parul Chawla, Gautam Gautam, N. Vijyan, V.N. Singh, A.K. Srivastava and Parth Vashishtha, Energy Technology, July 2019, DOI: 10.1002/ente.201900615.
- An electrochemical biosensor based on novel butylamine capped CZTS nanoparticles immobilized by uricase for uric acid detection, Shefali Jain, Shilpi Verma, Shibu Saha, Surinder P. Singh and Shailesh Narain Sharma, Biosensors and Bioelectronics, Vol. 127, Issue 15, pages 135-141, Feb. 2019.
- Response to comments on “Reduced band gap & charge recombination rate in Se doped α-Bi2O3 leads to enhanced photoelectrochemical and photocatalytic performance: Theoretical & experimental insight” , Rishabh Sharma, Manika Khanuja, Shailesh Narain Sharma, Om Prakash Sinha [Int J Hydrogen Energy 42, , 20638–20648, 2017 International Journal of Hydrogen Energy,Volume 43, Issue 1, Pages 470-471, 4 January 2018.
- Enhanced photoelectrochemical performance of TiO2photoanode decorated with Pd-carbon core shell nanoparticles, Rishabh Sharma, NishaKodan, Vinod Singh, Shailesh Narain Sharma, Om Prakash Sinha, Renewable Energy,Vol. 134, April 2019, pages 1232-1239.
- rGO integrated MEHPPV and P3HT polymer blends for bulk hetero junction solar cells: A comparative insight’, Sumit Kumar,Jitendra Kumar, Shailesh Narain Sharma, Shubdha Srivastava, Optik, Volume 178, Pages 411-421, February 2019, DOI:10.1016/j.ijleo.2018.09.148
- Synthesis and Application of PHT-TiO2Nanohybrid for Amperometric Glucose Detection in Human Saliva Sample, Sachin Kadian, Bhramdutt Arya, Sumit Kumar,Shailesh Narain Sharma, Electroanalysis(Wiley), vol.30, pp1-11, 2019, DOI:10.1002/elan.201800207
- Investigation of annealing effects on TiO2 nanotubes synthesized by a hydrothermal method for hybrid solar cells’, Sumit Kumar, Tanvi Vats, Shailesh Narain Sharma,Jitendra Kumar,Optik 171, 492-500, 2018, DOI: 10.1016/j.ijleo.2018.06.045.
- Enhanced Luminescence Efficiency of Wet Chemical Route Synthesized InP-based Quantum Dots by a Novel Method, Akanksha Singh, Chavvi Sharma, Mahesh Sharma, Reena Kumari, Ritu Srivastava and Shailesh Narain Sharma, Journal of Luminescence 198, 108-116, June 2018.
- Efficient colloidal route to pure phase kesterite Cu2ZnSnS4 (CZTS) nanocrystals with controlled shape and structure, Shefali Jain, Parul Chawla, Shailesh Narain Sharma, Dinesh Singh, N. Vijayan, Superlattices and Microstructures, Volume 119, , 59-71, July 2018.
- Precursor ratio optimizations for the synthesis of colloidal CZTS nanoparticles for photocatalytic degradation of malachite green, Shefali jain, Akanksha Singh, Govind Gupta, N. Vijayan, Shailesh Narain Sharma, Journal of Physics and Chemistry of Solids, Vol.122, 8-18, November 2018.
- Time-controlled synthesis mechanism analysis of kesterite-phased Cu2ZnSnS4nanorods via colloidal route, Shefali Jain, Dinesh Singh, N. Vijayan and Shailesh Narain Sharma, Applied Nanoscience, Vol.8, issue 3, 435-446, March 2018,DOI:10.1007/s13204-018-0781-1.
- Transition from CZTSe to CZTS via multicomponent CZTSSe: Potential low cost photovoltaic absorbers, Parul Chawla, Shefali Jain, Parth Vashishtha, Mansoor Ahamed, Shailesh Narain Sharma, Superlattices and Microstructures Volume 113, January 2018, 502-509.
- Reduced band gap & charge recombination rate in Se doped α-Bi2O3 leads to enhanced photoelectrochemical and photocatalytic performance: Theoretical &experimental insight,Rishabh Sharma, Manika Khanuja, Shailesh Narain Sharma, Om Prakash Sinha, International Journal of Hydrogen Energy, Volume 42, Issue 32, 10 August 2017, 20638-20648.
- Comparison of Polymeric Stabilization of Organic:Inorganic (MEH-PPV:TiO2) Hybrid Composites Synthesized via Different Routes, Tanu Mittal, Sangeeta Tiwari, Aarti Mehta, S.K. Tiwari and Shailesh Narain Sharma, Colloid and Polymer Science, Volume 295, Issue 7, 1097–1107, July 2017.
- Tapping the Potential of Trioctyl Phosphine (TOP) in the Realization of Highly Luminescent Blue-Emitting Colloidal Indium Phosphide (InP) Quantum Dots, Akanksha Singh, Parul Chawla, Shefali Jain and Shailesh Narain Sharma, Physica E: Low-dimensional Systems and Nanostructures, Volume 90, 175-182, June 2017.
- Development of InP-Based Polymer Nanocomposites byWet-Route For Optoelectronic Devices, Shailesh Narain Sharma, Akanksha Prakash and Shefali Jain, Colloid and Polymer Science, Volume 295, Issue 6, pp985–993, June 2017.
Current & Past Students
- Dr.Amit Kumar
- Dr. Omwati
- Dr. Manisha Bajpai
- Dr. Priyanka Tyagi
- Dr. Razi Ahmad
- Dr. Harneet Kaur
- Dr. Kalpana Agarwal
- Dr. Ritu Verma
- Dr. Ramashanker Gupta
- Dr. Amit Kumar Gangwar
- Dr. Satbir Singh
- Dr. Pawan Kumar
- Dr. M.Ramar(Asst. Professor, Tamilnadu University)
- Dr. Kalpana Agarwal, DST WS
- Mr. Ashish Kumar(Ph.D.Submitted)
- Mr. Sudheer Singh Rawat (Asst. Professor, Uttarakhand University)
- Ms. Chhavi
- Mr. Harishit Sharma, UGC SRF
- Ms.Lalita, UGC JRF
- Ms. Divya, CSIR-JRF
- Mr. Ankur, CSIR-SRF
- Ms Nikita Vashistha, CSIR-SRF
- Mr. Amit Chuadhari, CSIR-SRF
- Mr. Saurabh, CSIR-JRF
- Mr. Kapil
- Ms. Pooja Chauhan, CSIR-SRF
- Ms.Saloni Sharma, UGC-JRF
- Ms. Kanika, CSIR-SRF
- Mr. Girija Shankar, CSIR-SRF
- Mr. Pradeep Kashyap, CSIR-SRF
- Mr. Prashant Tripathi, CSIR-RA
- Dr. Subhda Srivastava, RA(DBT-Project)
- Dr. Garima Kedawat, RA-II(Security ink Project)
- Dr. Vikash Tripathi, DST-NPDF
- Ms. Archana, CSIR-SRF
- Ms. Pooja, SRF
- Ms. Jyoti, SRF
- Ms. Divya, SRF
- Ms. Naina, DST-WS
- Ms.Sonali, DST-WS
Team
Dr. Ritu Srivastava
Head, Chief Scientist
Email: ritu@nplindia.org
Phone: +91-11- 45608644
Scientists
- Dr. Bipin Kumar Gupta
Principal Scientist
Email: guptabgupta@nplindia.org
Phone: +91-11-4560 8284 - Dr. C.K. Suman
Principal Scientist
Email: sumanck@nplindia.org
Phone: +91-11-4560 9487
Technical Support
- Ms. Reena
Technical Officer - Mr. Jitenra Yadav
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