Assistant Professor,
Bharati Vidyapeeth’s College of Engineering
Email id: rekha.bhardwaj@bharatividyapeeth.edu
Area of Interest: i) Solar energy nanomaterials.
ii) Physico-chemical characterization.
iii) Energy devices such as supercapacitor, Lithium-ion batteries
Thesis Topic: Study and Growth of Nano/Micro Structure of Nickel Sulphide Using Hydrothermal method for Energy devices
Doctorate of Philosophy (Ph.D.) in Physics Year: Feb 2022
Netaji subhas Institute of Technology, University
of Delhi,New Delhi India.
Master in Science (M.Sc.) Degree in Physics
University: M.du, University, Rohtak
Bachelor in Science (B.Sc.) Physics (Honours)
University: Kalindi college, University of Delhi
Teaching Experience:
B. Tech (Physics) Assistant Professor
BPIT, Rohini-110089
(IP University Delhi)
(2021 -2023)
Research experience:
Ph.D. Research (2016 – 2021)
NSIT, University of Delhi,
Job Description:
Synthesis of different kind of Organic/inorganic materials.
Deposition of thin films by spin coating/Thermal Evaporation techniques.
Properties studies by XRD, FE-SEM, NMR, FTIR, UV-Vis and TG/DTA techniques.
·
Thermal Evaporation Deposition System.
NMR, JEOL JNM-EXCP 400 MHz NMR spectrometer.
XRD, Bruker D8 Focus and D8 Advance.
Fluorescence Spectrometer, F-2500, Hitachi.
FTIR-2000 Spectrometer, Perkin Elmer.
UV-VIS Spectrophotometer, Lambda 35, Perkin Elmer.
Origin
EC-lab software
Full Prof software (Rietveld refinement)
I. Papers Published/Accepted in Journals
1. Rekha Bhardwaj and Ranjana Jha “Trisodium Citrate Assisted Morphology Controlled Synthesis of Nickel Sulphide Nanoparticles with Enhanced Cyclic Stability as Carbonaceous Free Electrode Material” Material Physics and Chemistry (Elsevier) SCI indexed https://doi.org/10.1016/j.matchemphys.2020.123581(Impact factor 4.094)
2. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Reetu Sharma “Comparative Study of the Electrochemical Properties of Mesoporous 1-D and 3-D Nano-Structure Rhombohedral Nickel Sulfide in Alkaline Electrolytes” Journal of Physics and Chemistry of Solids (Elsevier) SCI indexed https://doi.org/10.1016/j.jpcs.2020.109503( Impact factor 3.995)
3. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Reetu Sharma “Enhanced Electrocatalytic Activity of the Solvothermally Synthesized Mesoporous Rhombohedral Nickel Sulphide” Material Science in Semiconductors Processing (Elsevier) SCI indexed https://doi.org/10.1016/j.mssp.2020.105194 (Impact factor 3.927)
4. Rekha Bhardwaj, Ranjana Jha and Medha Bhushan “Improved Electro-Catalytic Performance with Enlarged Surface Area and Reduced Band Gap of Caterpillar and Cabbage like Nickel Sulphide Nanostructures” Applied Nanoscience (Springer)SCIE indexed10.1007/s13204-020-01488-7 (Impact factor 3.67)
5. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Reetu Sharma “Hydrothermally Prepared Nickel Disulphide Nanoparticles with Enhanced Areal Capacitance” Journal of material science and material in electronics (Springer) SCI indexed (impact factor 2.41) https://doi.org/10. 1007/s10854-020-05006-x
6. Rekha Bhardwaj, Ranjana Jha and Medha Bhushan Comparative Study of Electrocatalytic Activity of Single Phase Rhombohedral β-NiS Nanoparticles in Alkaline Electrolytes Material Science in Semiconductors Processing https://doi.org/10.1016/j.mssp.2021.105827(Impact factor 3.927)
7. Medha Bhushan, Ranjana Jha, Rekha Bhardwaj “Reduced band gap and diffusion controlled spherical n-type ZnS nanoparticles for absorption of UV-Vis region of solar spectrum”, Journal of Physics and Chemistry of Solids(Elsevier) SCI indexed https://doi.org/10.1016/j.jpcs.2019.05.018. (Impact factor-3.482)
8. Medha Bhushan, Ranjana, Reetu Sharma and Rekha Bhardwaj “Ethylene Diamine Mediated growth of 1, 2 and 3 Dimensional ZnS Nanostructures for Enhanced Photo catalytic and Super capacitor Electrode performance ”,Nanotechnology (IOP)https://doi.org/10.1088/1361-6528/ab7604 (impact 3.874)
9. Reetu Sharma, Ranjana Jha, Anjana Sarkar, Amit Kumar Sharma, Darshan Sharma , Medha Bhushan, Rekha Bhardwaj “Controlled growth of α-MoO3 nanostructures with enhanced optical and electrochemical properties without capping agents “, Ceramic International (Elsevier) https://doi.org/10.1016/j.ceramint.2020.06.085 (Impact factor 4.527)
10. Medha Bhushan, Ranjana Jha, Rekha Bhardwaj and Reetu Sharma Visible light emission and enhanced electrocatalytic activity of pure ZnS nanoparticles synthesized via thermal decomposition route “, Bulletein of Material Science (Springer) https://doi.org/10.1007/s12034-021-02546-8 (Impact factor 1.783)
11. Medha Bhushan, Ranjana Jha, Rekha Bhardwaj and Reetu Sharma Graphene-doped ZnS nanoparticles synthesized via hydrothermal route for enhanced electrocatalytic performance “, International Journal of Applied Ceramic Technology (Wiley) DOI: 10.1111/ijac.13801 (Impact factor 1.968)
12. Rekha Bhardwaj, Vanita Bhardwaj and Ranjana Jha Effect of Sulphur Sources on Electro-Catalytic, Structural and Morphology Properties of Nickel Sulphide “, Materials Physics and Chemistry (under review) manuscript number MATCHEMPHYS-D-23-01605
2. E-book chapter
1. Studies on Synthesis and Various Characteristics of Green Materials for Energy Conversion Applications, Ranjana Jha, Medha Bhushan and Rekha Bhardwaj (Springer publications)https://doi.org/10.1007/978-3-030-50108-2_1
2. Nano /Micro Structures of Nickel sulphide for Energy Storage and conversion Devices”, Rekha Bhardwaj, Ranjana Jha, Medha Bhushan “Advance Nanomaterials of the Springer e-book series (Accepted)
3. Medha Bhushan, Ranjana Jha, and Rekha Bhardwaj “Recent Strategies and Developments of ZnS Nanomaterials as Photocatalysts and Electrocatalysts “Advance Nanomaterials of the Springer ebook series (Accepted)
1. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Ritu Goel Review: Synthesis and Application of Nickel Sulphide Nanoparticle Journal of Basic and Applied Engineering Research (JBAER) p-ISSN: 2350-0077 e-ISSN: 2350-0255 .
2. Rekha Bhardwaj , Ranjana Jha and Medha Bhushan Review: Metal Disulphide used as Counter Electrode for Dye Sensitized Solar Cell Journal of Energy Research and Environmental Technology (JERET) p-ISSN:2394-157X
3. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Ajay Kumar Hydrothermal Synthesis of Multiple Phase Nickel Sulphide and Their Electro-catalytic Properties Advanced Materials and Radiation Physics (AMRP-2020) AIP Conf. Proc. 2352, 020075-1–020075-5; https://doi.org/10.1063/5.0052729
4. Rekha Bhardwaj, Ranjana Jha, Medha Bhushan and Reetu Sharma Electrical Study of Synthesized Nickel Sulphide Nanoparticles Material Today proceedings Journal, Elsevier DOI:10.1016/j.matpr.2021.07.138.
5. Reetu Sharma, Ranjana Jha, Anjana Sarkar, Amit Kumar Sharma, Medha Bhushan and Rekha Bhardwaj Synthesis & material properties of a-MoO3 nanoparticles Material Today proceedings Journal, Elsevier https://doi.org/10.1016/j.matpr.2021.08.092
6. Ritu Goel, Ranjana Jha, Medha Bhushan and Rekha Bhardwaj Hydrothermally synthesized nickel oxide (NiO) nano petals Material Today proceedings Journal, Elsevier https://doi.org/10.1016/j.matpr.2021.08.094
7. Medha Bhushan, Ranjana Jha, and Rekha Bhardwaj Serrated hexagonal ZnO Nanoparticles: Synthesis and its characterization Material Today proceedings Journal, Elsevier https://doi.org/10.1016/j.matpr.2021.05.686
8. Medha Bhushan, Ranjana Jha, Rekha Bhardwaj and Ritu Goel A Critique on Synthesis of 1-D Nanostructure of ZnS and its Potential Applications Journal of Basic and Applied Engineering Research p-ISSN: 2350-0077; e-ISSN: 2350-0255; Volume 5
9. Medha Bhushan, Ranjana Jha, Darshan Sharma, Nikhil Jindal, Rekha Bhardwaj and Ritu Goel “Graphitic Carbon Nitride (g-C3N4 ): An Effective Nano-material for Hydrogen Evolution Reaction” Clean & Green Energy: The Chemical and Environmental Aspects
4. Papers Presented in International/National Conferences
1. Poster presentation (Elimination of toxicity in solar cell) in International conference on “Advances in Nanomaterials and Nanotechnology (ICANN-2016)”at Jamia Millia Islamia, New Delhi held on 4th -5th November 2016.
2. Oral presentation (Nickel SulphideNanostructures:Application in thin film solar cells) in National Conference on “Clean &Green Energy: The chemical & Environment Aspects” at Bhaskaracharya College, New Delhi,held on 16th -17th February 2017.
3. Oral presentation (Nickel Sulphide Nanoparticles Synthesized by Co-precipitation method for Solar Energy Conversion) in National Conference on “Solid State Chemistry and Allied Areas” at Delhi Technological University, New Delhi,held on 1st -3rd July,2017.
4. Oral presentation (Nickel Sulphide Nanoparticle Synthesized by Hydrothermal method for Energy Storage Devices) in 6th International conference on “Ecotoxicology & Environmental Sciences(ICEES-2018)”at Netaji Subhas Institute of Technology, New Delhi held on 19th -21stFebruary 2018.
5. Oral presentation (Review: Synthesis and Application of Nickel Sulphide Nanoparticle) in International Conference on “Recent Trends in Applied Physical, Chemical,Mathematics,Statistics and Energy Technology for Sustainable Development” at Jawaharlal Nehru University, New Delhi, held on 19th May 2018.
6. Poster presentation (Electrical Study of synthesized nickel sulphide nanoparticles) in International Conference on Advances in Nanomaterials and Devices for Energy and Environment at ABV-IIITM Gwalior held on 27-29 Jan,2019.
7. Oral presentation(Metal Sulphides used as counter electrode in Dye Sensitized Solar cell) in International Conference on Renewable Energy and Sustainable Climate(SOLARIS 2019) at Jamia Millia Islamia, New Delhi held on on 7-9 February,2019.
8. Oral Presentation(Synthesis of unique Nickel Sulphide (Ni3S2 and NiS Nanostrutures morphology for counter electrode in Quantum Dot Dye Sensitized Solar Cell)on 14-15 March 2019,IAPE,Innovative Applied Energy, St Cross College, University of Oxford, United Kingdom.
1. Attended “India International Science Festival (IISF-2016)”at National Physics Laboratory, New Delhi held on 7th-11th December 2016.
2. Attended workshop on “Research Methodology and Scientific Writing” in Netaji Subhas Institute of Technology, New Delhi held on March 15-17, 2017.
3. Participated in the 5th Prof. Ved Ratna Memorial Lecture-2017 and a session on Demonstration Experiments in Physics organised by the IAPT,RC-1 on 15th April,2017.
4. Attended “The Faculty Development Programme” on “Functional Nanomaterials: Emerging Trends and Applications” in Amity University, Noida held on 20-22 June 2017.
5. Attended the short term course on Design of Experiments and Advanced Optimization Techniques in Panipat institute of Engineering and Technology, Panipat held on July 10-14, 2017.
6. DST sponsored Third Lecture workshop on Trans- disciplinary Areas of Research and Teaching by Shanti Swaroop Bhatnagar Awardees held on 15-16,2017.
7. Attended workshop BY GIAN (Global Initiative of Academic Networks) on“Organic LightEmitting Diodes” at Jamia Millia Islamia, New Delhi, conducted during December 26- 30,2017.
8. Attended workshop on Organic Photovoltaic’s &Electronics Technology, in National Physical Laboratory New Delhi, conducted during August 6th-10th,2018.