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Novel Nanomaterials for Energy Harvesting, Energy Storage and Opto-electronic Device Applications
Novel Nanomaterials for Energy Harvesting, Energy Storage and Opto-electronic Device Applications
Fabrication of hybrid nanostructures (nanowires, nanorods, nanotubes, nanocubes, core-shell nanowires, etc.) and their multifunctional properties (electronic, magnetic, optical, electrochemical, photoelectrochemical, gas sensing, electrochemical sensing, etc.). As well as developing high-power density, high-energy density, eco-friendly and low-cost energy storage systems such as supercapacitor systems.
Development of low-cost techniques for the fabrication of large-area transparent conducting electrodes (TCE) using various physical and chemical processes such as crackle lithography, physical vapour deposition, and sputtering.
Development of various prototypes based on TCE, which demonstrate daily life applications such as defogger, smart windows, invisible EMI shielder, etc.
Novel Nanomaterials for Energy harvesting & storage
Novel Nanomaterials for Energy harvesting & storage
Unique one dimensional (1D) or three dimensional (3D) nano-architectures, core/shell type nanostructures and the nano-heterostructures of functional oxides have been designed in order to efficient absorption of the visible solar light and charge carrier separation required for the harvesting for solar lights in a photo-electrochemical cell. The study of solar water splitting, self-cleaning, photocatalysis, photo-switching and photovoltaic properties of the novel functional oxide nanostructures are the key focus of energy research. Unique nanostructure-based supercapacitor electrodes have also been designed for electrochemical storage to energy with high energy and power density.
Key Publications: Energy Storage Materials, 71, 103680 (2024), DOI: https://doi.org/10.1016/j.ensm.2024.103680 Paper Link, Journal of Power Sources, 64, 235515 (2024), DOI: https://doi.org/10.1016/j.jpowsour.2024.235515 Paper Link, ACS Applied Materials & Interfaces, (2024), DOI: https://doi.org/10.1021/acsami.4c04445 Paper Link, ACS Applied Energy Materials, (2023), DOI: https://doi.org/10.1021/acsaem.3c02237 Paper Link, International Journal of Hydrogen Energy (2023), DOI: https://doi.org/10.1016/j.ijhydene.2023.07.064 Paper Link, ACS Applied Polymer Materials 5(6), 4088 (2023), DOI: https://doi.org/10.1021/acsapm.3c00311 Paper Link, ChemCatChem, 11, 6355 (2019) DOI: 10.1002/cctc.201901836 Paper Link, Nanoscale, 10, 13130-13139 (2018) DOI: 10.1039/C8NR02508H. Paper Link, Journal of Materials Chemistry A, 5, 21715-21725 (2017). Paper Link, ACS Applied Materials & Interfaces, 8 (32), 20786 (2016). Paper Link, Journal of Materials Chemistry A, 2013, 1, 12759. Paper Link,
Nano-structures for energy conversion and storage
Low-cost Large Area Transparent Conducting Electrodes(TCEs) and their Applications
Low-cost Large Area Transparent Conducting Electrodes(TCEs) and their Applications
Development of low-cost techniques for the fabrication of large-area transparent conducting electrodes (TCE) using various physical and chemical processes such as crackle lithography, physical vapour deposition, and sputtering. Use of such TCE in the development of low-cost smart switchable glasses (electrochromic, thermochromic, etc.), invisible EMI shields, and various optoelectronic applications.
Based on these calculations of cost-reduction of hybrid electrodes compared to ITO, one technology project started with an industrial partner, Hind High Vacuum Pvt. Ltd., where we are developing a 1 sq. ft. area of hybrid electrodes for various applications demonstrated as prototypes for proof of concept. Market research and dissemination of hybrid electrodes for market sensitization is a major objective of this project.
Key Publications: Journal of Materials Chemistry A, (2024), DOI: https://doi.org/10.1039/D4TA03322A Paper Link, ACS Applied Materials & Interfaces (2023), DOI: https://doi.org/10.1021/acsami.3c11337 Paper Link, Materials Advances 4, 923 (2023), DOI: https://doi.org/10.1039/D2MA01007K Paper Link, Journal of Materials Chemistry A, 10, 23265 (2022) DOI: https://doi.org/10.1039/D2TA05973H Paper Link, Materials Letters, 312, 131724 (2022) DOI:10.1016/j.matlet.2022.131724 Paper Link, Advanced Materials Technologies, 2101120 (2021) DOI:10.1002/admt.202101120 Paper Link, Bulletin of Materials Science 43, 187 (2020) DOI:h ttps://doi.org/10.1007/s12034-020-02159-7 . Paper Link, Materials Chemistry and Physics 239, 121997 (2020) DOI: 10.1039/C8NR02508H. Paper Link, Journal of Materials Chemistry C, 5, 5917-5922 (2017). Paper Link
Design and development of Smart Window technologies
Design and development of Smart Window technologies
There is a great demand for smart partitions to serve as wide-area switchable gates for light transactions across defined spaces at offices, public locations as well as homes. Partitions or windows that are in use presently are simply transparent at best and the desired degree of see-through visibility is achieved with permanent fixtures such as screens, curtains or such combinations. We have various new classes of devices with a toggle option between opaque (T~5%) and transparent states (T~ 85%).
Key Publication: Small, 2403156 (2024), DOI: https://doi.org/10.1002/smll.202403156 Paper Link, Small, 2405467 (2024), DOI: https://doi.org/10.1002/smll.202405467 Paper Link, Journal of Materials Chemistry A, (2024), DOI: https://doi.org/10.1039/D4TA03322A Paper Link, Journal of Materials Chemistry C, (2024), DOI: https://doi.org/10.1039/D4TC02236J Paper Link, ACS Applied Materials & Interfaces 15, 19111 (2023), DOI: https://doi.org/10.1021/acsami.2c22638 Paper Link
Prototypes developed based on Hybrid Transparent Electrodes
Prototypes developed based on Hybrid Transparent Electrodes
Instrumental facilities
Instrumental facilities
Growth and Fabrication units
3D printer (Zmorph 2.0 SX)
Automated glass cleaning
Spray coater (Spray pyrolysis)
Sputtering and evaporation unit (HHV systems)
ITO/AZO sputtering unit (Smart Coat 3.0 HHV)
Anodization unit
Measurement and Characterization Units
Environmental testing chamber (Espeq Japan)
Gas sensing (CeNS facility)
Solar simulator (Enli Tech)
Source measure unit (Keithley 4200 SMU)
Probe station Cascade Microtech EPS 150 TRIAX.
Optical profiler (Bruker)
Electrochemical(with photo) work station (Metrohm AutoLab PGSTAT100N & CHI 660E)
FESEM & EDAX (Hitachi SEM S‐3400N and FEI, FESEM) & (TESCAN+Bruker)
XRD (Philips, Panalytical)
Vibrating sample magnetometer (Lakeshore 7144)
UV-vis spectrofluorometer (Horiba Jobin, Fluorolog-3 & Perkin Elmer 750)
Furnaces
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