V. V. S. Murty

International Rice Research Institute

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Mahesh Dhonde

Medi-Caps University

Kirti Sahu

Kamal Kumar Kushwah

JECRC University

Parag Bhargava

Indian Institute of Technology Bombay

Y. V. S. Rau

Indian Institute of Science Bangalore

Consuelo M. Perez

Siemens Healthcare (United States)

B. D. Webb

Agricultural Research Service

P. Soni

C. M. Paule

Philippine Rice Research Institute

Anant Shukla

Devi Ahilya Vishwavidyalaya

Cooperative Institutions

International Rice Research Institute

Pandit Deendayal Petroleum University

Indian Institute of Technology Bombay

Bangladesh Rice Research Institute

Devi Ahilya Vishwavidyalaya

Indian Institute of Technology Indore

Medi-Caps University

Indian Institute of Technology Gandhinagar

Instituto Superior Técnico

University of Allahabad

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Development of Binary Eutectic Organic Phase Change Materials for Solar Thermal Energy Storage Systems

International Journal of Innovative Technology and Exploring Engineering (2019)

Anuradha Gupta Kamal Kumar Kushwah Sujeet K. Mahobia V. V. S. Murty

Solar thermal energy storage unit anchored fatty acids as Phase Change Materials (PCMs) having narrow range of transition temperature and high latent heat of fusion. In this paper, a new novel eutectic PCM was developed by using a fatty acid (acetamide) and non-paraffin organic PCM (acetanilide) for a sharp melting point and high latent heat of fusion. The optimized eutectic PCM may be used for middle temperature range solar thermal energy storage systems. The binary mixture of acetamide and acetanilide at various compositions by mass ratio (wt%) was prepared and optimized experimentally for lowest value of melting point at a eutectic mixture composition of 60 wt% of acetamide and 40 wt% of acetanilide. Eutectic PCM was analyzed by Differential Scanning Calorimetry (DSC) and Field-Emission Scanning Electron Microscopy (FE-SEM). DSC results revealed that optimized eutectic PCM has a sharp melting point of 65.37°C and high latent heat of fusion of 224.67 kJ/kg. Accelerated thermal cycle testing of optimized eutectic PCM was performed for 100 melting and freezing cycles and change in melting temperature and latent heat of fusion was acceptable.

Phase-change material

Acetamide

Acetanilide

10.35940/ijitee.b7570.129219

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Review—Recent Advancements in Dye-Sensitized Solar Cells; From Photoelectrode to Counter Electrode

Journal of The Electrochemical Society (2022)

Mahesh Dhonde Kirti Sahu Malyaj Das Anand Yadav Pintu Ghosh

Dye-sensitized solar cells (DSSCs) are promising photovoltaic technology with diverse indoor and outdoor applications. DSSCs can be integrated with curtains and glasses to power various devices, including wireless sensors, computer network peripherals, internet-of-things (IoT) devices, and wearable electronics. DSSCs have the potential to become the future source of energy. However, their efficiency, stability, and industrial production still need to be scaled up. The present review encompasses these elements and the various changes that have occurred inside the DSSC over the last few years, including device structure, TiO 2 photoelectrode, novel electrolytes, new organic photosensitizers, efficient catalyst materials, and encapsulation strategies for sealing DSSC devices. We further discuss how the performance of each functional component of a DSSC has been enhanced as a result of the introduction of novel materials and manufacturing processes. In addition, we also briefly cover p-DSSCs and tandem DSSCs. Finally, the prospect of highly efficient and stable DSSCs is highlighted.

Auxiliary electrode

10.1149/1945-7111/ac741f

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Citations (44)

Solar cooker with latent heat storage systems: A review

Renewable and Sustainable Energy Reviews (2008)

Atul Sharma C.R. Chen V. V. S. Murty Anant Shukla

Cooker

Stove

10.1016/j.rser.2008.09.020

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Citations (107)

Evaluation of thermal performance of heat exchanger unit for parabolic solar cooker for off-place cooking

Indian Journal of Pure & Applied Physics (2007)

V. V. S. Murty Aman Gupta N. Mandloi Anant Shukla

Cooker

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Citations (15)

THE INHERITANCE OF BLAST-RESISTANCE IN INDIAN RICE VARIETY, HR-22

Ikushugaku zasshi (1969)

Shigehisa KIYOSAWA V. V. S. Murty

The Indian rice variety HR-22 is highly resistant to most of the Japanese strains of the blast fungus. This high resistance was determined to be mainly controlled by the gene Pi-kh allelic to the Pi-k.

Inheritance

Blast disease

10.1270/jsbbs1951.19.269

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Citations (21)

Structural and optical properties of silver doped TiO2 thin films for solar cell applications

Journal of Physics Conference Series (2014)

V. V. S. Murty Vinay Dashore

Electron collection efficiency and hence the device performance of a dye sensitized solar cell can be increased by localized surface plasmons (LSP) produced by the thin films of 2% silver doped TiO2 photo electrode. These films of silver doped TiO2 on glass substrates are prepared by pulsed laser deposition (PLD) method and have a lowest grain size of 8-31 nm. XRD, AFM and raman studies are made to characterize the surface at various annealing temperatures and annealing time durations. The lowest grain size of 8 nm of these films developed.

Pulsed Laser Deposition

10.1088/1742-6596/534/1/012030

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Novel synergistic combination of Al/N Co-doped TiO2 nanoparticles for highly efficient dye-sensitized solar cells

Solar Energy (2018)

Kirti Sahu Mahesh Dhonde V. V. S. Murty

10.1016/j.solener.2018.07.091

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Citations (24)

Facile synthesis of Cu/N co-doped TiO2 nanoparticles and their optical and electrical properties

Indian Journal of Physics (2018)

Mahesh Dhonde Kirti Sahu Krutarth Purohit V. V. S. Murty

Nanomaterials

Visible spectrum

10.1007/s12648-018-1275-4

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Citations (11)

Heritability of Yield and Other Traits and Inter-Relationships Among Traits in F2 To F5 Generations of Three Rice Crosses

Indian Journal of Genetics and Plant Breeding (The) (1986)

D. Subrahmanyam V. V. S. Murty A.V.D. Dorajee Rao

Heritability was estimated in nine rice populations (three crosses and three methods of selection). Heritability increased progressively from F2 to F6 generations. in general, by F6 almost all the characters in all the three crosses showed about 80% heritability with proportionate increase from generation to generation. The increase in heritability was maximum in early generations, i.e., F3 and F4 and less in later generations. in early generations, the breeder may depend on the characters having high heritability for advancing the lines.

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Efficiency of Solar Cells Based on Natural Dyes with Plasmonic Nanoparticle-Based Photo Anode

International Journal of Nanoscience (2018)

Kirti Sahu Mahesh Dhonde V. V. S. Murty

Cheap and efficient dye sensitized solar cells (DSSCs) can be prepared using natural dyes responding in the visible region of solar spectrum. Localized surface plasmon resonance (LSPR) plays a very important role for the improvement in the efficiency of DSSCs by using Plasmonic nanoparticles (PNPs) for exploiting the visible portion of the solar radiation by transferring the energy from dye to PNP. This energy transfers from dye to semiconductor TiO 2 through PNP which increases the overall photo catalytic activity. In the present study, Al-doped TiO 2 photoanodes were prepared via sol–gel route and used for DSSC application. Various natural and synthetic dyes are prepared and the optical transmittance and absorbance of the dyes are measured in the wavelength range of 250–850[Formula: see text]nm using UV-Vis spectroscopy and they are used in DSSC. Natural dyes extracted from fruits and synthetic dye based on Ruthenium (Ru) metal complex is used as sensitizers. Power conversion efficiency (PCE) of solar cells utilizing different dyes is compared. Out of the various natural dyes, beetroot and strawberry extracts based dyes show good absorbance in the visible range of electromagnetic spectrum. On the other hand, synthetic dyes based on Ru complex show strong absorbance over a wide range of visible spectrum. The absorbance increases with increase in concentration of Ru in ethanol. The extracts of beetroot, strawberry and mixed fruits show a peak in absorbance spectra at 501nm, 416nm and 332nm, respectively, indicating the absorption over a wide range of visible spectrum. Maximum efficiency of DSSCs utilizing PNPs sensitized with beetroot and strawberry dyes are found to be 1.5% and 1.3%, respectively.

Absorbance

Visible spectrum

Ultraviolet

10.1142/s0219581x18500424

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Citations (10)