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544 results on '"Gupta, Govind"'

10. Investigation of charge carrier dynamics in Ti3C2Tx MXene for ultrafast photonics applications

Author

Rawat, Ankita, Chourasia, Nitesh K., Saini, Saurabh K., Rajput, Gaurav, Yadav, Aditya, Chourasia, Ritesh Kumar, Gupta, Govind, and Kulriya, P. K.

Subjects
Condensed Matter - Materials Science
Abstract

The rapid advancement of nanomaterials has paved the way for various technological breakthroughs, and MXenes, in particular, have gained substantial attention due to their unique properties such as high conductivity, broad-spectrum absorption strength, and tunable band gap. This article presents the impact of the process parameters on the structural and optical properties of Ti3C2Tx MXene for application in ultrafast dynamics. XRD along with Raman spectroscopy studies, confirmed the synthesis of a single phase from their MAX phase Ti3AlC2. The complete etching of Al and increase in the interplanar distance is also observed on centrifugation at very high speed. The ultrafast transient absorption spectroscopy used to understand the effect of centrifuge speed on the charge carrier dynamics and ultrafast spectrum of MXene displayed that the carrier lifetime is critically influenced by rotation per minute (rpm) e.g. faster decay lifetime at 10k rpm than 7k rpm. The electronic relaxation probed using the time-resolved photoluminescence (TRPL) technique exhibits an average decay time of 5.13 ns and 5.35 ns at the 7k and 10k rpm, respectively, which confirms that the optical properties of the MXene are strongly affected by the centrifuge speed. The synthesized MXene at 10k rpm typically suggests that radiative processes due to longer decay lifetime and experiences fewer nonradiative losses, resulting in enhanced luminescence properties., Comment: 21 pages , 6 figures

Published
2023

14. A Device to Develop Depth Map Using Principles of Stereoscopic Vision

Author

Agarwal, Lalit, Gupta, Govind, Tripathi, Anmol Mani, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Malik, Hasmat, editor, Mishra, Sukumar, editor, Sood, Y. R., editor, García Márquez, Fausto Pedro, editor, and Ustun, Taha Selim, editor

Published
2024
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31. An evolutionarily conserved mechanism controls reversible amyloids of pyruvate kinase via pH-sensing regions

Author

Cereghetti, Gea, Kissling, Vera M., Koch, Lisa M., Arm, Alexandra, Schmidt, Claudia C., Thüringer, Yannik, Zamboni, Nicola, Afanasyev, Pavel, Linsenmeier, Miriam, Eichmann, Cédric, Kroschwald, Sonja, Zhou, Jiangtao, Cao, Yiping, Pfizenmaier, Dorota M., Wiegand, Thomas, Cadalbert, Riccardo, Gupta, Govind, Boehringer, Daniel, Knowles, Tuomas P.J., Mezzenga, Raffaele, Arosio, Paolo, Riek, Roland, and Peter, Matthias

Published
2024
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32. Hazard assessment of hexagonal boron nitride and hexagonal boron nitride reinforced thermoplastic polyurethane composites using human skin and lung cells

Author

Carlin, Michela, Kaur, Jasreen, Ciobanu, Dinu Zinovie, Song, Zhengmei, Olsson, Magnus, Totu, Tiberiu, Gupta, Govind, Peng, Guotao, González, Viviana Jehová, Janica, Iwona, Pozo, Victor Fuster, Chortarea, Savvina, Buljan, Marija, Buerki-Thurnherr, Tina, Rio Castillo, Antonio Esau del, Thorat, Sanjay B., Bonaccorso, Francesco, Tubaro, Aurelia, Vazquez, Ester, Prato, Maurizio, Armirotti, Andrea, Wick, Peter, Bianco, Alberto, Fadeel, Bengt, and Pelin, Marco

Published
2024
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49. Tensor Completion-Based Data Imputation Framework for IoT-Based Underwater Sensor Network

Author

Gupta, Govind P., Rajak, Prince, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Sharma, Harish, editor, Shrivastava, Vivek, editor, Bharti, Kusum Kumari, editor, and Wang, Lipo, editor

Published
2023
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50. Towards Design of a Novel Android Malware Detection Framework Using Hybrid Deep Learning Techniques

Author

Dhabal, Gourab, Gupta, Govind, Kacprzyk, Janusz, Series Editor, Pal, Nikhil R., Advisory Editor, Bello Perez, Rafael, Advisory Editor, Corchado, Emilio S., Advisory Editor, Hagras, Hani, Advisory Editor, Kóczy, László T., Advisory Editor, Kreinovich, Vladik, Advisory Editor, Lin, Chin-Teng, Advisory Editor, Lu, Jie, Advisory Editor, Melin, Patricia, Advisory Editor, Nedjah, Nadia, Advisory Editor, Nguyen, Ngoc Thanh, Advisory Editor, Wang, Jun, Advisory Editor, Ranganathan, G., editor, Fernando, Xavier, editor, and Piramuthu, Selwyn, editor

Published
2023
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