K
Kalyan Kumar Chattopadhyay
Researcher at Jadavpur University
Publications - 472
Citations - 11358
Kalyan Kumar Chattopadhyay is an academic researcher from Jadavpur University. The author has contributed to research in topics: Field electron emission & Thin film. The author has an hindex of 47, co-authored 434 publications receiving 9283 citations. Previous affiliations of Kalyan Kumar Chattopadhyay include Indian Association for the Cultivation of Science & Indian Institute of Engineering Science and Technology, Shibpur.
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Three dimensional Ag2O/TiO2 type-II (p-n) nanoheterojunctions for superior photocatalytic activity.
TL;DR: Heterostructure with molar ratio of TiO(2) and AgNO(3) of 4:1 exhibited best photocatalytic activity and the corresponding apparent first-order rate constant of 0.138 min(-1) which is 4 times than that of pure n-type microsphere.
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Recent developments in the emerging field of crystalline p-type transparent conducting oxide thin films
TL;DR: In this article, the origin of p-type conductivity in transparent oxides is discussed and an up-to-date and comprehensive description of different P-type transparent conducting oxide thin films is presented.
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Amino-functionalized graphene quantum dots: origin of tunable heterogeneous photoluminescence
G. Sandeep Kumar,Rajarshi Roy,Dipayan Sen,Uttam Kumar Ghorai,Ranjit Thapa,Nilesh Mazumder,Subhajit Saha,Kalyan Kumar Chattopadhyay +7 more
TL;DR: Comprehensive theoretical and experimental analysis revealed that newly created energy levels can exist as an interband within the energy gap in functionalized graphene quantum structures yielding excitation dependent tunable PL for optoelectronic applications.
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Low-temperature deposition of ZnO thin films on PET and glass substrates by DC-sputtering technique
Arghya Narayan Banerjee,Chandan Kumar Ghosh,Kalyan Kumar Chattopadhyay,Hideki Minoura,Ajay Krishno Sarkar,Atsuya Akiba,Atsushi Kamiya,Tamio Endo +7 more
TL;DR: The structural, optical and electrical properties of ZnO thin films (260 - 490 nm thick) deposited by direct-current sputtering technique, at a relatively low-substrate temperature (363 K), onto polyethylene terephthalate and glass substrates have been investigated as discussed by the authors.
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Synthesis and characterization of aluminum-doped CdO thin films by sol–gel process
TL;DR: Aluminum-doped cadmium oxide (CdO:Al) thin films are deposited on glass substrates by the sol-gel dip-coating method, taking cadMium acetate dihydrate as the precursor material as mentioned in this paper.