Search Results - "Giri, P. K."

Evidence of oxygen vacancy induced room temperature ferromagnetism in solvothermally synthesized undoped TiO2 nanoribbons by Santara, Batakrushna, Giri, P K, Imakita, Kenji, Fujii, Minoru

“…We report on the oxygen vacancy induced ferromagnetism (FM) at and above room temperature in undoped TiO2 nanoporous nanoribbons synthesized by a solvothermal…”
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Precise Tuning of the Thickness and Optical Properties of Highly Stable 2D Organometal Halide Perovskite Nanosheets through a Solvothermal Process and Their Applications as a White LED and a Fast Photodetector by Parveen, Sumaiya, Paul, Kamal Kumar, Giri, P. K

“…Precise control of the thickness of large-area two-dimensional (2D) organometal halide perovskite layers is extremely challenging owing to the inherent…”
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Quantitative Understanding of Charge-Transfer-Mediated Fe3+ Sensing and Fast Photoresponse by N‑Doped Graphene Quantum Dots Decorated on Plasmonic Au Nanoparticles by Das, Ruma, Sugimoto, Hiroshi, Fujii, Minoru, Giri, P. K

“…The formation of a heterostructure with plasmonic nanoparticles drastically alters the optoelectronic properties of graphene quantum dots (GQDs), resulting in…”
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Strong Cathodoluminescence and Fast Photoresponse from Embedded CH3NH3PbBr3 Nanoparticles Exhibiting High Ambient Stability by Ghosh, Joydip, Ghosh, Ramesh, Giri, P. K

“…This study presents a comprehensive analysis of the strong cathodoluminescence (CL), photoluminescence (PL), and photoresponse characteristics of CH3NH3PbBr3…”
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Two-Dimensional Transition Metal Dichalcogenide Based Biosensors: From Fundamentals to Healthcare Applications by Mia, Abdul Kaium, Meyyappan, M, Giri, P K

“…There has been an exponential surge in reports on two-dimensional (2D) materials ever since the discovery of graphene in 2004. Transition metal dichalcogenides…”
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Evidence for Ti Interstitial Induced Extended Visible Absorption and Near Infrared Photoluminescence from Undoped TiO2 Nanoribbons: An In Situ Photoluminescence Study by Santara, Batakrushna, Giri, P. K, Imakita, Kenji, Fujii, Minoru

“…Despite decades of research on the role of intrinsic defects in enhancing the performance of reduced TiO2 based materials, unambiguous identification of…”
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Evolution of Nitrogen-Related Defects in Graphitic Carbon Nitride Nanosheets Probed by Positron Annihilation and Photoluminescence Spectroscopy by Choudhury, Biswajit, Paul, Kamal Kumar, Sanyal, Dirtha, Hazarika, Anil, Giri, P. K

“…Defects play a pivotal role in the device performance of a photocatalytic, light-emitting, or photovoltaic system. Herein, graphitic carbon nitride (g-C3N4)…”
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Room temperature ferromagnetism with high magnetic moment and optical properties of Co doped ZnO nanorods synthesized by a solvothermal route by Pal, Bappaditya, Dhara, Soumen, Giri, P.K., Sarkar, D.

“…•High temperature ferromagnetism with high magnetic moment in Zn1−xCoxO nanorods.•Higher magnetic moment in doped ZnO nanorods than that in doped…”
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Origin of visible and near-infrared photoluminescence from chemically etched Si nanowires decorated with arbitrarily shaped Si nanocrystals by Ghosh, Ramesh, Giri, P K, Imakita, Kenji, Fujii, Minoru

“…Arrays of vertically aligned single crystalline Si nanowires (NWs) decorated with arbitrarily shaped Si nanocrystals (NCs) have been fabricated by a silver…”
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Trion-Inhibited Strong Excitonic Emission and Broadband Giant Photoresponsivity from Chemical Vapor-Deposited Monolayer MoS2 Grown in Situ on TiO2 Nanostructure by Paul, Kamal Kumar, Mawlong, Larionette P. L, Giri, P. K

“…2D material-based heterostructures often prepared by wet transfer technique suffers from poor interface and contamination issues and it results in inferior…”
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Graphene-Assisted Controlled Growth of Highly Aligned ZnO Nanorods and Nanoribbons: Growth Mechanism and Photoluminescence Properties by Biroju, Ravi K, Giri, P. K, Dhara, Soumen, Imakita, Kenji, Fujii, Minoru

“…We demonstrate graphene-assisted controlled fabrication of various ZnO 1D nanostructures on the SiO2/graphene substrate at a low temperature (540 °C) and…”
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Diameter dependence of interwall separation and strain in multiwalled carbon nanotubes probed by X-ray diffraction and Raman scattering studies by Singh, Dilip K., Iyer, P.K., Giri, P.K.

“…We have made a systematic study on the diameter dependent spectral features in X-ray diffraction (XRD) and Raman scattering studies of multiwalled carbon…”
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Enhanced UV photosensitivity from rapid thermal annealed vertically aligned ZnO nanowires by Dhara, Soumen, Giri, PK

“…We report on the major improvement in UV photosensitivity and faster photoresponse from vertically aligned ZnO nanowires (NWs) by means of rapid thermal…”
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Emerging doping strategies in two-dimensional hybrid perovskite semiconductors for cutting edge optoelectronics applications by Parveen, Sumaiya, Giri, P. K

“…The past decade has witnessed tremendous progress in metal halide perovskites, particularly in lead (Pb) halide perovskites, because of their extraordinary…”
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Role of oxygen functional groups and attachment of Au nanoparticles on graphene oxide sheets for improved photodetection performance by Singh, Ningthoujam Somorjit, Mia, Abdul Kaium, Giri, P. K

“…Integrating low-dimensional graphene oxide (GO) with conventional Si technology offers innovative strategies for developing ultrafast wideband photodetectors…”
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Recent Advances in the Growth Strategies, Multifunctional Properties, and Emerging Applications of Two‐Dimensional Non‐van der Waals Bismuth Oxychalcogenides and Prospective Heterostructures by Hossain, Md Tarik, Jena, Tadasha, Giri, P. K.

“…With the advent of two‐dimensional (2D) van der Waals (vdW) materials, many non‐van der Waals (nvdW) materials have been synthesized and are being exploited…”
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Hydrogen Evolution Reaction Activity of Graphene–MoS2 van der Waals Heterostructures by Biroju, Ravi K, Das, Deya, Sharma, Rahul, Pal, Shubhadeep, Mawlong, Larionette P. L, Bhorkar, Kapil, Giri, P. K, Singh, Abhishek K, Narayanan, Tharangattu N

“…Determining a suitable noble-metal-free catalyst for hydrogen evolution reaction (HER) by photoelectrocatalytic (PEC) water splitting is an enduring challenge…”
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Role of molecular interactions and structural defects in the efficient fluorescence quenching by carbon nanotubes by Singh, Dilip K., Iyer, Parameswar K., Giri, P.K.

“…Fluorescence quenching effect of single walled carbon nanotubes (SWCNTs) and multiwalled carbon nanotubes (MWCNTs) on three most common fluorophores…”
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Evidence for intrinsic defects and nanopores as hotspots in 2D PdSe2 dendrites for plasmon-free SERS substrate with a high enhancement factor by Jena, Tadasha, Hossain, Md Tarik, Nath, Upasana, Sarma, Manabendra, Sugimoto, Hiroshi, Fujii, Minoru, Giri, P. K.

“…Surface-enhanced Raman spectroscopy (SERS), a very powerful tool for the identification of molecular species, has relied mostly on noble metal-based substrates…”
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Role of Surface Plasmons and Hot Electrons on the Multi-Step Photocatalytic Decay by Defect Enriched Ag@TiO2 Nanorods under Visible Light by Paul, Kamal Kumar, Giri, P. K

“…Heterogeneous photocatalysis is of overriding significance for emerging energy and environment applications. Nanosized metal–semiconductor heterostructures…”
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