Results 31 to 40 of about 19,559 (260)
Fast response ZnO/PVA nanocomposite-based photodiodes modified by graphene quantum dots
Materials & Design, 2019 In this paper, a new class of the polymer-based photodetectors is introduced. Poly (vinyl alcohol) is used as the host polymer and ZnO@graphene quantum dots utilized as the filler of the polymer matrix.
Seyedeh Soraya Mousavi +2 more
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Graphene quantum dots hybrids in energy storage/conversion Systems—State-of-the-art and advances
Hybrid AdvancesGraphene quantum dots are tiny (sizes of few nm) zero dimensional crystalline nanoentities, inheriting noteworthy optical/electronic, fluorescence, magnetic, quantum confinements, and surface/edge properties for scorching nanotechnology areas ranging ...
Ayesha Kausar
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Particle & Particle Systems Characterization, 2013 Graphene quantum dots (GQDs) are nanometer‐sized fragments of graphene that show unique properties, which makes them interesting candidates for a whole range of new applications. This review article gives an overview of the synthesis, properties and applications of GQDs. Synthesis methods discussed include top‐down and bottom‐up approaches.
Mitchell Bacon +2 more
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Charge detection in graphene quantum dots [PDF]
Applied Physics Letters, 2008 We report measurements on a graphene quantum dot with an integrated graphene charge detector. The quantum dot device consists of a graphene island (diameter of ∼200 nm) connected to source and drain contacts via two narrow graphene constrictions. From Coulomb diamond measurements a charging energy of 4.3 meV is extracted.
Guettinger, J. +5 more
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Study on the Terahertz Spectroscopy Properties of Graphene Quantum Dots Based on Microfluidic Chip
International Journal of OpticsGraphene quantum dots are quasi-zero-dimensional nanomaterials with unique physical and chemical properties. This study utilized a terahertz (THz) time-domain spectroscopy system to analyze the absorption characteristics of THz-waves by graphene quantum ...
Zhuang Peng +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The intrinsic distortion‐rich lattice of HEPBA with GQD‐enabled microstrain engineering establishes a mechanistic route toward high‐performance alkaline hydrogen evolution reaction. HEPBA inherently feature heterogeneous local coordination environments arising from multimetal incorporation, while properly introducing GQD during coprecipitation ...
Mia Rinawati +10 more
wiley +1 more source
Graphene quantum dots in photodynamic therapy
Nanoscale Advances, 2020 Single-atomic-layered graphene quantum dots with lateral sizes of ∼5 and 20 nm are not photosensitizers for photodynamic therapy.
Jiayi Chen +7 more
openaire +3 more sources
Advanced Functional Materials, EarlyView.A low‐Pt catalyst supported on zeolitic imidazolate framework (ZIF‐8)‐derived porous carbon and graphite is integrated with a halide perovskite photovoltaic, yielding cathodes that achieve a high photocurrent density (∼20 mA cm−2) under simulated sunlight and exhibit remarkable stability in acidic media over several days, thereby demonstrating a ...
Na Yeong Oh +12 more
wiley +1 more source
Molecules, 2021 We have investigated highly flexible memristive devices using reduced graphene oxide (RGO) nanosheet nanocomposites with an embedded GQD Layer. Resistive switching behavior of poly (4-vinylphenol):graphene quantum dot (PVP:GQD) composite and HfOx hybrid ...
Jin Mo Kim, Sung Won Hwang
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Quantum dots and spin qubits in graphene [PDF]
Nanotechnology, 2010 23 pages, 10 figures, topical review prepared for ...
Recher, Patrik, Trauzettel, Bjoern
openaire +3 more sources