Results 11 to 20 of about 19,559 (260)

Graphene based quantum dots [PDF]

Journal of Physics: Condensed Matter, 2010
17pages, 4figures ...
Zhang, H G, Hu, H, Pan, Y, Mao, J H, Gao, M, Guo, H M, Du, S X, Greber, T, Gao, H J   +8 more
openaire   +4 more sources

Interplay of structure and photophysics of individualized rod-shaped graphene quantum dots with up to 132 sp² carbon atoms

Nature Communications, 2023
Nanographene materials are promising building blocks for the growing field of low-dimensional materials for optics, electronics and biophotonics applications.
Daniel Medina-Lopez, Thomas Liu, Silvio Osella, Hugo Levy-Falk, Nicolas Rolland, Christine Elias, Gaspard Huber, Pranav Ticku, Loïc Rondin, Bruno Jousselme, David Beljonne, Jean-Sébastien Lauret, Stephane Campidelli   +12 more
doaj   +1 more source

Quantum Dot Behavior in Graphene Nanoconstrictions [PDF]

Nano Letters, 2009
published version: 24 pages, 9 figures (includes supplementary information)
Todd, Kathryn, Chou, Hung-Tao, Amasha, Sami, Goldhaber-Gordon, David   +3 more
openaire   +3 more sources

Spin-valley coupling in single-electron bilayer graphene quantum dots

Nature Communications, 2021
Understanding the interaction between spin and valley degrees of freedom in graphene-based quantum dots underpins their applications in electronics and quantum information.
L. Banszerus, S. Möller, C. Steiner, E. Icking, S. Trellenkamp, F. Lentz, K. Watanabe, T. Taniguchi, C. Volk, C. Stampfer   +9 more
doaj   +1 more source

Tunable Quantum Dots in Bilayer Graphene [PDF]

Nano Letters, 2007
5 pages, to appear in Nano ...
Milton Pereira, J., Vasilopoulos, P., Peeters, F.M.   +2 more
openaire   +4 more sources

Graphene Quantum Dots Modified with Metformin/Co(II) as Efficient Oxidation Catalyst [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2022
While one of the valuable approaches to obtaining a heterogeneous catalyst is supporting them on a high surface area supports, the strategy mainly suffers from the low number of chelating agents on most of the supports to grip the metal cations catalysts.
Saeid Nejati, Sajjad Keshipour, Mozhdeh Seyyedhamzeh   +2 more
doaj   +1 more source

Kondo effect and spin–orbit coupling in graphene quantum dots

Nature Communications, 2021
The Kondo effect has been observed in a variety of systems, including carbon nanotube quantum dots and graphene in the presence of impurities. Here, the authors report the observation of the Kondo effect in bilayer graphene quantum dots and study its ...
Annika Kurzmann, Yaakov Kleeorin, Chuyao Tong, Rebekka Garreis, Angelika Knothe, Marius Eich, Christopher Mittag, Carolin Gold, Folkert Kornelis de Vries, Kenji Watanabe, Takashi Taniguchi, Vladimir Fal’ko, Yigal Meir, Thomas Ihn, Klaus Ensslin   +14 more
doaj   +1 more source

Interaction between Graphene Nanoribbon and an Array of QDs: Introducing Nano Grating

Photonics, 2022
In this work, the interaction between an array of QDs and Graphene nanoribbon is modeled using dipole–dipole interaction. Then, based on the presented model, we study the linear optical properties of the considered system and find that by changing the ...
Sahar Armaghani, Ali Rostami, Peyman Mirtaheri   +2 more
doaj   +1 more source

Large terahertz electric dipole of a single graphene quantum dot

Physical Review Research, 2022
Graphene has recently emerged as an important material for optoelectronic applications owing to its unique properties. Here, we show that graphene is also appealing for the development of THz quantum optics when used for quantum dots.
Simon Messelot, Elisa Riccardi, Sylvain Massabeau, Federico Valmorra, Michael Rosticher, Kenji Watanabe, Takashi Taniguchi, Jérôme Tignon, Thomas Boulier, Vincent Dauvois, Matthieu Delbecq, Sukhdeep Dhillon, Sébastien Balibar, Takis Kontos, Juliette Mangeney   +14 more
doaj   +1 more source

Fluorescent Quantum Dots and Its Composites for Highly Sensitive Detection of Heavy Metal Ions and Pesticide Residues: A Review

Chemosensors, 2023
Quantum dots nanomaterials have attracted extensive interest for fluorescence chemical sensors due their attributes, such as excellent optical characteristics, quantum size effects, interface effects, etc. Moreover, the fluorescence properties of quantum
Zhezhe Wang, Bo Yao, Yawei Xiao, Xu Tian, Yude Wang   +4 more
doaj   +1 more source