Results 11 to 20 of about 24,885 (302)

Chirality transfer from Graphene Quantum Dots [PDF]

Chemical Communications, 2016
Chiral graphene quantum dots were prepared by acidic exfoliation and oxidation of graphite, dialysis, and esterification with enantiomerically pure (R) or (S)‐2‐phenyl‐1‐propanol.
Martín, Nazario, Rodríguez Pérez, Laura, Vázquez Nakagawa, M., Herranz, M.A.   +3 more
core   +5 more sources

Electrochemical Method To Prepare Graphene Quantum Dots and Graphene Oxide Quantum Dots [PDF]

ACS Omega, 2017
In this study, we present the preparation of graphene quantum dots (GQDs) and graphene oxide quantum dots (GOQDs). GQDs/GOQDs are prepared by an easy electrochemical exfoliation method, in which two graphite rods are used as electrodes. The electrolyte used is a combination of citric acid and alkali hydroxide in water.
Satyaprakash Ahirwar, Sudhanshu Mallick, Dhirendra Bahadur   +2 more
doaj   +3 more sources

Fabrication of quantum-dot devices in graphene

Science and Technology of Advanced Materials, 2010
We describe our recent experimental results on the fabrication of quantum-dot devices in a graphene-based two-dimensional system. Graphene samples were prepared by micromechanical cleavage of graphite crystals on a SiO2/Si substrate.
Satoshi Moriyama, Yoshifumi Morita, Eiichiro Watanabe, Daiju Tsuya, Shinya Uji, Maki Shimizu and Koji Ishibashi
doaj   +3 more sources

Quantum Dots in Graphene [PDF]

Physical Review Letters, 2007
4 pages, 3 ...
Silvestrov, P. G., Efetov, K. B.
openaire   +3 more sources

Chiral Graphene Quantum Dots [PDF]

ACS Nano, 2016
Chiral nanostructures from metals and semiconductors attract wide interest as components for polarization-enabled optoelectronic devices. Similarly to other fields of nanotechnology, graphene-based materials can greatly enrich physical and chemical phenomena associated with optical and electronic properties of chiral nanostructures and facilitate their
Nozomu, Suzuki, Yichun, Wang, Paolo, Elvati, Zhi-Bei, Qu, Kyoungwon, Kim, Shuang, Jiang, Elizabeth, Baumeister, Jaewook, Lee, Bongjun, Yeom, Joong Hwan, Bahng, Jaebeom, Lee, Angela, Violi, Nicholas A, Kotov   +12 more
openaire   +2 more sources

Spin States in Graphene Quantum Dots [PDF]

Physical Review Letters, 2010
We measure the g-factor of spin states in graphene quantum dots and investigate the spin filling sequence of orbital states. Quantum dots made from graphene are considered as an ideal host for spin qubits due to small hyperfine coupling and spin-orbit
Frey, Tobias, Güttinger, Johannes, Ihn, Thomas, Ensslin, K., Libisch, Florian, Burgdörfer, Joachim, Stampfer, Christoph   +6 more
core   +5 more sources

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

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

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

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