Results 91 to 100 of about 1,319,114 (288)

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Ultrafast dynamics in InAs quantum dot and GaInNAs quantum well semiconductor heterostructures [PDF]

, 2007
The quantum confined Stark effect (QCSE) and ultrafast absorption dynamics near the bandedge have been investigated in p-i-n waveguides comprising quantum confined heterostructures grown on GaAs substrates, for emission at 1.3um.
Malins, David B
core   +2 more sources

Graphene-based materials for photocatalytic and environmental sensing applications

Results in Engineering
Graphene Quantum Dots (GQDs) have emerged as promising materials, finding extensive applications in environmental fields such as catalysis, sensors, green fuels, and energy storage.
Sujatha Sadana, Natarajan Rajamohan, Rajasimman Manivasagan, Nitin Raut, Santhosh Paramasivam, Gianluca Gatto, Amit Kumar   +6 more
doaj   +1 more source

Transport through graphene quantum dots

Reports on Progress in Physics, 2012
We review transport experiments on graphene quantum dots and narrow graphene constrictions. In a quantum dot, electrons are confined in all lateral dimensions, offering the possibility for detailed investigation and controlled manipulation of individual quantum systems.
Güttinger J, Molitor F, Stampfer C, Schnez S, Jacobsen A, Dröscher S, Ihn T, Ensslin K   +7 more
openaire   +4 more sources

CVD Grown Hybrid MoSe2–WSe2 Lateral/Vertical Heterostructures With Strong Interlayer Exciton Emission

Advanced Materials, EarlyView.
A scalable bottom‐up CVD methodology, based on liquid transition metal salt precursors, is presented for the controlled growth of two high‐quality MoSe2–WSe2 heterostructures (HSs): purely lateral (HS I) and hybrid lateral/vertical (HS II), by simply adjusting precursor concentration.
Md Tarik Hossain, Sai Shradha, Axel Printschler, Julian Picker, Luc F. Oswald, Julian Führer, Nicole Engel, Honey Jayeshkumar Shah, Christof Neumann, Daria I. Markina, Moritz Quincke, Johannes Biskupek, Kenji Watanabe, Takashi Taniguchi, Ute Kaiser, Bernhard Urbaszek, Andrey Turchanin   +16 more
wiley   +1 more source

Facile Synthesis of Formate-Functionalized Graphene Quantum Dots [PDF]

, 2019
Graphene quantum dots have proven useful for a variety of applications due to their impressive bandgap tunability, which can be achieved through structural modification methods including edge functionalization and doping.
Jude Clapper (6088958), Jonathan, Bruce, Jude, Clapper, Jonathan Bruce (6441491)   +3 more
core   +1 more source

Enhancing the performance and antifouling properties of reverse osmosis membranes by graphene quantum dots for water desalination

Applied Water Science
In the next decades, some countries will suffer from water shortage because of the increased population and the increased percentage of economic development.
Eman A. Fadl, Osama Elsahy, S. Kandil, Ashraf Morsy   +3 more
doaj   +1 more source

Sensitivity to Heavy-Metal Ions of Unfolded Fullerene Quantum Dots

Sensors, 2017
A novel type of graphene-like quantum dots, synthesized by oxidation and cage-opening of C60 buckminsterfullerene, has been studied as a fluorescent and absorptive probe for heavy-metal ions. The lattice structure of such unfolded fullerene quantum dots (
Erica Ciotta, Stefano Paoloni, Maria Richetta, Paolo Prosposito, Pietro Tagliatesta, Chiara Lorecchio, Iole Venditti, Ilaria Fratoddi, Stefano Casciardi, Roberto Pizzoferrato   +9 more
doaj   +1 more source

Tailoring Symmetry Breaking in Engineered van der Waals Superlattices

Advanced Materials, EarlyView.
We pioneer a scheme to tailor superpotentials in graphene based on intrinsic substrate electronic orders rather than twist angle. The resulting superpotential folds graphene's Dirac cones to either Γ$\Gamma$ or K‐points, leading to distinct symmetry behaviors.
Keda Jin, Lennart Klebl, Zachary A. H. Goodwin, Junting Zhao, Felix Lüpke, Dante M. Kennes, Jose Martinez‐Castro, Markus Ternes   +7 more
wiley   +1 more source

Observation of cooper pair splitting and andreev bound states in carbon nanotubes [PDF]

, 2014
In this thesis, we investigate Cooper pair splitting in double quantum dot devices made from carbon nanotubes. We present transport measurements in which the controlled splitting of Cooper pairs dominates the current through such a device, reaching ...
Schindele, Jens Oliver
core   +1 more source