Results 91 to 100 of about 60,665 (288)

Zero-energy states in triangular and trapezoidal graphene structures

, 2009
We derive analytical solutions for the zero-energy states of degenerate shell obtained as a singular eigenevalue problem found in tight-binding (TB) Hamiltonian of triangular graphene quantum dots with zigzag edges.
A. D. Güçlü, P. Hawrylak, P. Potasz, R. Saito   +3 more
core   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source

Coulomb dominated cavities in bilayer graphene

Physical Review Research, 2020
Electrostatic confinement in bilayer graphene van der Waals heterostructures provides a versatile platform for studying electronic transport in bilayer graphene nanostructures.
Marius Eich, Riccardo Pisoni, Chuyao Tong, Rebekka Garreis, Peter Rickhaus, Kenji Watanabe, Takashi Taniguchi, Thomas Ihn, Klaus Ensslin, Annika Kurzmann   +9 more
doaj   +1 more source

Graphene Nanoribbons with Smooth Edges Behave as Quantum Wires

, 2011
Graphene nanoribbons with perfect edges are predicted to exhibit interesting electronic and spintronic properties, notably quantum-confined bandgaps and magnetic edge states.
Dai, Hongjie, Guo, Jing, Jiao, Liying, Ouyang, Yijian, Wang, Hailiang, Wang, Xinran, Wu, Justin, Xie, Liming   +7 more
core   +1 more source

On‐Surface Indigo‐Based Bimolecular Coordination Networks with Programmable Regular or Vitreous Structure

Advanced Functional Materials, EarlyView.
A previously unreported coordination motif stabilising single Fe atoms by indigo chelation and pyridyl coordination on Au(111) has been revealed. By using planar tritopic pyridyl linkers (TPyB), extended 2D porous networks of indigo3(TPyB)2Fe6 form. These networks can be crystalline or vitreous and offer an environment where individual coordination ...
Hongxiang Xu, Ritam Chakraborty, Biao Yang, Dennis Meier, Joachim Reichert, Svetlana Klyatskaya, Mario Ruben, Shobhana Narasimhan, Johannes V. Barth, Anthoula C. Papageorgiou   +9 more
wiley   +1 more source

Surface Plasmon Resonance Enhanced Photoelectrochemical Sensing of Cysteine Based on Au Nanoparticle-Decorated ZnO@graphene Quantum Dots

Molecules
In this work, Au nanoparticle-decorated ZnO@graphene core–shell quantum dots (Au-ZnO@graphene QDs) were successfully prepared and firstly used to modify an ITO electrode for the construction of a novel photoelectrochemical biosensor (Au-ZnO@graphene QDs ...
Jiaxin Liu, Fancheng Lin, Yan Wang
doaj   +1 more source

Double quantum dots defined in bilayer graphene

, 2017
Artificial molecular states of double quantum dots defined in bilayer graphene are studied with the atomistic tight-binding and its low-energy continuum approximation.
Peeters, F. M., Szafran, B., Żebrowski, D. P.   +2 more
core   +1 more source

Resonant Tunneling in Graphene Pseudomagnetic Quantum Dots [PDF]

Nano Letters, 2013
Realistic relaxed configurations of triaxially strained graphene quantum dots are obtained from unbiased atomistic mechanical simulations. The local electronic structure and quantum transport characteristics of y-junctions based on such dots are studied, revealing that the quasi-uniform pseudomagnetic field induced by strain restricts transport to ...
Qi, Z., Bahamon, D.A., Pereira, V.M., Park, H.S., Campbell, D.K., Neto, A.H.C.   +5 more
openaire   +3 more sources

Near‐Infrared Organic Photovoltaic Electrodes for Subretinal Neurostimulation

Advanced Functional Materials, EarlyView.
Organic photovoltaic electrodes based on the D18:Y6 blend enable precise and light‐controlled activation of retinal ganglion cells in a degenerating retina. NIR Light‐driven activation of retinal ganglion cells, tunable stimulation parameters, and biocompatibility with human retinal organoids highlight their potential for next‐generation prosthetics ...
Andrea Corna, Katarina Gugujonovic, Manuela Schiek, Alessandro Bellapianta, Paul Werginz, Amelie Ziller, Markus Clark Scharber, Ahmad Salti, Matthias Bolz, Mihai Irimia‐Vladu, Günther Zeck   +10 more
wiley   +1 more source

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