Results 1 to 10 of about 833,453 (290)

Dynamic and transformable Cu12 cluster-based C-H···π-stacked porous supramolecular frameworks

open access: yesNature Communications, 2023
The assembly of cluster-based π-stacked porous supramolecular frameworks presents daunting challenges, including the design of suitable cluster building units, control of the sufficient C-H···π interactions, trade-off between structural dynamics and ...
Chengkai Zhang   +11 more
doaj   +1 more source

Photonic Crystal and Photonic Crystal Fibers Communications [PDF]

open access: yes, 2016
The development of all optical communications could benefit from the index guiding photonic crystal fibers. In communication the photonic crystal fibers could provide many new solutions.
Muse, H. A. (Haider)
core   +2 more sources

Regulating the Electronic Structure of Freestanding Graphene on SiC by Ge/Sn Intercalation: A Theoretical Study

open access: yesMolecules, 2022
The intrinsic n-type of epitaxial graphene on SiC substrate limits its applications in microelectronic devices, and it is thus vital to modulate and achieve p-type and charge-neutral graphene.
Xingyun Luo   +4 more
doaj   +1 more source

Pinning and Anharmonic Phonon Effect of Quasi-Free-Standing Bilayer Epitaxial Graphene on SiC

open access: yesNanomaterials, 2022
Epitaxial graphene on SiC without substrate interaction is viewed as one of the most promising two-dimensional (2D) materials in the microelectronics field.
Li Sun   +7 more
doaj   +1 more source

Phonon engineering through crystal chemistry [PDF]

open access: yes, 2011
Mitigation of the global energy crisis requires tailoring the thermal conductivity of materials. Low thermal conductivity is critical in a broad range of energy conversion technologies, including thermoelectrics and thermal barrier coatings.
Snyder, G. Jeffrey   +2 more
core   +1 more source

Crystal engineering. From molecules to crystals [PDF]

open access: yesActa Crystallographica Section A Foundations of Crystallography, 2011
How do molecules aggregate in solution, and how do these aggregates consolidate themselves in crystals? What is the relationship between the structure of a molecule and the structure of the crystal it forms? Why do some molecules adopt more than one crystal structure? Why do some crystal structures contain solvent?
openaire   +2 more sources

First-principles method for high-$Q$ photonic crystal cavity mode calculations [PDF]

open access: yes, 2012
We present a first-principles method to compute radiation properties of ultra-high quality factor photonic crystal cavities. Our Frequency-domain Approach for Radiation (FAR) can compute the far-field radiation pattern and quality factor of cavity modes $
Akahane   +29 more
core   +1 more source

Polytype control of spin qubits in silicon carbide [PDF]

open access: yes, 2013
Crystal defects can confine isolated electronic spins and are promising candidates for solid-state quantum information. Alongside research focusing on nitrogen vacancy centers in diamond, an alternative strategy seeks to identify new spin systems with an
Awschalom, David D.   +8 more
core   +2 more sources

Electro-elastic features of YBa3(PO4)3 and YbBa3(PO4)3 crystals with pure face-shear mode for acoustic wave sensor applications

open access: yesJournal of Materiomics, 2021
The fundamental shear horizontal (SH0) waves have been proved to be a very useful method for non-destructive testing due to their non-dispersive characteristics.
Guangda Wu   +6 more
doaj   +1 more source

Band gap engineering in simultaneous phononic and photonic crystal slabs [PDF]

open access: yes, 2010
We discuss the simultaneous existence of phononic and photonic band gaps in two types of phononic crystals slabs, namely periodic arrays of nanoholes in a Si membrane and of Si nanodots on a SiO2 membrane. In the former geometry, we investigate in detail
Akjouj, A.   +7 more
core   +2 more sources

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