Structure and Stability of a Trefoil Leaf Motif of Metal-Doped Silicon and Germanium Clusters: M3@E20 with E = Si and Ge and M = Fe, Ru, and Os

2020 ◽  
Vol 124 (41) ◽  
pp. 8488-8495
Author(s):  
Hung Tan Pham ◽  
Minh Tho Nguyen
Keyword(s):  
Structure And Stability ◽  
Doped Silicon ◽  
Silicon And Germanium ◽  
Metal Doped ◽  
Germanium Clusters

Application Conditions of Effective Medium Theory in Near-Field Radiative Heat Transfer Between Multilayered Metamaterials

2014 ◽  
Vol 136 (9) ◽  
Author(s):  
X. L. Liu ◽  
T. J. Bright ◽  
Z. M. Zhang
Keyword(s):  
Heat Transfer ◽  
Radiative Heat Transfer ◽  
Radiative Heat ◽  
Effective Medium Theory ◽  
Near Field ◽  
Effective Medium ◽  
Medium Theory ◽  
Metal Metal ◽  
Doped Silicon ◽  
Silicon And Germanium

This work addresses the validity of the local effective medium theory (EMT) in predicting the near-field radiative heat transfer between multilayered metamaterials, separated by a vacuum gap. Doped silicon and germanium are used to form the metallodielectric superlattice. Different configurations are considered by setting the layers adjacent to the vacuum spacer as metal–metal (MM), metal–dielectric (MD), or dielectric–dielectric (DD) (where M refers to metallic doped silicon and D refers to dielectric germanium). The calculation is based on fluctuational electrodynamics using the Green's function formulation. The cutoff wave vectors for surface plasmon polaritons (SPPs) and hyperbolic modes are evaluated. Combining the Bloch theory with the cutoff wave vector, the application condition of EMT in predicting near-field radiative heat transfer is presented quantitatively and is verified by exact calculations based on the multilayer formulation.

A DFT investigation on group 8B transition metal-doped silicon carbide nanotubes for hydrogen storage application

2018 ◽  
Vol 439 ◽  
pp. 494-505 ◽  
Author(s):  
Chanukorn Tabtimsai ◽  
Vithaya Ruangpornvisuti ◽  
Sarawut Tontapha ◽  
Banchob Wanno
Keyword(s):  
Silicon Carbide ◽  
Transition Metal ◽  
Hydrogen Storage ◽  
Silicon Carbide Nanotubes ◽  
Doped Silicon ◽  
Metal Doped

Design guidelines for transition metals as interstitial emitters in silicon nanocrystals to tune photoluminescence properties: zinc as biocompatible example

Nanoscale ◽  
2020 ◽  
Vol 12 (37) ◽  
pp. 19340-19349
Author(s):  
Dirk König ◽  
Richard D. Tilley ◽  
Sean C. Smith
Keyword(s):  
Medical Imaging ◽  
Transition Metal ◽  
Transition Metals ◽  
Silicon Nanocrystals ◽  
Design Guidelines ◽  
Photoluminescence Properties ◽  
Design Rules ◽  
Doped Silicon ◽  
Metal Doped ◽  
Microwave Excitation

General photoluminescence design rules for interstitial transition-metal-doped silicon nanocrystals are derived; Zn shows excellent properties for medical imaging and plasmonic microwave excitation to exactly eliminate marked cells.

Analysis of hyperfine structure in chalcogen-doped silicon and germanium nanowires

2015 ◽  
Vol 91 (12) ◽  
Author(s):  
Guido Petretto ◽  
Andrea Massé ◽  
Marco Fanciulli ◽  
Alberto Debernardi
Keyword(s):  
Hyperfine Structure ◽  
Germanium Nanowires ◽  
Doped Silicon ◽  
Silicon And Germanium
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