Three-dimensional molecular dynamics simulations using the Tersoff potential are conducted to investigate the nanoindentation process of monocrystalline germanium (Ge). It is found that a phase transformation from fourfold-coordinated diamond cubic phase (Ge-I) to sixfold-coordinated β-tin phase (Ge-II) occurs during the nanoindentation …
What is the big deal with germanium and silicon transistors in fuzz pedals? This highly debated topic is going to be answered today. Which transistor is best?
Abstract. The present disclosure provides a new series of compounds exhibiting high fluorescence quantum yields in the solid state. In one embodiment, the compounds …
There is likely no interconversion between isomers of the tetra-atomic silicon carbide or germanium carbide/silicide species occurring in the interstellar medium. Presented in this work is a thorough determination of the transition states between the different isomers of cyclic tetra-atomic silicon carbide, germanium carbide, and germanium silicide clusters.
The present disclosure provides several new classes of luminescent compounds containing a cyclic germanium core. Specifically, the compounds are separated into four groups: (I) germoles, (II) germafluorenes, (III) germa-rhodamines or germa-fluoresceins, and (IV) germapins with the following respective formulas ...
A catalytic adsorptive cathodic stripping voltammetric method on an improved bismuth film electrode (BiFE) for the determination of trace germanium in the presence of pyrogallol has been investigated.
Cyclic oxidation behavior of NiTi SMAs improved after the addition of Ge and exhibit parabolic behavior. ... or germanium co mpounds phases which perhaps exists in the outer layer in inadeq uate ...
The present invention relates to novel cyclic compounds as therapeutic agents capable of inhibiting cell death 1 (PD1) signaling pathway and its derivatives for the treatment of diseases with enhanced immunity including the inhibition of the immunosuppressive signal induced due to PD-1, PD-L1 orPD-L2. The present invention …
U( p k), we need only show that U( pk) is cyclic. We will show that, if U(p) is cyclic, then U( p2) is cyclic; that this implies that U( pk) is cyclic for k > 2; and, finally, that U(p) is cyclic. If G is a finite group, eveiy g E G has an order, denoted Ig 1, which is the smallest positive integer mn such that g ' = e (e is the identity of the ...
This feature article is focused on the chemistry of existing isolable monatomic silicon (0) and germanium (0) complexes, highlighting their synthesis, structure, and reactivity, with a …
Reactions of 2-Germanaphthalene with Elemental Sulfur and Selenium: Synthesis of Novel Cyclic Polychalcogenides Containing a Germanium, Trichalcogenagermolanes. …
Germanium is the 32nd element in the periodic table and has a symbol of Ge and atomic number of 32. It has an atomic weight of 72.630 and a mass number of 74.
Presented in this work is a thorough determination of the transition states between the different isomers of cyclic tetra-atomic silicon carbide, germanium carbide, and germanium silicide clusters.
Abstract A study on the reactivity of N-heterocyclic carbenes (NHCs) and the cyclic (alkyl)(amino)carbene cAACMe with selected germanium(IV) and tin(IV) chlorides and organyl chlorides is presented...
CYCLIC GERMANIUM COMPOUNDS AND APPLICATIONS THEREOF. / Braddock-Wilking, Janet; Bandrowsky, Teresa Lynn; Carroll, Ii James Bryan et al. 2013. Research output: Other contribution
the cyclic stannylene 2 was the most reactive and the acyclic germylene 3 was the least reactive. All but one of the products were either mono- or diinsertion compounds, the lone exception being a distannane derived from 2.
The latter was recently proposed as a precursor for preparing germanium nanoparticles for anodes of high-capacity lithium-ion batteries.16 Physicochemical properties of novel derivatives 1â€"3 were studied by cyclic voltammetry (CV), UV spectroscopy, thermogravimetric analysis (TGA) and differential thermal analysis (DTA).
Germanium is a well-established semiconductor and has been used in various electronic devices. ... and potent analgesics, 80 only a few germanium alkoxides have been investigated for applications in the polymerization of cyclic esters. 80–82 Kricheldorf and Langanke reported the first example in the polymerization of lactones catalyzed by ...
Single-crystal germanium is a semiconductor material which shows complicated phase transformation under high pressure. In this study, new insight into the phase transformation of diamond-cubic germanium (dc-Ge) was attempted by controlled cyclic nanoindentation combined with Raman spectroscopic analysis.
Unlike cations of metals such as sodium or calcium, oxidized silicon and germanium centers generally require strongly bound covalent ligands. We report the synthesis and characterization of a germanium(II) dication in the form of the salt (Ge·...
The Ge-containing analogues of alkenes, 1,3-dienes, allenes, vinylidenes, and alkynes are described, considering most fundamentally important examples for each …
Compounds 1 and 2 are well characterized by single crystal X-ray structural analysis, cyclic voltammetry, and EPR spectroscopy. …
What is germanium (element 32), what group is it in, is it a metal nonmetal or metalloid, how many valence electrons does it have, its electron configuration, density
With a focus on germanium-containing radicals, this book chapter has been subdivided into four main parts. After introducing the topic, a summary of the efforts of generating …
Single-crystal germanium is a semiconductor material which shows complicated phase transformation under high pressure. In this study, new insight into the phase transformation of diamond-cubic germanium (dc-Ge) was attempted by controlled cyclic nanoindentation combined with Raman spectroscopic analysis.
Germanium is a chemical element with the symbol Ge and atomic number 32. It is lustrous, hard-brittle, grayish-white and similar in appearance to silicon. It is a metalloid in the carbon group that is chemically similar to its group neighbors silicon and tin. Like silicon, germanium naturally reacts and forms complexes with oxygen in nature.
These germanium heterocycles possess ideal photophysical and thermostability properties, which makes them excellent candidates for chemical or biological sensors, host materials for electroluminescent devices and solar cells, and emissive and for electron-transport layer components in organic light emitting diode devices,
Abstract: Single-crystal germanium is a semiconductor material which shows complicated phase transformation under high pressure. In this study, new insight into the phase transformation of diamond-cubic germanium (dc-Ge) was attempted by controlled cyclic nanoindentation combined with Raman spectroscopic analysis.
The sterically least-encumbered phosphines were more reactive, while the cyclic stannylene 2 was the most reactive and the acyclic germylene 3 was the least reactive. All but one of the products were either mono- or diinsertion compounds, the lone exception being a distannane derived from 2.
