Germanium Substrate
Germanium Substrate - Related Videos
09:45
Epitaxial Growth of Perovskite Strontium Titanate on Germanium via Atomic Layer Deposition
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Cited by 3 •
2016
This work details the procedures for the growth and characterization of crystalline SrTiO3 directly on germanium substrates by atomic layer deposition. The procedure illustrates the ability of an all-chemical growth method to integrate oxides monolithically onto semiconductors for metal-oxide semiconductor devices.
12:38
Soft Lithographic Functionalization and Patterning Oxide-free Silicon and Germanium
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Cited by 3 •
2011
Here we describe a simple method for patterning oxide-free silicon and germanium with reactive organic monolayers and demonstrate functionalization of the patterned substrates with small molecules and proteins. The approach completely protects surfaces from chemical oxidation, provides precise control over feature morphology, and provides ready access to chemically discriminated patterns.
08:15
Synthesis of Nine-atom Deltahedral Zintl Ions of Germanium and their Functionalization with Organic Groups
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Cited by 1 •
2012
We present the high-temperature synthesis of intermetallic precursors K4Ge9, their dissolution in ethylenediamine to form Ge94- deltahedral Zintl ions, and the reaction of the clusters with alkynes to form organo-Zintl ions. The latter are characterized by electrospray mass spectrometry in solutions and by single-crystal X-ray diffraction in the solid state.
11:13
Identification of Kinase-substrate Pairs Using High Throughput Screening
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Cited by 1 •
2015
Protein phosphorylation is a central feature of how cells interpret and respond to information in their extracellular milieu. Here, we present a high throughput screening protocol using kinases purified from mammalian cells to rapidly identify kinases that phosphorylate a substrate(s) of interest.
04:25
Substrate Oxidation Assay in Cultured Cells: An In Vitro Assay to Quantify Substrate Oxidation in Cells by Measuring Radioactive Signals from Trapped CO2
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2025
This video demonstrates a quantification technique for CO2 released during substrate oxidation using 14C-radiolabeled substrates. The released 14CO2 is trapped in an alkaline solution and quantified by a scintillation counter. The oxidation of different substrates varies between tissues and reflects the pathophysiological condition of the tissue.
FAQs
The ordered germanium lattice provides a structural template for incoming material, while surface chemistry governs how that material initially interacts with the wafer. These factors influence nucleation, the formation of the earliest stable material regions, as well as epitaxial growth, in which the deposited layer follows the substrate’s crystal arrangement. Controlling both helps researchers obtain a more coherent interface and manage defect formation.
Compatible crystal spacing gives researchers a basis for examining compound-semiconductor layers in relation to the germanium lattice. The degree of structural compatibility is relevant to strain and defect formation, which can influence interfacial quality. Connecting lattice spacing with composition and these interface properties helps explain later differences in charge transport and device performance.
Cleaning, thermal treatment, and deposition conditions act as linked controls rather than isolated preparation details. Cleaning establishes the starting surface, thermal treatment changes the surface condition before growth, and deposition conditions govern how the new material forms. Together, these variables affect adhesion, nucleation, epitaxy, and defect formation, so researchers interpret film quality in relation to the complete preparation sequence.
An investigation typically begins with a polished crystalline wafer, followed by surface cleaning and, where required, thermal treatment before controlled deposition or analysis. Researchers then examine the resulting interface or thin film in terms of growth quality, adhesion, composition, strain, or charge transport. Keeping these stages controlled helps connect processing conditions with the observed material and device outcomes.
Germanium substrates support work across electronic and photonic devices, infrared components, and compound-semiconductor structures. In these applications, the wafer is not merely a mechanical support: its lattice and surface chemistry can influence the overlying layer and therefore the interface through which relevant electrical or optical behavior is developed. This makes the substrate useful for linking materials processing to device performance.
Chemistry studies of these interfaces can track how processing changes composition, strain, charge transport, and overall device performance. The resulting information helps distinguish whether an outcome reflects the deposited material itself, its interaction with germanium, or defects introduced during growth. This interface-focused view is valuable when optimizing thin films and compound-semiconductor structures for electronic, photonic, or infrared applications.