Oceanic distribution of inorganic germanium relative to silicon: Germanium discrimination by diatoms
نویسندگان
چکیده
منابع مشابه
Germanium epitaxy on silicon
With the rapid development of on-chip optical interconnects and optical computing in the past decade, silicon-based integrated devices for monolithic and hybrid optoelectronic integration have attracted wide attention. Due to its narrow pseudo-direct gap behavior and compatibility with Si technology, epitaxial Ge-on-Si has become a significant material for optoelectronic device applications. In...
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The wavelength range that extends from 1550 to 5000 nm is a new regime of operation for Si-based photonic and opto-electronic integrated circuits. To actualize the new chips, heterostructure active devices employing the ternary SiGeSn alloy are proposed in this paper. Foundry-based monolithic integration is described. Opportunities and challenges abound in creating laser diodes, optical amplifi...
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To meet the unprecedented demands for data transmission speed and bandwidth silicon integrated photonics that can generate, modulate, process and detect light signals is being developed. Integrated silicon photonics that can be built using existing CMOS fabrication facilities offers the tantalizing prospect of a scalable and cost-efficient solution to replace electrical interconnects. Silicon, ...
متن کاملEpidemiological survey of workers exposed to inorganic germanium compounds.
OBJECTIVES To assess occupational exposure to inorganic germanium (Ge) in workers from a producing plant, and to assess the health of these workers, with a special focus on respiratory, kidney, and liver functions. METHODS Cross sectional study of 75 workers exposed to Ge and 79 matched referents. Exposure was characterised by measuring air and urine concentrations of the element during a typ...
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Microcrystalline silicon germanium films showing excellent opto-electronic properties have been prepared at a substrate temperature of 1951C by radio frequency plasma enhanced chemical vapor deposition at 13.56MHz. A white light (AM 1.5) photoconductivity of 5 10 /O cm and ambipolar diffusion length of 114 nm (from SSPG) established the device quality. Films are intrinsic (Fermi level near midg...
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ژورنال
عنوان ژورنال: Global Biogeochemical Cycles
سال: 2010
ISSN: 0886-6236
DOI: 10.1029/2009gb003689