Fluorine passivation of ODC defects in amorphous germanium dioxide
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2020.120388
Abstract: Abstract We present first-principle calculations on the interaction of atomic and molecular fluorine with germanium oxygen-deficient center (GODC) in amorphous germanium dioxide (a-GeO2). The interaction of atomic fluorine with GODC in a-GeO2 results in the… read more here.
Keywords: germanium dioxide; germanium; amorphous germanium; molecular fluorine ... See more keywords
In-situ Measurement of Self-Atom Diffusion in Solids Using Amorphous Germanium as a Model System
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-35915-1
Abstract: We present in-situ self-diffusion experiments in solids, which were carried out by Focussing Neutron Reflectometry on isotope multilayers. This new approach offers the following advantages in comparison to classical ex-situ measurements: (1) Identification and continuous… read more here.
Keywords: situ measurement; diffusion; germanium; amorphous germanium ... See more keywords
Investigation of amorphous germanium contact properties with planar detectors made from USD-grown germanium crystals
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Instrumentation"
DOI: 10.1088/1748-0221/13/12/p12026
Abstract: The characterization of detectors fabricated from home-grown crystals is the most direct way to study crystal properties. We fabricated planar detectors from high-purity germanium (HPGe) crystals grown at the University of South Dakota (USD). In… read more here.
Keywords: usd grown; planar detectors; germanium; investigation amorphous ... See more keywords
Visualization of tetrahedral disordering in amorphous germanium through local atomic motifs
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Applied Crystallography"
DOI: 10.1107/s1600576718012967
Abstract: The atomic arrangements in amorphous solids, unlike those in crystalline materials, remain elusive. The details of atom ordering are under debate even in simplistic random network models. This work presents further advancements in the local… read more here.
Keywords: germanium; amorphous germanium; model; tetrahedral disordering ... See more keywords
Room-temperature long-wave infrared detector with thin double layers of amorphous germanium and amorphous silicon.
Sign Up to like & getrecommendations! Published in 2019 at "Optics express"
DOI: 10.1364/oe.27.037056
Abstract: A longwave-infrared photodetector made of double layers of 100nm amorphous germanium (a-Ge) and 25nm amorphous silicon (a-Si) have been demonstrated. Under room temperature, the device shows the responsivity of 1.7 A/W, detectivity of 6×108 Jones,… read more here.
Keywords: amorphous germanium; amorphous silicon; double layers; room temperature ... See more keywords