0000000000555465

AUTHOR

D Millers

showing 2 related works from this author

Photoconductivity of Germanium Nanowire Arrays Incorporated in Anodic Aluminum Oxide

2007

Photoconductivity of germanium nanowire arrays of 50 and 100 nm diameter incorporated into Anodic Aluminum Oxide (AAO) membranes illuminated with visible light is investigated. Photocurrent response to excitation radiation with time constants faster than 10−4 s were governed by absorption of incident light by nanowires, while photokinetics with time constants of the order of 10−3 s originates from the photoluminescence of the AAO matrix. Possible applications of nanowire arrays inside AAO as photoresistors are discussed.

PhotocurrentHistoryMaterials sciencePhotoluminescencebusiness.industryPhotoconductivityPhotoresistorNanowirechemistry.chemical_elementGermaniumComputer Science ApplicationsEducationlaw.inventionchemistrylawOptoelectronicsAbsorption (electromagnetic radiation)businessVisible spectrumJournal of Physics: Conference Series
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TSL and fractional glow study of Ge-doped α-quartz

2013

Crystalline α-quartz doped with 0.1wt% and 0.9wt% germanium was studied using TSL and FGT equipment. Sample was chosen because previously it is known that Ge in quartz is efficient trap for electrons, therefore it could be used for detection of hypothetic self-trapped hole in α-quartz. However previous investigations of ODMR and TSL shows that in α-quartz the hole is still mobile and trapping occurs only on defect states. The activation energies for both TSL peaks are found by fractional glow and Hoogenstraaten method. The TSL distribution changes depending on Ge concentration and also on irradiation type. The TSL peaks below 70K in quartz doped with Ge could belong to hole trapped on Ge.

Materials sciencechemistryDopingAnalytical chemistrychemistry.chemical_elementGermaniumTrappingElectronIrradiationQuartzIOP Conference Series: Materials Science and Engineering
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