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Photon-induced conduction modulation in SiO2 thin films embedded with Ge nanocrystals

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Photon-induced conduction modulation in SiO2 thin films embedded with Ge nanocrystals

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Title: Photon-induced conduction modulation in SiO2 thin films embedded with Ge nanocrystals
Author: Ding, Liang; Chen, Tupei; Yang, Ming; Wong, Jen It; Liu, Yang; Yu, Siu Fung; Zhu, Fu Rong; Tan, M. C.; Fung, Stevenson Hon Yuen; Tung, Chih Hang; Trigg, Alastair David
Copyright year: 2007
Abstract: The authors report the photon-induced conduction modulation in SiO2 thin films embedded with germanium nanocrystals (nc-Ge). The conduction of the oxide could be switched to a higher- or lower-conductance state by a ultraviolet (UV) illumination. The conduction modulation is caused by charging and discharging in the nc-Ge due to the UV illumination. If the charging process is dominant, the oxide conductance is reduced; however, if the discharging process is dominant, the oxide conductance is increased. As the conduction can be modulated by UV illumination, it could have potential applications in silicon-based optical memory devices.
Subject: DRNTU::Engineering::Electrical and electronic engineering::Nanoelectronics.
Type: Journal Article
Series/ Journal Title: Applied physics letters
School: School of Electrical and Electronic Engineering
Related Organization: Institute of Materials Research and EngineeringInstitute of Microelectronics
Rights: Applied Physics Letters © copyright 2007 American Institute of Physics. The journal's website is located at http://apl.aip.org/applab/v90/i10/p103102_s1?isAuthorized=no
Version: Published version

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