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Neutron transmutation doping effect on the optical property of germanium nanocrystals

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Date

2009

Authors

Hu, Youwen
Lu, Tiecheng
Dun, Shaobo
Hu, Qiang
You, Caofeng
Chen, Qingyun
Huang, Ningkang
Resnick, Lev
Shlimak, Issai
Sun, Kai

Journal Title

Journal ISSN

Volume Title

Publisher

Pergamon-Elsevier Ltd

Abstract

Arsenic-doped isotopic 74Ge nanocrystals (nc-74Ge) embedded in amorphous SiO2 films were prepared by neutron transmutation doping (NTD) and the influence of the As additive on the optical properties of the samples was investigated. The optical results showed that the original nc-74Ge photoluminescence (PL) (∼620 nm) blue-shift and PL quenching could be seen by the appearance of Auger-like recombination channels, while the increase in PL was produced by neutron irradiation and a second annealing, not by the As impurities.

Description

Keywords

Keywords: Blue shift; Ge nanocrystals; Germanium nanocrystals; Neutron transmutation doping; Recombination channels; Arsenic; Germanium; Nanocrystals; Neutrons; Optical properties; Photoluminescence; Quenching; Semiconductor doping; Silicon compounds; Neutron irrad Nanocrystals; Neutron irradiation; Neutron transmutation doping; Photoluminescence

Citation

URI

http://hdl.handle.net/1885/53420

Collections

ANU Research Publications

Source

Scripta Materialia

Type

Journal article

Book Title

Entity type

Access Statement

License Rights

DOI

10.1016/j.scriptamat.2009.08.006

Restricted until

2037-12-31

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