Neutron transmutation doping effect on the optical property of germanium nanocrystals

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

doi:10.1016/j.scriptamat.2009.08.006

Neutron transmutation doping effect on the optical property of germanium nanocrystals

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

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

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.

Original language	English
Pages (from-to)	970-973
Number of pages	4
Journal	Scripta Materialia
Volume	61
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2009.08.006
Publication status	Published - Nov 2009

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10.1016/j.scriptamat.2009.08.006

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title = "Neutron transmutation doping effect on the optical property of germanium nanocrystals",

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.",

keywords = "Nanocrystals, Neutron irradiation, Neutron transmutation doping, Photoluminescence",

author = "Youwen Hu and Tiecheng Lu and Shaobo Dun and Qiang Hu and Caofeng You and Qingyun Chen and Ningkang Huang and Lev Resnick and Issai Shlimak and Kai Sun and Wen Xu",

year = "2009",

month = nov,

doi = "10.1016/j.scriptamat.2009.08.006",

language = "English",

volume = "61",

pages = "970--973",

journal = "Scripta Materialia",

issn = "1359-6462",

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T1 - Neutron transmutation doping effect on the optical property of germanium nanocrystals

AU - Hu, Youwen

AU - Lu, Tiecheng

AU - Dun, Shaobo

AU - Hu, Qiang

AU - You, Caofeng

AU - Chen, Qingyun

AU - Huang, Ningkang

AU - Resnick, Lev

AU - Shlimak, Issai

AU - Sun, Kai

AU - Xu, Wen

PY - 2009/11

Y1 - 2009/11

N2 - 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.

AB - 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.

KW - Nanocrystals

KW - Neutron irradiation

KW - Neutron transmutation doping

KW - Photoluminescence

UR - http://www.scopus.com/inward/record.url?scp=69949083577&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2009.08.006

DO - 10.1016/j.scriptamat.2009.08.006

M3 - Article

SN - 1359-6462

VL - 61

SP - 970

EP - 973

JO - Scripta Materialia

JF - Scripta Materialia

IS - 10

ER -

Neutron transmutation doping effect on the optical property of germanium nanocrystals

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