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

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

7 Scopus citations

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
State	Published - Nov 2009
Externally published	Yes

Bibliographical note

Funding Information:
This research was supported by Grant 3-405 from the Ministry of Science and Technology, Israel , within the cooperation program with the State Science Technology Commission, China, NASF of NSFC-CAEP of P.R. China under Grant No. 10376020 , as well as the Program for New Century Excellent Talents in University (No. NCET-04-0874 ), China. We thank A.N. Ionov and I. Lazebnik for their help in irradiating the samples with a neutron flux in a research nuclear reactor, and also thank Kai Sun and Lumin Wang for the TEM and XPS measurements and discussions of results. L.R. and I.S. are thankful to the Erick and Sheila Samson Chair of Semiconductor Technology for financial support.

Funding

This research was supported by Grant 3-405 from the Ministry of Science and Technology, Israel , within the cooperation program with the State Science Technology Commission, China, NASF of NSFC-CAEP of P.R. China under Grant No. 10376020 , as well as the Program for New Century Excellent Talents in University (No. NCET-04-0874 ), China. We thank A.N. Ionov and I. Lazebnik for their help in irradiating the samples with a neutron flux in a research nuclear reactor, and also thank Kai Sun and Lumin Wang for the TEM and XPS measurements and discussions of results. L.R. and I.S. are thankful to the Erick and Sheila Samson Chair of Semiconductor Technology for financial support.

Funders	Funder number
NASF
NSFC-CAEP	10376020
State Science Technology Commission
Program for New Century Excellent Talents in University
Ministry of science and technology, Israel

Keywords

Nanocrystals
Neutron irradiation
Neutron transmutation doping
Photoluminescence

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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",

note = "Funding Information: This research was supported by Grant 3-405 from the Ministry of Science and Technology, Israel , within the cooperation program with the State Science Technology Commission, China, NASF of NSFC-CAEP of P.R. China under Grant No. 10376020 , as well as the Program for New Century Excellent Talents in University (No. NCET-04-0874 ), China. We thank A.N. Ionov and I. Lazebnik for their help in irradiating the samples with a neutron flux in a research nuclear reactor, and also thank Kai Sun and Lumin Wang for the TEM and XPS measurements and discussions of results. L.R. and I.S. are thankful to the Erick and Sheila Samson Chair of Semiconductor Technology for financial support.",

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

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AU - Chen, Qingyun

AU - Huang, Ningkang

AU - Resnick, Lev

AU - Shlimak, Issai

AU - Sun, Kai

AU - Xu, Wen

N1 - Funding Information: This research was supported by Grant 3-405 from the Ministry of Science and Technology, Israel , within the cooperation program with the State Science Technology Commission, China, NASF of NSFC-CAEP of P.R. China under Grant No. 10376020 , as well as the Program for New Century Excellent Talents in University (No. NCET-04-0874 ), China. We thank A.N. Ionov and I. Lazebnik for their help in irradiating the samples with a neutron flux in a research nuclear reactor, and also thank Kai Sun and Lumin Wang for the TEM and XPS measurements and discussions of results. L.R. and I.S. are thankful to the Erick and Sheila Samson Chair of Semiconductor Technology for financial support.

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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.

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Neutron transmutation doping effect on the optical property of germanium nanocrystals

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