Skip to main content Accessibility help
×
Home

On the Origin of Visible Luminescence from SIO2 Films Containing Ge Nanocrystals

Published online by Cambridge University Press:  15 February 2011

K. S. Min
Affiliation:
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125.
K. V. Shcheglov
Affiliation:
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125.
C. M. Yang
Affiliation:
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125.
R. P. Camata
Affiliation:
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125.
Harry A. Atwater
Affiliation:
Thomas J. Watson Laboratory of Applied Physics, California Institute of Technology, Pasadena, CA 91125.
M. L. Brongersma
Affiliation:
FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands.
A. Polman
Affiliation:
FOM Institute for Atomic and Molecular Physics, Kruislaan 407, 1098 SJ Amsterdam, The Netherlands.
Get access

Abstract

Synthesis of Ge nanocrystals in SiO2 is carried out by precipitation from a supersaturated solid solution of Ge in SiO2 made by Ge ion implantation. The SiO2films containing Ge nanocrystals show intense visible photoluminescence at room temperature that is very similar in spectral features to that of SiO2 containing Ge nanocrystals synthesized by other methods, such as co-sputtering and hydrothermal reduction. The dependence of the measured peak luminescence energy on the nanocrystal diameter shows a poor correlation compared to the calculated sizedependent exciton energy for Ge ‘quantum dot’ states. The measured luminescence lifetimes are much shorter than those predicted by calculated radiative decay rates for the observed size range. The photoluminescence spectra show only a weak temperature dependence. In addition, very similar photoluminescence spectra have also been observed from Xe+-implanted SiO2with damage profiles similar to Ge+-implanted SiO2. Furthermore, the luminescence has been shown to be reversibly quenched by deuterium. These results indicate that the process responsible for visible photoluminescence is not the radiative recombination of excitons in Ge ‘quantum dots’ but is instead related to luminescent radiative defect centers in the matrix or at the nanocrystal/matrix interface.

Type
Research Article
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below.

References

1. Canham, L. T., Appl. Phys. Lett. 57, 1046 (1993).CrossRefGoogle Scholar
2. Maeda, Y., Tsukamoto, N., Yazawa, Y., Kanemitsu, Y., and Matsumoto, Y., Appl. Phys. Lett. 59, 3168 (1991).CrossRefGoogle Scholar
3. Kanemitsu, Y., Uto, H., Matsumoto, Y., and Maeda, Y., Appl. Phys. Lett. 61, 2187 (1992).CrossRefGoogle Scholar
4. Maeda, Y., Phys. Rev. B 51, 1658 (1994).CrossRefGoogle Scholar
5. Hayashi, S., Kanzawa, Y., Kataoka, M., Nagareda, T., and Yamoto, K., Z. Phys. D 26, 144 (1993).CrossRefGoogle Scholar
6. Paine, D. C., Caragianis, C., Kim, T. Y., Shigesato, Y., and Ishahara, T., Appl. Phys. Lett. 62, 2842 (1993).CrossRefGoogle Scholar
7. Atwater, H. A., Shcheglov, K. V., Wong, S. S., Vahala, K. J., Flagan, R. C., Brongersma, M. L., and Polman, A., Mat. Res. Soc. Symp. Proc. 316, 409 (1994).CrossRefGoogle Scholar
8. Yang, C. M., Shcheglov, K. V., Brongersma, M. L., Polman, A., and Atwater, H. A., Mat. Res. Soc. Symp. Proc. Vol.358, 181 (1995).CrossRefGoogle Scholar
9. Takagahara, T. and Takeda, K., Phys. Rev. B 46, 15578 (1992).CrossRefGoogle Scholar
10. Awazu, K., Muta, K., and Kawazoe, H., J. Appl. Phys. 74, 2237 (1993); L. Skuja, J. Non-Cryst. Solids 179, 51 (1994).CrossRefGoogle Scholar
11. Ziegler, J. F., Biersack, J. P., and Littmark, U., The Stopping and Range of Ions in Solids, Pergamon, New York, 1985.Google Scholar
12. Pankove, J. I. and Tarng, M. L., Appl. Phys. Lett. 34, 156 (1979).CrossRefGoogle Scholar
13. Griscom, D. L., J. Appl. Phys. 58, 2524 (1985).CrossRefGoogle Scholar

Full text views

Full text views reflects PDF downloads, PDFs sent to Google Drive, Dropbox and Kindle and HTML full text views.

Total number of HTML views: 0
Total number of PDF views: 2 *
View data table for this chart

* Views captured on Cambridge Core between September 2016 - 18th January 2021. This data will be updated every 24 hours.

Hostname: page-component-77fc7d77f9-vchrx Total loading time: 0.782 Render date: 2021-01-18T08:34:30.649Z Query parameters: { "hasAccess": "0", "openAccess": "0", "isLogged": "0", "lang": "en" } Feature Flags last update: Mon Jan 18 2021 07:55:30 GMT+0000 (Coordinated Universal Time) Feature Flags: { "metrics": true, "metricsAbstractViews": false, "peerReview": true, "crossMark": true, "comments": true, "relatedCommentaries": true, "subject": true, "clr": true, "languageSwitch": true, "figures": false, "newCiteModal": false, "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true }

Send article to Kindle

To send this article to your Kindle, first ensure no-reply@cambridge.org is added to your Approved Personal Document E-mail List under your Personal Document Settings on the Manage Your Content and Devices page of your Amazon account. Then enter the ‘name’ part of your Kindle email address below. Find out more about sending to your Kindle. Find out more about sending to your Kindle.

Note you can select to send to either the @free.kindle.com or @kindle.com variations. ‘@free.kindle.com’ emails are free but can only be sent to your device when it is connected to wi-fi. ‘@kindle.com’ emails can be delivered even when you are not connected to wi-fi, but note that service fees apply.

Find out more about the Kindle Personal Document Service.

On the Origin of Visible Luminescence from SIO2 Films Containing Ge Nanocrystals
Available formats
×

Send article to Dropbox

To send this article to your Dropbox account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Dropbox.

On the Origin of Visible Luminescence from SIO2 Films Containing Ge Nanocrystals
Available formats
×

Send article to Google Drive

To send this article to your Google Drive account, please select one or more formats and confirm that you agree to abide by our usage policies. If this is the first time you use this feature, you will be asked to authorise Cambridge Core to connect with your <service> account. Find out more about sending content to Google Drive.

On the Origin of Visible Luminescence from SIO2 Films Containing Ge Nanocrystals
Available formats
×
×

Reply to: Submit a response


Your details


Conflicting interests

Do you have any conflicting interests? *