Skip to main content Accessibility help
×
Home
Hostname: page-component-5cfd469876-fsxpr Total loading time: 0.194 Render date: 2021-06-24T06:47:38.966Z Has data issue: true Feature Flags: { "shouldUseShareProductTool": true, "shouldUseHypothesis": true, "isUnsiloEnabled": true, "metricsAbstractViews": false, "figures": true, "newCiteModal": false, "newCitedByModal": true, "newEcommerce": true }

Nanocrystals of II-VI Semiconductor Materials

Published online by Cambridge University Press:  28 February 2011

Horst Weller
Affiliation:
Universität Hamburg, Institüt für Physikalische Chemie, Bundesstrasse 45, D-20146 Hamburg, Germany
Tobias Vossmeyer
Affiliation:
Hahn-Meitner-Institut, Abteilung Kleinteilchenforschung, Glienickerstrasse 100, D-14109 Berlin, Germany
Alexander Eychmüller
Affiliation:
Universität Hamburg, Institüt für Physikalische Chemie, Bundesstrasse 45, D-20146 Hamburg, Germany
Alf Mews
Affiliation:
Hahn-Meitner-Institut, Abteilung Kleinteilchenforschung, Glienickerstrasse 100, D-14109 Berlin, Germany
Lynne Katsikas
Affiliation:
Hahn-Meitner-Institut, Abteilung Kleinteilchenforschung, Glienickerstrasse 100, D-14109 Berlin, Germany
Gunter Reck
Affiliation:
Bundesanstalt für Materialpriifung, Berlin
Get access

Abstract

CdS nanoclusters ranging in diameter between 1 and 4 nm were prepared in aqueous solution using aliphatic mercaptoalcohols as ligands. The photon energies of the Is Is absorption and the respective oscillator strengths are in accordance with size quantization theory. Some clusters crystallize as macroscopic 3-D superlattices which were investigated by single crystal x-ray analysis. The neutral Cd17S4(RS)26 clusters are covalently linked in the superlattice the structure of which exhibits self similarity to the interior structure of the clusters.

Onion-shell-like composite particles from CdS and HgS were prepared by successive substitution and re-precipitation processes. Particles with a core radius of 2 nm, a shell of up to 1 nm HgS followed by a final shell of up to 1.5 nm CdS were obtained. Electrons and holes were localized in the HgS shell giving rise to excitonic fluorescence.

Type
Research Article
Copyright
Copyright © Materials Research Society 1995

Access options

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

References

1 Henglein, A., Top. Curr. Chem. 143, 113 (1988)CrossRefGoogle Scholar
2 Bras, L. E., Appl. Phys. A. 53, 465 (1991)CrossRefGoogle Scholar
3 Wang, Y., Herron, N., J. Phys. Chem. 95, 525 (1991)CrossRefGoogle Scholar
4 Weller, H., Angew. Chem. Int. Ed. Engl. 32, 41 (1993)CrossRefGoogle Scholar
5 Weller, H., Adv. Mater. 5, 88 (1993)CrossRefGoogle Scholar
6 Vossmeyer, T., Katsikas, L., Giersig, M., Popovic, I. G., Diesner, K., Chemseddine, A., Eychmüller, A., Weller, H., J. Phys. Chem. 98, 7665 (1994)CrossRefGoogle Scholar
7 Spanhel, L., Haase, M., Weller, H., Henglein, A., J. Am. Chem. Soc. 109, 5649 (1987)CrossRefGoogle Scholar
8 Kayanuma, Y., Phys. Rev. B. 38, 9797 (1988)CrossRefGoogle Scholar
9 Herron, N., Calabrese, J. C., Farneth, W. E., Wang, Y., Science 259, 1426 (1993)CrossRefGoogle Scholar
10 Lee, G. S. H., Craig, D. C., Ma, I., Scudder, M. L., Bailey, T. D., Dance, I. G., J. Am. Chem. Soc. 110, 4863 (1988)CrossRefGoogle Scholar
11 Strickler, P., Chem. Commun. 665 (1969)Google Scholar
12 Vossmeyer, T., Reck, G., Katsikas, L., Haupt, E. T. K., Schulz, B., Weller, H., submitted for publicationGoogle Scholar
13 Mews, A., Eychmüller, A., Giersig, M., Schooss, D., Weller, H., J. Phys. Chem. 98, 934 (1994)CrossRefGoogle Scholar
14 Schooss, D., Mews, A., Eychmuller, A., Weller, H., Phys. Rev. B 49, 17072 (1994)CrossRefGoogle Scholar

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.

Nanocrystals of II-VI Semiconductor Materials
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.

Nanocrystals of II-VI Semiconductor Materials
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.

Nanocrystals of II-VI Semiconductor Materials
Available formats
×
×

Reply to: Submit a response

Please enter your response.

Your details

Please enter a valid email address.

Conflicting interests

Do you have any conflicting interests? *