Sign on
ADS Classic is now deprecated. It will be completely retired in October 2019. Please redirect your searches to the new ADS modern form or the classic form. More info can be found on our blog.

SAO/NASA ADS Physics Abstract Service

· Find Similar Abstracts (with default settings below)
· Electronic Refereed Journal Article (HTML)
· arXiv e-print (arXiv:1409.4832)
· References in the article
· Citations to the Article (11) (Citation History)
· Refereed Citations to the Article
· Also-Read Articles (Reads History)
· Translate This Page
Microscopic Theory of Cation Exchange in CdSe Nanocrystals
Ott, Florian D.; Spiegel, Leo L.; Norris, David J.; Erwin, Steven C.
AA(Optical Materials Engineering Laboratory, ETH Zurich, 8092 Zurich, Switzerland), AB(Optical Materials Engineering Laboratory, ETH Zurich, 8092 Zurich, Switzerland), AC(Optical Materials Engineering Laboratory, ETH Zurich, 8092 Zurich, Switzerland), AD(Center for Computational Materials Science, Naval Research Laboratory, Washington, D.C. 20375, USA)
Physical Review Letters, Volume 113, Issue 15, id.156803 (PhRvL Homepage)
Publication Date:
PACS Keywords:
Electronic structure of nanoscale materials: clusters nanoparticles nanotubes and nanocrystals, Defects and impurities in crystals, microstructure, Quantum dots
Abstract Copyright:
(c) 2014: American Physical Society
Bibliographic Code:


Although poorly understood, cation-exchange reactions are increasingly used to dope or transform colloidal semiconductor nanocrystals (quantum dots). We use density-functional theory and kinetic Monte Carlo simulations to develop a microscopic theory that explains structural, optical, and electronic changes observed experimentally in Ag-cation-exchanged CdSe nanocrystals. We find that Coulomb interactions, both between ionized impurities and with the polarized nanocrystal surface, play a key role in cation exchange. Our theory also resolves several experimental puzzles related to photoluminescence and electrical behavior in CdSe nanocrystals doped with Ag.
Bibtex entry for this abstract   Preferred format for this abstract (see Preferences)

Find Similar Abstracts:

Use: Authors
Keywords (in text query field)
Abstract Text
Return: Query Results Return    items starting with number
Query Form
Database: Astronomy
arXiv e-prints