Organic-capped ZnO nanocrystals: Synthesis and n-type character

Authors
Shim, M Guyot-Sionnest, P
Citation
M. Shim et P. Guyot-sionnest, Organic-capped ZnO nanocrystals: Synthesis and n-type character, J AM CHEM S, 123(47), 2001, pp. 11651-11654
Citations number
28
Categorie Soggetti
Chemistry & Analysis",Chemistry
Journal title
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
ISSN journal
00027863 → ACNP
Volume
123
Issue
47
Year of publication
2001
Pages
11651 - 11654
Database
ISI
SICI code
0002-7863(20011128)123:47<11651:OZNSAN>2.0.ZU;2-5
Abstract
Wurtzite ZnO nanocrystals capped with trioctylphosphine oxide or alkylamine s are synthesized and characterized. These ZnO nanocrystals can be made n-t ype either by electron transfer doping from reducing species in solution or by above band gap photoexcitation with a UV lamp. The n-type nanocrystals exhibit a strong intraband infrared absorption, an extensive bleach of the interband band-edge absorption, and a complete quenching of the photolumine scence.