Colloidally prepared HgTe nanocrystals with strong room-temperature infrared luminescence

Citation
A. Rogach et al., Colloidally prepared HgTe nanocrystals with strong room-temperature infrared luminescence, ADVAN MATER, 11(7), 1999, pp. 552
Citations number
28
Categorie Soggetti
Multidisciplinary,"Material Science & Engineering
Journal title
ADVANCED MATERIALS
ISSN journal
09359648 → ACNP
Volume
11
Issue
7
Year of publication
1999
Database
ISI
SICI code
0935-9648(19990507)11:7<552:CPHNWS>2.0.ZU;2-Q
Abstract
Room-temperature infrared luminescence with high quantum yield (48%) has be en observed from HgTe nanocrystals. The colloidal preparation, reported for the first time, gave rise to nanocrystals of size 3 to 6 nm with coloradoi te structure. The thiol-capped quantum dots. precipitated as a white powder from the colloidal solution with 2-propanol, and readily redissolved in wa ter, are stable towards oxidation and display luminescence covering the 1.3 mu m telecommunications fiber window.