Formation of PbSe/CdSe Core/Shell Nanocrystals for Stable Near-Infrared High Photoluminescence Emission

Autor:	Li Xinbi, Zou Bo, Cui Qingzhou, Gu Zhiyong, Zhang Yu, Dai Quanqin, Wang Yiding, Yu William
Jazyk:	angličtina
Rok vydání:	2010
Předmět:	PbSe CdSe Core–shell Near infrared Emission Nanocrystals Materials of engineering and construction. Mechanics of materials TA401-492
Zdroj:	Nanoscale Research Letters, Vol 5, Iss 8, Pp 1279-1283 (2010)
Druh dokumentu:	article
ISSN:	1931-7573 1556-276X 80433294
DOI:	10.1007/s11671-010-9637-7
Popis:	Abstract PbSe/CdSe core/shell nanocrystals with quantum yield of 70% were obtained by the “successive ion layer adsorption and reaction” technology in solution. The thickness of the CdSe shell was exactly controlled. A series of spectral red shifts with the CdSe shell growth were observed, which was attributed to the combined effect of the surface polarization and the expansion of carriers’ wavefunctions. The stability of PbSe nanocrystals was tremendously improved with CdSe shells.
Databáze:	Directory of Open Access Journals
Externí odkaz:	https://doaj.org/article/eb47acd30a804332947b7d7833b8439d Zobrazit plný text záznamu Full text from SpringerLink View record in DOAJ