Title:
高発光の色-選択材料
Document Type and Number:
Japanese Patent JP4474047
Kind Code:
B2
Abstract:
A coated nanocrystal capable of light emission includes a substantially monodisperse nanoparticle selected from the group consisting of CdX, where X = S, Se, Te, and an overcoating of ZnY, where Y = S, Se, uniformally deposited thereon, said coated nanoparticle charaterized in that when irradiated the particles exhibit photoluminescence in a narrow spectral range of no greater than about 60 nm, and most preferably 40 nm at full width half max (FWHM). The particle size of the nanocrystallite core is in the range of about 2 nm (20Å) to about 12.5 nm (125Å), with a deviation of less than 10% in the core. The coated nanocrystal exhibits photoluminescence having quantum yields of greater than 30%.
Inventors:
Bowendy, Moungi
Jensen, Clubs, F.
Doboushi, Basile, Oh.
Rodriguez-Viero, Oia
Mikulek, Frederick, Victor
Jensen, Clubs, F.
Doboushi, Basile, Oh.
Rodriguez-Viero, Oia
Mikulek, Frederick, Victor
Application Number:
JP2000521557A
Publication Date:
June 02, 2010
Filing Date:
November 10, 1998
Export Citation:
Assignee:
MASSACHUSETTS INSTITUTE OF TECHNOLOGY
International Classes:
C09K11/08; C09K11/00; C09K11/56; C09K11/88; H01S3/16
Other References:
MIKULEC F.V.,SYNTHESIS AND CHARACTERICATIONS OF HIGHLY LUMINESCENT(CDSE)ZNS QUANTUM DOTS,ADVANCES IN MICROCRYSTALLINE AND NONOCRYSTALLINE SEMICONDUCTORS,SYMPOSIUM,米国,MATER.RES.SOC.,1996年12月 2日,P359-364
KINO M.,THE BAND EDGE LUMINESCENCE OF SURFACE MODIFIED CDSE NANOCRYSTALLITES: PROBING THE LUMINESCENCE STATE,JOURNAL OF CHEMICAL PHYSICS,1997年 6月15日,V106N23,P9869-9882
KORTAN A.R.,NUCLEATION AND GROWTH OF CDSE ON ZNS QUANTUM CRYSTALLITE SEEDS, 以下備考,JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,1990年12月31日,V112 1990年発行,P1327-1332,AND VICE VERSA, IN INVERSE MICELLE MEDIA 前記、「検索日」は、検索用の暫定値です。
HINES M.A.,SYNTHESIS AND CHARACTERIZATION OF STRONGLY LUMINESCING ZNS-CAPPED CDSE NANOCRYSTALS,J.PHYS.CHEM.,1996年12月31日,V100 1996年発行,P468-471,前記、「検索日」は、検索用の暫定値です。
DANEK M.,SYNTHESIS OF THE LUMINESCENT THIN-FILM CdSe/ZnSe QUANTUM DOT COMPOSITES USING CdSe QUANTUM DOTS PASSIVATED WITH AN OVERLAYER OF ZnSe,CHEM.MATER.,1996年,V8,P173-180
KINO M.,THE BAND EDGE LUMINESCENCE OF SURFACE MODIFIED CDSE NANOCRYSTALLITES: PROBING THE LUMINESCENCE STATE,JOURNAL OF CHEMICAL PHYSICS,1997年 6月15日,V106N23,P9869-9882
KORTAN A.R.,NUCLEATION AND GROWTH OF CDSE ON ZNS QUANTUM CRYSTALLITE SEEDS, 以下備考,JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,1990年12月31日,V112 1990年発行,P1327-1332,AND VICE VERSA, IN INVERSE MICELLE MEDIA 前記、「検索日」は、検索用の暫定値です。
HINES M.A.,SYNTHESIS AND CHARACTERIZATION OF STRONGLY LUMINESCING ZNS-CAPPED CDSE NANOCRYSTALS,J.PHYS.CHEM.,1996年12月31日,V100 1996年発行,P468-471,前記、「検索日」は、検索用の暫定値です。
DANEK M.,SYNTHESIS OF THE LUMINESCENT THIN-FILM CdSe/ZnSe QUANTUM DOT COMPOSITES USING CdSe QUANTUM DOTS PASSIVATED WITH AN OVERLAYER OF ZnSe,CHEM.MATER.,1996年,V8,P173-180
Attorney, Agent or Firm:
Hatta International Patent Corporation