EP 1547160 A1 20050629 - NANO-POROUS METAL OXIDE SEMICONDUCTOR SPECTRALLY SENSITIZED WITH METAL CHALCOGENIDE NANO-PARTICLES
Title (en)
NANO-POROUS METAL OXIDE SEMICONDUCTOR SPECTRALLY SENSITIZED WITH METAL CHALCOGENIDE NANO-PARTICLES
Title (de)
SPEKTRAL MIT METALLKALKOGENIDNANOPARTIKELN SENSIBILISIERTER NANOPORÖSER METALLOXIDHALBLEITER
Title (fr)
SEMICONDUCTEUR A OXYDE METALLIQUE NANOPOREUX SPECTRALEMENT SENSIBILISE A L'AIDE DE NANOPARTICULES DE CHALCOGENURE METALLIQUE
Publication
Application
Priority
- EP 03787809 A 20030729
- EP 0350346 W 20030729
- EP 02102130 A 20020813
Abstract (en)
[origin: WO2004017427A1] A nano-porous metal oxide semiconductor with a band-gap of greater than 2.9 eV in-situ spectrally sensitized on its internal and external surface with metal chalcogenide nano-particles with a band-gap of less than 2.9 eV containing at least one metal chalcogenide, characterized in that the nano-porous metal oxide further contains a phosphoric acid or a phosphate; and a process for in-situ spectral sensitization of nano-porous metal oxide semiconductor with a band-gap of greater than 2.9 eV on its internal and external surface with metal chalcogenide nanoparticles with a band-gap of less than 2.9 eV, containing at least one metal chalcogenide, comprising a metal chalcogenide-forming cycle comprising the steps of: contacting nano-porous metal oxide with a solution of metal ions; contacting nano-porous metal oxide with a solution of chalcogenide ions; and subsequent to metal chalcogenide formation rinsing the nano-porous metal oxide with an aqueous solution containing a phosphoric acid or a phosphate.
IPC 1-7
IPC 8 full level
H01L 31/0352 (2006.01); H01L 31/072 (2006.01)
CPC (source: EP)
H01G 9/2031 (2013.01); H01L 31/035281 (2013.01); H01M 14/005 (2013.01); Y02E 10/542 (2013.01)
Citation (search report)
See references of WO 2004017427A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
WO 2004017427 A1 20040226; AU 2003262550 A1 20040303; EP 1547160 A1 20050629; JP 2006501640 A 20060112
DOCDB simple family (application)
EP 0350346 W 20030729; AU 2003262550 A 20030729; EP 03787809 A 20030729; JP 2004528514 A 20030729