Global Patent Index - EP 2252728 B1

EP 2252728 B1 20121212 - ELECTRODEPOSITION METHOD FOR THE PRODUCTION OF NANOSTRUCTURED ZNO

Title (en)

ELECTRODEPOSITION METHOD FOR THE PRODUCTION OF NANOSTRUCTURED ZNO

Title (de)

ELEKTRODEPOSITIONSVERFAHREN ZUR HERSTELLUNG VON NANOSTRUKTURIERTEM ZNO

Title (fr)

PROCÉDÉ D'ÉLECTRODÉPOSITION POUR LA PRODUCTION DE ZNO NANOSTRUCTURÉ

Publication

EP 2252728 B1 20121212 (DE)

Application

EP 09711885 A 20090220

Priority

  • DE 2009000254 W 20090220
  • DE 102008010287 A 20080221
  • DE 102008029234 A 20080619

Abstract (en)

[origin: WO2009103286A2] The problem addressed by the invention is that of improving on an electrodeposition method for the production of nanostructured ZnO in such a manner that this method enables the production of nanostructured ZnO with a high internal quantum efficiency (IQE) without additional tempering steps. According to the invention, the electrodeposition method uses an aqueous solution of a Zn salt, for example Zn(NO3)2, and a doping agent, for example HNO3 or NH4NO3. ZnO nanotubes produced in this way show an intense emission band edge in the UV range and only a weak emission in the range from 450 to 700 nm in the photoluminescence spectrum.

IPC 8 full level

C25D 9/08 (2006.01)

CPC (source: EP US)

C25D 9/08 (2013.01 - EP US); C25D 5/08 (2013.01 - EP US); C25D 5/56 (2013.01 - EP US); C25D 9/04 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

WO 2009103286 A2 20090827; WO 2009103286 A3 20091029; EP 2252728 A2 20101124; EP 2252728 B1 20121212; US 2011048956 A1 20110303

DOCDB simple family (application)

DE 2009000254 W 20090220; EP 09711885 A 20090220; US 91874709 A 20090220