Global Patent Index - EP 2973754 A1

EP 2973754 A1 20160120 - MONOLITHIC LIGHT-EMITTING DEVICE

Title (en)

MONOLITHIC LIGHT-EMITTING DEVICE

Title (de)

MONOLITHISCHE LICHTEMITTIERENDE VORRICHTUNG

Title (fr)

DISPOSITIF MONOLITHIQUE EMETTEUR DE LUMIERE

Publication

EP 2973754 A1 20160120 (FR)

Application

EP 14709339 A 20140312

Priority

  • FR 1352303 A 20130314
  • EP 2014054873 W 20140312

Abstract (en)

[origin: WO2014140118A1] Light-emitting device comprising a monolithic matrix of III-nitride elements, said matrix comprising at least one first stack (2) of quantum wells or of planes of quantum dots able to emit photons at at least one first wavelength by electrical injection, a second stack (4) of quantum wells or of planes of quantum dots able to emit photons at at least one second wavelength by optical pumping by said photons emitted by said first stack, and a region (3) separating said two stacks, and first (8) and second (9) electrodes arranged to allow an electrical current to pass through said stacks, said second stack (4) is n-doped, said separating region (3) comprises a tunnel junction (3B) having an n++-doped region arranged on the same side as said second stack (4) and a p++-doped region (3A) arranged on the opposite side, and said first stack (2) is arranged between said separating region (3) and at least one n-doped layer (51). Process for manufacturing such device.

IPC 8 full level

H01L 33/08 (2010.01); H01L 33/00 (2010.01); H01L 33/04 (2010.01)

CPC (source: EP US)

H01L 33/0075 (2013.01 - EP US); H01L 33/06 (2013.01 - US); H01L 33/08 (2013.01 - EP US); H01L 33/325 (2013.01 - US); H01L 33/04 (2013.01 - EP US); H01L 2933/0016 (2013.01 - US); H01L 2933/0033 (2013.01 - US)

Citation (search report)

See references of WO 2014140118A1

Citation (examination)

Designated contracting state (EPC)

AL 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 RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

WO 2014140118 A1 20140918; CN 105122475 A 20151202; CN 105122475 B 20180302; EP 2973754 A1 20160120; FR 3003402 A1 20140919; FR 3003402 B1 20161104; JP 2016513878 A 20160516; US 2016043272 A1 20160211

DOCDB simple family (application)

EP 2014054873 W 20140312; CN 201480022075 A 20140312; EP 14709339 A 20140312; FR 1352303 A 20130314; JP 2015562131 A 20140312; US 201414775592 A 20140312