公开(公告)号：JP2003115643A

公开(公告)日：2003-04-18

申请号：JP2002222096

申请日：2002-07-30

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHO ALFRED YI ,  GMACHL CLAIRE F ,  NG HOCK MIN

IPC: H01L29/06 ,  H01S5/04 ,  H01S5/10 ,  H01S5/12 ,  H01S5/30 ,  H01S5/323 ,  H01S5/34 ,  H01S5/343

Abstract: PROBLEM TO BE SOLVED: To provide a method for removing uncertainty between relative values of energy levels even when an intrinsic internal electric fields can be present to generate an optical device based on a coupled quantum well. SOLUTION: The quantum well layer structure comprises a plurality of quantum well layers coupled by barrier layers. In this structure, at least one of a piezoelectric field and a pyroelectric field is formed, and the quantum well structure is doped with a Fermi-energy level filled between the base state and the excited state of the coupled quantum well layer.

公开(公告)号：DE602004006043D1

公开(公告)日：2007-06-06

申请号：DE602004006043

申请日：2004-02-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHOWDHURY AREF ,  NG HOCK MIN ,  SLUSHER RICHARD ELLIOTT

IPC: H01L21/205 ,  H01L21/306 ,  B81B1/00 ,  C23F1/40 ,  G02B6/12 ,  G02B6/122 ,  H01J1/30 ,  H01J1/304 ,  H01J9/02 ,  H01L21/20

Abstract: An apparatus, comprising: a layer of group III-nitride having a top surface, the top surface having a plurality of pyramidal structures of the group III-nitride; a metallic electrode located directly on a flat surface of the layer between portions of the layer having the pyramidal structures, the pyramidal structures of the top surface being physically separated from the electrode; and a phosphor screen facing the top surface.

公开(公告)号：DE602004006043T2

公开(公告)日：2007-12-27

申请号：DE602004006043

申请日：2004-02-24

Applicant: LUCENT TECHNOLOGIES INC

Inventor： CHOWDHURY AREF ,  NG HOCK MIN ,  SLUSHER RICHARD ELLIOTT

IPC: H01L21/205 ,  H01L21/306 ,  B81B1/00 ,  C23F1/40 ,  G02B6/12 ,  G02B6/122 ,  H01J1/30 ,  H01J1/304 ,  H01J9/02 ,  H01L21/20

Abstract: An apparatus, comprising: a layer of group III-nitride having a top surface, the top surface having a plurality of pyramidal structures of the group III-nitride; a metallic electrode located directly on a flat surface of the layer between portions of the layer having the pyramidal structures, the pyramidal structures of the top surface being physically separated from the electrode; and a phosphor screen facing the top surface.