公开(公告)号：JP2000233999A

公开(公告)日：2000-08-29

申请号：JP2000029412

申请日：2000-02-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PAUL VANNEST BROWN ,  PATEL SANJAY ,  PIERRE WIRUCHIIUSU

IPC: C30B29/62 ,  G02B5/20 ,  G02B6/12 ,  H01L21/02

Abstract: PROBLEM TO BE SOLVED: To produce a substance comprising a material exhibiting periodicity by introducing a liquid dispersion of nanoparticles having a specified particle diameter into the crystals of a template comprising colloid crystals to form a mutually connected structure and then removing the colloid crystals. SOLUTION: A template of colloid crystals comprising polystyrene, polymethyl methacrylate and silica is prepared. The average grain diameter of the colloid crystals is about 100 nm to 5 μm. A liquid dispersion of nanoparticles whose average diameter is about 1 nm or 30%, preferably about 10%, of the average diameter of the colloid crystals is introduced into the colloid crystals to form a coherent structure from the nanoparticles. The nanoparticles comprise titania, silicon, germanium or gallium phosphide. Colloid crystals are then removed from the resulting composite material by heating or acid etching to obtain the objective photonic band gap substance exhibiting periodicity.

公开(公告)号：JP2000233998A

公开(公告)日：2000-08-29

申请号：JP2000029411

申请日：2000-02-07

Applicant: LUCENT TECHNOLOGIES INC

Inventor： PAUL VANNEST BROWN ,  MICHAEL LEWIS STAEGERWORLD ,  PIERRE WIRUCHIIUSU

IPC: B01J19/08 ,  C30B29/48 ,  C30B29/68 ,  G02B6/122 ,  G02B6/13

Abstract: PROBLEM TO BE SOLVED: To produce a substance comprising a material exhibiting periodicity by preparing a template comprising colloid crystals, electrochemically depositing a lattice material on the colloid crystals and then removing the colloid crystals. SOLUTION: Colloid crystals comprising polystyrene, polymethyl methacrylate and silica are formed on an electrically conductive substrate. The average grain diameter of the colloid crystals is about 100 nm to 5 μm. A lattice material selected from cadmium sulfide, cadmium selenide, zinc selenide and selenium is electrochemically deposited on the colloidal crystals along a plane which moves in one direction. The colloid crystals are then removed by heating as a coherent nanoparticle structure or by acid etching, e.g. with HF to obtain the objective photonic band gap substance exhibiting substantial periodicity on a micron scale.