Titanium dioxide film co-doped with yttrium and erbium and method for producing the same

• US 6,602,338 B2
• Filed: 04/11/2001
• Issued: 08/05/2003
• Est. Priority Date: 09/18/2000
• Status: Active Grant

• Current Assignee: National Science Council
• Original Assignee: National Science Council
• Inventors: Hsieh, Wen-Feng, Chen, San-Yuan, Ting, Chu-Chi
• Primary Examiner(s): KOSLOW, CAROL M
• Application Number:
  US09/833,514
• Publication Number:
  US 20020056831A1
• Time in Patent Office: 846 Days
• Field of Search: 106/287.19, 252/301.4 R
• US Class Current: 106/287.19
• CPC Class Codes: C09K 11/7767 Chalcogenides

Abstract

A precursor composition of TiO₂ doped with erbium (Er) and yttrium (Y) for forming a film used in a planar optical waveguide amplifier. The precursor composition includes 100 mol % TiO₂ precursor compound, about 0.1-10 mol % erbium ion (Er³⁺) precursor compound, and about 1-50 mol % yttrium ion (Y³⁺) precursor compound, thereby forming a doped TiO₂ film co-doped with erbium and yttrium an amorphous structure to achieve the enhancing effect on photoluminescence properties.

Claims

1. A precursor composition of TiO2 doped with erbium (Er) and yttrium (Y) for forming a film used in a planar optical waveguide amplifier, comprising:

100 mol % TiO₂ precursor compound;

about 0.1-10 mol % erbium ion (Er³⁺) precursor compound; and

about 1-50 mol % yttrium ion (Y³⁺) precursor compound;

thereby forming a doped TiO₂ film co-doped with erbium and yttrium as an amorphous structure to achieve the enhancing effect on photoluminescence properties.

2. The precursor composition according to claim 1, wherein said erbium ion (Er³⁺) precursor compound is selected from a group consisting of erbium acetate, erbium carbonate, erbium chloride, erbium oxalate, erbium nitrate, and erbium isopropoxide.

3. The precursor composition according to claim 1, wherein said TiO₂ precursor compound is selected from a group consisting of titanium isopropoxide, titanium ethoxide, titanium chloride, and titanium butoxide.

4. The precursor composition according to claim 1, wherein said yttrium ion (Y³⁺) precursor compound is selected from a group consisting of yttrium acetate, yttrium carbonate, yttrium chloride, yttrium oxalate, yttrium nitrate, and yttrium isopropoxide.