IP Library Granted Patent US 9,773,876
Granted Patent B2
US 9,773,876 · App. 15/194,715 · Granted Sep 26, 2017

Semiconductor composition containing iron, dysprosium, and terbium

Inventors: Raphael C. Pooser (Knoxville, TN); Benjamin J. Lawrie (Oak Ridge, TN); Arthur P. Baddorf (Knoxville, TN); Abhinav Malasi (Knoxville, TN); Humaira Taz (Knoxville, TN); Annettee E. Farah (Knoxville, TN); Ramakrishnan Kalyanaraman (Knoxville, TN); Gerd Josef Mansfred Duscher (Knoxville, TN); Maulik K. Patel (Knoxville, TN)
Assignee: UT-Battelle, LLC
H01L29/247C03C3/12C03C4/00C03C17/02C23C14/08H01L29/786
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Quick Facts
Patent No.
US 9,773,876
App. No.
15/194,715
Granted
Sep 26, 2017
Kind
B2
Abstract

An amorphous semiconductor composition includes 1 to 70 atomic percent iron, 15 to 65 atomic percent dysprosium, 15 to 35 atomic percent terbium, balance X, wherein X is at least one of an oxidizing element and a reducing element. The composition has an essentially amorphous microstructure, an optical transmittance of at least 50% in at least the visible spectrum and semiconductor electrical properties.

Claims (20)

1. An amorphous semiconductor composition comprising 1 to 70 atomic percent iron, 15 to 65 atomic percent dysprosium, 15 to 35 atomic percent terbium, balance X, wherein X is at least one element selected from the group consisting of an oxidizing element and a reducing element, said composition having an essentially amorphous microstructure, an optical transmittance of at least 50% in at least the visible spectrum and semiconductor electrical properties.

2. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition comprises 10 to 60 atomic percent iron.

3. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition comprises 10 to 50 atomic percent iron.

4. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition comprises 25 to 55 atomic percent dysprosium.

5. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition comprises 20 to 30 atomic percent terbium.

6. An amorphous semiconductor composition in accordance with claim 1 wherein said oxidizing element is oxygen.

7. An amorphous semiconductor composition in accordance with claim 1 wherein said reducing element is at least one element selected from the group consisting of sulfur, hydrogen, and nitrogen.

8. An amorphous semiconductor composition in accordance with claim 1 wherein said optical transmittance is at least 70% in the visible spectrum.

9. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition is characterized by room temperature ferromagnetism.

10. An amorphous semiconductor composition in accordance with claim 1 wherein said semiconductor composition is characterized by semiconductor electrical behavior.

11. A semiconductor device comprising a substrate having an amorphous semiconductor layer adherently disposed thereon, said amorphous semiconductor layer comprising 1 to 70 atomic percent iron, 15 to 65 atomic percent dysprosium, 15 to 35 atomic percent terbium, balance X, wherein X is at least one element selected from the group consisting of an oxidizing element and a reducing element, said composition having an essentially amorphous microstructure, an optical transmittance of at least 50% in at least the visible spectrum and semiconductor electrical properties.

12. A semiconductor device in accordance with claim 11 wherein said semiconductor composition comprises 10 to 60 atomic percent iron.

13. A semiconductor device in accordance with claim 11 wherein said semiconductor composition comprises 10 to 50 atomic percent iron.

14. A semiconductor device in accordance with claim 11 wherein said semiconductor composition comprises 25 to 55 atomic percent dysprosium.

15. A semiconductor device in accordance with claim 11 wherein said semiconductor composition comprises 20 to 30 atomic percent terbium.

16. A semiconductor device in accordance with claim 11 wherein said oxidizing element is oxygen.

17. A semiconductor device in accordance with claim 11 wherein said reducing element is at least one element selected from the group consisting of sulfur, hydrogen, and nitrogen.

18. A semiconductor device in accordance with claim 11 wherein said optical transmittance is at least 70% in the visible spectrum.

19. A semiconductor device in accordance with claim 11 wherein said semiconductor composition is characterized by room temperature ferromagnetism.

20. A semiconductor device in accordance with claim 11 wherein said semiconductor composition is characterized by semiconductor electrical behavior.

Assignments (3)
CONFIRMATORY LICENSE Recorded Aug 24, 2016
From: UT-BATTELLE, LLC
To: U.S. DEPARTMENT OF ENERGY
Reel/Frame 039523/0068 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2016
From: MALASI, ABBINAV; TAZ, HUMAIRA; FARAH, ANNETTE E.; KALYANARAMAN, RAMAKRISHNAN; DUSCHER, GERD JOSEF MANSFRED; PATEL, MAULIK K.
To: UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION
Reel/Frame 039391/0556 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 10, 2016
From: POOSER, RAPHAEL C.; LAWRIE, BENJAMIN J.; BADDORF, ARTHUR P.
To: UT-BATTELLE, LLC
Reel/Frame 039391/0631 →
Continuity (2)
Provisional Application 62187859 · Jul 2, 2015
Related Publication 20170005170A1 · Jan 5, 2017