Photosensitivity enhancement of PLZT ceramics by positive ion implantation
Abstract
The photosensitivity of lead lanthanum zirconate titanate (PLZT) ceramic material used in high resolution, high contrast, and non-volatile photoferroelectric image storage and display devices is enhanced significantly by positive ion implantation of the PLZT near its surface. Implanted ions include H.sup.+, He.sup.+, Ne.sup.+, Ar.sup.+, as well as chemically reactive ions from Fe, Cr, and Al. The positive ion implantation advantageously serves to shift the absorption characteristics of the PLZT material from near-UV light to visible light. As a result, photosensitivity enhancement is such that the positive ion implanted PLZT plate is sensitive even to sunlight and conventional room lighting, such as fluorescent and incandescent light sources. The method disclosed includes exposing the PLZT plate to the positive ions at sufficient density, from 1.times.10.sup.12 to 1.times.10.sup.17, and with sufficient energy, from 100 to 500 KeV, to provide photosensitivity enhancement. The PLZT material may have a lanthanum content ranging from 5 to 10%, a lead zirconate content of 62 to 70 mole %, and a lead titanate content of 38 to 30%. The ions are implanted at a depth of 0.1 to 2 microns below the surface of the PLZT plate.
- Inventors:
-
- Albuquerque, NM
- Issue Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 864608
- Patent Number(s):
- 4391901
- Assignee:
- United States of America as represented by United States (Washington, DC)
- Patent Classifications (CPCs):
-
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
G - PHYSICS G03 - PHOTOGRAPHY G03C - PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
- DOE Contract Number:
- AT(29-1)-789
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- photosensitivity; enhancement; plzt; ceramics; positive; implantation; lead; lanthanum; zirconate; titanate; ceramic; material; resolution; contrast; non-volatile; photoferroelectric; image; storage; display; devices; enhanced; significantly; near; surface; implanted; chemically; reactive; advantageously; serves; shift; absorption; characteristics; near-uv; light; visible; result; plate; sensitive; sunlight; conventional; lighting; fluorescent; incandescent; sources; method; disclosed; exposing; sufficient; density; times; 10; 12; 17; energy; 100; 500; kev; provide; content; ranging; 62; 70; mole; 38; 30; depth; microns; below; absorption characteristics; chemically react; sufficient density; zirconate titanate; sufficient energy; ceramic material; light source; visible light; light sources; method disclosed; display device; chemically reactive; lanthanum zirconate; lead lanthanum; lead zirconate; ceramic mater; plzt ceramics; /430/252/359/365/501/
Citation Formats
Land, Cecil E, and Peercy, Paul S. Photosensitivity enhancement of PLZT ceramics by positive ion implantation. United States: N. p., 1983.
Web.
Land, Cecil E, & Peercy, Paul S. Photosensitivity enhancement of PLZT ceramics by positive ion implantation. United States.
Land, Cecil E, and Peercy, Paul S. Sat .
"Photosensitivity enhancement of PLZT ceramics by positive ion implantation". United States. https://www.osti.gov/servlets/purl/864608.
@article{osti_864608,
title = {Photosensitivity enhancement of PLZT ceramics by positive ion implantation},
author = {Land, Cecil E and Peercy, Paul S},
abstractNote = {The photosensitivity of lead lanthanum zirconate titanate (PLZT) ceramic material used in high resolution, high contrast, and non-volatile photoferroelectric image storage and display devices is enhanced significantly by positive ion implantation of the PLZT near its surface. Implanted ions include H.sup.+, He.sup.+, Ne.sup.+, Ar.sup.+, as well as chemically reactive ions from Fe, Cr, and Al. The positive ion implantation advantageously serves to shift the absorption characteristics of the PLZT material from near-UV light to visible light. As a result, photosensitivity enhancement is such that the positive ion implanted PLZT plate is sensitive even to sunlight and conventional room lighting, such as fluorescent and incandescent light sources. The method disclosed includes exposing the PLZT plate to the positive ions at sufficient density, from 1.times.10.sup.12 to 1.times.10.sup.17, and with sufficient energy, from 100 to 500 KeV, to provide photosensitivity enhancement. The PLZT material may have a lanthanum content ranging from 5 to 10%, a lead zirconate content of 62 to 70 mole %, and a lead titanate content of 38 to 30%. The ions are implanted at a depth of 0.1 to 2 microns below the surface of the PLZT plate.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {1}
}