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Very Compact Cathode Ray tubes Using Diamond P-N Junction Cold Cathode

Award Information

Department of Defense
Award ID:
Program Year/Program:
1993 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Applied Sciences
141 West Xenia Avenue PO Box 579 Cedarville, OH 45314-0579
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 1993
Title: Very Compact Cathode Ray tubes Using Diamond P-N Junction Cold Cathode
Agency / Branch: DOD / ARMY
Contract: N/A
Award Amount: $49,822.00


Very compact cathode ray tubes could be fabricated if high voltages presently required for normal operation could be reduced by a factor of ten. This requires a very effective cold cathode. A cold cathode capable of delivering several hundred amps per square centimeter (under ambient conditions without the introductin of cesium vapor) would be valuable for a number of applications in high power high frequency electronics. One of the most highly sought applications is that of cathode ray tube visual displays. Decreased voltage requirements would simplify the power supply requirements and allow a shorter CRT to be manufactured. This is of obvious utility of aerospace applications and could also be very attractive for consumer video displays as well. A method is described herein for manufacturing a cold cathode device using p-type diamond in direct contact with highly doped n-type silicon. Unlike other schemes for using diamonds as a cathode material, there is no need to manufacture n-type diamond.

Principal Investigator:

Elliot B. Kennel

Business Contact:

Small Business Information at Submission:

Space Exploration Associates
141 West Xenia Ave. Po Box 579 Cedarville, OH 45314

Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No