Summer Research Extension Program. Volume 4A. Wright Laboratory

Abstract

Public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including Operations and Reports, 1215 Jefferson Davis Highway, Suite 1204, Arlington, VA 222024302, and to the Office of Management and Budget, r. AFRL-SR-BL-TR. 00-ind reviewing r Information AGENCY USE ONLY {Leave blank)TTÜPORT DATE December, 1996 3. REPORT TYPE AND DATES COVERED TITLE AND SUBTITLE1996 Summer Research Program (SRP), Summer Research Extension Program (SREP), Final Report, Volume 4A, Wright Laboratory AUTHOR(S)Gary Moore FUNDING NUMBERS F49620-93-C-0063 PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES)Research & Development Laboratories (RDL) 5800 Uplander Way Culver City, CA 90230-6608 The United States Air Force Summer Research Program (SRP) is designed to introduce university, college, and technical institute faculty members to Air Force research. This is accomplished by the faculty members, graduate students, and high school students being selected on a nationally advertised competitive basis during the summer intersession period to perforn research at Air Force Research Laboratory (AFRL) Technical Directorates and Air Force Air Logistics Centers (ALC). AFOSR also offers its research associates (faculty only) an opportunity, under the Summer Research Extension Program (SREP), to continue their AFOSR-sponsored research at their home institutions through the award of research grants. This volume consists of a listing of the participants for the SREP and the technical report from each participant working at the AI Wright Laboratory. PERFORMING ORGANIZATION REPORT NUMBER SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES)Air SUBJECT TERMS GENERAL INSTRUCTIONS FOR COMPLETING SF 298The Report Documentation Page (RDP) is used in announcing and cataloging reports. It is important that this information be consistent with the rest of the report, particularly the cover and title page. Instructions for filling in each block of the form follow. It is important to stay within the lines to meet optical scanning requirements. Reports presented in this volume are arranged alphabetically by author and are numbered consecutivelye.g., 1-1, 1-2, 1-3; 2-1, 2-2, 2-3, with each series of reports preceded by a 35 page management summary. Reports in the five-volume set are organized as follows: VOLUME TITLE ABSTRACTWe analyze the importance of current crowding in a new cold cathode emitter which consists of a thin wide bandgap semiconductor material sandwiched between a metallic or heavily doped semiconductor and a low work function semimetallic thin film. Potential material candidates are suggested to achieve low-voltage (< 10 V), room-temperature cold cathode operation with emission currents of several tens of A/ cm 2 . We calculate the lateral potential drop which occurs across the emission window of cold cathodes with circular geom...