Postprint. Copyright 1998. Society of Photo-Optical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Organic Light-Emitting Materials and Devices II: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 19-24 July 1998, San Diego, CA, USA