ABSTRACT

I. INTRODUCTION Optoelectronics technology, which has a direct impact on modem information proc­ essing systems and optical communication, represents a major sector of the world economy. Although conventional inorganic optoelectronic devices based primarily on III-V and II-VI semiconductors are maturing, research advancement in novel materials and device configurations are still needed to reduce cost and to further improve device performance and manufacturability. It turns out that organic ma­ terials have the potential to meet these needs [1-5]. Some organic materials have been found to possess the electrical and optical properties traditionally associated with metals and semiconductors, while retaining their mechanical properties. Among these, conjugated polymers are one of the more promising. Thus, the dream of using these materials in a variety of commercial display applications was bom.