We use extended Huckel methods of molecular orbitds and crystal orbitals (EHMO/CO) to calculate the two-dimensional band structures of highly oriented trans-polyacetylene (PA) undoped and doped with SO3. According to ...
Project supported by the National Natural Science Foundation of China
Ⅰ. INTRODUCTIONA problem needing urgent resolution in the world at present is the study of the polyacetylene (PA) conductive material which is stable in the air. We produce the polyacetylene-like sulfide (SLPA) which...
I. INTRODUCTIONIn last decade, considerable attention was focused on polyacetylene. However, its practical application was affected considerably because of its poor strength and stability. Recently, Narrmann et al. re...
Ⅰ. INTRODUCTION Polyacetylene has been considerably investigated as a polymeric conducting material for over a decade. The mechanism of its insulator-to-metal transition and the nature of its electronic conduction ar...
Ⅰ. INTRODUCTION It is well known that organic polymers are insulators. However, MacDiarmid, Heeger, Shirakawa et al. announced the first discovery of conductivity in an organic polymer, (CH)_x by doping at the New Yo...