Blue Electroluminescence from Poly(2,5-diheptyloxy-1,4-phenylene)

Abstract
Poly(2,5-diheptyloxy-1,4-phenylene) has been prepared by oxidative coupling ofp-diheptyloxybenzene using iron (III) chloride as catalyst in chloroform at room temperature. The polymer obtained was completely soluble in chloroform. An electroluminescence diode based on this polymer emitting blue light was fabricated, and its properties are discussed in terms of the band structure of the diode.