ABSTRACT
I. INTRODUCTION In exploring new optoelectronic materials and devices, a great deal of research effort is focused on reducing the dimensionality of the electronic structures in semiconductors. In low-dimensional semiconductor systems, three categories are usually considered: two-dimensional (2D) quantum wells, one-dimensional (ID) quantum wires, and zero-dimensional (OD) quantum dots [1]. In particular, ID semiconductors, often called quantum wires, have attracted considerable attention, because they exhibit a wealth of quantum phenomena and have potential as future optoelectronic devices. Chemically synthesized semiconducting polymers are re garded as natural quantum wires. Unique optical and electronic properties of con jugated polymers are due to the electrons delocalized ID polymer backbone, and they make it important materials for technological applications like light-emitting diodes, nonlinear optical devices, field-effect transistors, and so on [2].
