Sa. Jenekhe et al., FINITE-SIZE EFFECTS ON ELECTROLUMINESCENCE OF NANOSCALE SEMICONDUCTING POLYMER HETEROJUNCTIONS, Chemistry of materials, 9(2), 1997, pp. 409
Among the novel finite size effects observed in a series of nanoscale
(25-100 nm) semiconducting polymer heterojunctions, such as polyquinol
ine(PPQ)/poly(p-phenylene vinylene) (PPV), is the reversible switching
of electroluminescence (EL) colors (orange/red <-> green) by the appl
ied voltage. The finite size effects are related to the charge carrier
ranges in semiconducting polymers and are expected to be important in
electronic and optoelectronic devices from organic semiconductors.