With a tight binding model, the electronic optical properties of diblock co
polymers were studied. It was found that the Light-emitting wavelength depe
nded on the nature and ratio of the homopolymers. The results were consiste
nt with experiments and quantum chemical calculations, which guided the sel
ection of suitable emitting light (EL) materials. (C) 2001 Elsevier Science
B.V. All rights reserved.