Disclosed is an opto-electroactive device comprising a metallocene of the formula ##STR00001## wherein M is zirconium or hafnium; X is halogen and R.sup.1 R.sup.5 are each independently hydrogen, aryl, alkyl, halogen or --Si(R.sup.6).sub.3; or wherein at least two adjacent R substituents on at least one ring are joined to form a fused ring, which may be unsubstituted or substituted with aryl, alkyl, halogen or --Si(R.sup.6).sub.3; or wherein the R.sup.1 substituents on each ring are joined to link the rings in an ansa bridge, and wherein R.sup.6 is an alkyl group, a substituted alkyl group, an aryl group or a substituted aryl group. Also disclosed is a method for making an opto-electroactive device comprising a metallocene.