of phenylethynylene oligomers capped by different terminal groups, such as naphthyl or benzyl benzoates, coupled with their good solubility, has led to their introduction as chromophores in a polymer matrix of poly(vinylcarbazole) for laser emission studies. (J. Le Moigne et al., September 16, Adv. Mater. 2002, 14, 1297-1301)