Naphthacene (Benz[b]anthracene) is a fused polycyclic aromatic compound exhibiting an electron field-effect mobility of approximately 10 cm2/Vs; it is an ethylnylated acene that functions as a conducting polymer, making it suitable for use as a donor material. Its exceptional photoluminescence and quantum yield position naphthacene as a highly promising candidate for the advancement of single crystal electronic materials.