The present teachings relate to new semiconducting polymers including an optionally substituted naphtho[1,2-d:5,6-d]bis[1,2,3]thiadiazole moiety, an optionally substituted naphtho[2,1-d:6,5-d]bis[1,2,3]thiadiazole moiety, or a chalcogen analog thereof. The present polymers can be used to prepare thin film semiconductor components which can be incorporated into various electronic, optical, and optoelectronic devices.