The invention relates to polymers comprising fused selenophene rings, to {TAIL ~ their use} as semiconductors or charge transport materials in {HEAD ~ optical, electrooptical or electronic devices}, and to optical, electrooptical or electronic devices comprising them 
The invention relates to polymers comprising fused selenophene rings , to { TAIL ~ their use } as semiconductors or charge transport materials in { HEAD ~ optical , electrooptical or electronic devices } , and to optical , electrooptical or electronic devices comprising them
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH