A series of terminal dicyanovinylene-substituted quinquechalcogenophenes with increasing number of selenophene units is presented, and their spectroscopic, electrochemical, and thermal properties were investigated. Vacuum-deposited bulk-heterojunction solar cells with the novel chalcogenophenes as donor displayed high V OC up to 1 V, J SC close to 8 mA· cm− 2, and power conversion efficiencies over 3%.
