Looking for a Safe Bridge: Synthesis of P3HT-Bridge-TBO Block-Copolymers and Their Performance in Perovskite Solar Cells
Aleksandra N. Zhivchikova,
Irina V. Klimovich,
Maxim E. Sideltsev,
Aly Elakshar,
Artur T. Kapasharov,
Alexander V. Akkuratov,
Albert G. Nasibulin,
Keith J. Stevenson,
Marina M. Tepliakova
Affiliations
Aleksandra N. Zhivchikova
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, Academician Semenov Avenue 1, 142432 Chernogolovka, Russia
Irina V. Klimovich
ChemRAR, 2a-1, Rabochaya St. Khimki, 141401 Moscow, Russia
Maxim E. Sideltsev
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, Academician Semenov Avenue 1, 142432 Chernogolovka, Russia
Aly Elakshar
Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia
Artur T. Kapasharov
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, Academician Semenov Avenue 1, 142432 Chernogolovka, Russia
Alexander V. Akkuratov
Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry of Russian Academy of Sciences, Academician Semenov Avenue 1, 142432 Chernogolovka, Russia
Albert G. Nasibulin
Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia
Keith J. Stevenson
Department of Chemistry, Moscow State University, 1 Leninskiye Gory, 119991 Moscow, Russia
Marina M. Tepliakova
Skolkovo Institute of Science and Technology, Bolshoy Boulevard 30, bld. 1, 121205 Moscow, Russia
Here, we present a synthesis of three novel conjugated block-copolymers (BCP) with general formula P3HT-bridge-TBO, where P3HT is a poly(3-hexyl)thiophene, TBO is a thiophene-benzothiadiazole block, and the bridge is composed of two fluorene units (FF) or two thiophenes (TT) or a mixture (TF). It is demonstrated that the physicochemical properties of the materials with different bridges are similar. Furthermore, P3HT-bridge-TBO materials are investigated in PSCs with classical n-i-p configuration for the first time. PSCs with BCPs reach average efficiencies with a top of 14.4% for P3HT-FF-TBO. At the same time, devices demonstrate spectacular long-term operation stability after 1000 h under constant illumination with minor changes in efficiency, while PSCs with state-of-the-art hole-transport layer demonstrate unstable behavior. This groundbreaking work demonstrates the potential of BCP to ensure the stable operation of perovskite photovoltaics.
