| Autor: |
Zamoretskov DS; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru., Kuznetsov IE; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru., Zhivchikova AN; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru.; Skolkovo Institute of Science and Technology, Nobel St. 3, 143026, Moscow, Russian Federation., Tepliakova MM; Skolkovo Institute of Science and Technology, Nobel St. 3, 143026, Moscow, Russian Federation., Sagdullina DK; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru., Gapanovich MV; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru.; Moscow State University, 119992, Moscow, Russian Federation., Kurbatov VG; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru., Nasibulin AG; Skolkovo Institute of Science and Technology, Nobel St. 3, 143026, Moscow, Russian Federation., Akkuratov AV; Federal Research Center of Problems of Chemical Physics and Medicinal Chemistry, Russian Academy of Sciences. FRC PCPMC RAS, Academician Semenov Avenue 1, Chernogolovka, 142432, Moscow region, Russian Federation. akkuratow@yandex.ru. |
| Abstrakt: |
Hybrid organic-inorganic perovskite solar cells (PSCs) have drawn great attention in the past decade due to the rapid growth of their power conversion efficiency (PCE) and the advantage of their low-cost fabrication. The hole-transport materials (HTMs) play a crucial role in achieving high efficiency and operational stability of PSCs. In this work, we report the synthesis of two novel conjugated polymers by coupling of the alkylsilyl-substituted benzo[1,2- b :4,5- b ']dithiophene unit with the thiophene-bridged pyrazine block and their investigation as dopant-free HTMs in n-i-p PSCs. The devices with polymer PBPyT-ex (poly[(4,8-bis(5-(triisopropylsilyl)thiophen-2-yl)-2,6-benzo[1,2- b :4,5- b ']dithiophene)- alt -5,5'-(2,5-bis(4-(2-ethylhexyl)thiophen-2-yl)pyrazine)]) demonstrate PCEs up to 17.5%, outperforming the 14.9% efficiency of PSCs with PBPyT-in (poly[(4,8-bis(5-(triisopropylsilyl)thiophen-2-yl)-2,6-benzo[1,2- b :4,5- b ']dithiophene)- alt -5,5'-(2,5-bis(3-(2-ethylhexyl)thiophen-2-yl)pyrazine)]), which is attributed to the difference in the quality of HTM films. The results obtained feature the combination of pyrazine, thiophene and benzodithiophene units as a successful example of polymeric HTM backbone design for PSCs with encouraging efficiency and high operational stability over 1500 h under continuous illumination. |
