TY - JOUR N2 - Three low molecular weight compounds bearing carbazole units (1,6-di{3-[2-(4-methylphenyl)vinyl]carbazol-9-yl}hexane and 9,9'-di{6-[3-(2-(4-methylphenyl)vinyl)-9-carbazol-9-yl]hexyl}-[3,3']bicarbazole) and phenoxazine structure (10-butyl-3,7-diphenylphenoxazine) were tested as hole-transporting materials in perovskite solar cells. Two of them were successfully applied as hole transporting layers in electroluminescent light emitted diodes. The examined compounds were high-thermally stable with decomposition temperature found at the range of 280–419 °C. Additionally, DSC measurement revealed that they can be converted into amorphous materials. The compounds possess adequate ionization potentials, to perovskite energy levels, being in the range of 5.15–5.36  eV. The significant increase in power conversion efficiency from 1.60% in the case of a device without hole-transporting layer, to 5.31% for device with 1,6-di{3-[2-(4-methylphenyl)vinyl]carbazol-9- yl}hexane was observed. L1 - http://journals.pan.pl/Content/115247/PDF/opelre_2019_27_2_137-142.pdf L2 - http://journals.pan.pl/Content/115247 PY - 2019 IS - No 2 EP - 142 KW - Carbazole derivatives KW - Perovskite photovoltaic cells KW - Hole transporting materials A1 - Gawlińska-Nęcek, K. A1 - Starowicz, Zbigniew A1 - Tavgeniene, D. A1 - Krucaite, G. A1 - Grigalevicius, S. A1 - Schab-Balcerzak, Ewa A1 - Lipiński, M. PB - Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology VL - vol. 27 DA - 24.05.2019 T1 - A solution-processable small-organic molecules containing carbazole or phenoxazine structure as hole-transport materials for perovskite solar cells SP - 137 UR - http://journals.pan.pl/dlibra/publication/edition/115247 T2 - Opto-Electronics Review ER -