Carbazole-based hole-transport materials for efficient solid-state dye-sensitized solar cells and perovskite solar cells.

Xu, Bo; Sheibani, Esmaeil; Liu, Peng; Zhang, Jinbao; Tian, Haining; Vlachopoulos, Nick; Boschloo, Gerrit; Kloo, Lars et al. · Adv Mater · 2014

basic_science · Level V

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Abstract

Two carbazole-based small molecule hole-transport materials (HTMs) are synthesized and investigated in solid-state dye-sensitized solar cells (ssDSCs) and perovskite solar cells (PSCs). The HTM X51-based devices exhibit high power conversion efficiencies (PCEs) of 6.0% and 9.8% in ssDSCs and PSCs, respectively. These results are superior or comparable to those of 5.5% and 10.2%, respectively, obtained for the analogous cells using the state-of-the-art HTM Spiro-OMeTAD.