| 초록 |
New Donor-Acceptor-Donor (D–A–D) type organic small molecules incorporating benzothiadiazole derivatives were designed, synthesized, and used as hole transporting materials for perovskite solar cells (PSCs). By substituting different functional groups at positions 4 and 5 of benzothiadiazole such as methyl, methoxy, hexyloxy, diflouride, the physical properties of HTM and optical properties were investigated. This work provides guidance for the molecular design strategy of effective hole-conducting materials for perovskite photovoltaics.
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