Asymmetrically Substituted 10H,10'H-9,9'-Spirobi[acridine] Derivatives as Hole-Transporting Materials for Perovskite Solar Cells

Autor: Jianxing Xia, Yi Zhang, Marco Cavazzini, Simonetta Orlandi, Bin Ding, Hiroyuki Kanda, Nadja Klipfel, Xiao‐Xin Gao, Qurat Ul Ain, Vygintas Jankauskas, Kasparas Rakstys, Ruiyuan Hu, Zeliang Qiu, Abdullah M. Asiri, Hobeom Kim, Paul J. Dyson, Gianluca Pozzi, Mohammad Khaja Nazeeruddin
Rok vydání: 2022
Předmět:
Zdroj: Angewandte Chemie (International ed. in English). 61(48)
ISSN: 1521-3773
Popis: Hole-transporting materials (HTMs) based on the 10H, 10'H-9,9'-spirobi [acridine] core (BSA50 and BSA51) were synthesized, and their electronic properties were explored. Experimental and theoretical studies show that the presence of rigid 3,6-dimethoxy-9H-carbazole moieties in BSA 50 brings about improved hole mobility and higher work function compared to bis(4-methoxyphenyl)amine units in BSA51, which increase interfacial hole transportation from perovskite to HTM. As a result, perovskite solar cells (PSCs) based on BSA50 boost power conversion efficiency (PCE) to 22.65 %, and a PSC module using BSA50 HTM exhibits a PCE of 21.35 % (6.5×7 cm) with a V
Databáze: OpenAIRE