Details

Autor(en) / Beteiligte

• Rakstys, Kasparas
• Paek, Sanghyun
• Drevilkauskaite, Aida
• Kanda, Hiroyuki
• Daskeviciute, Sarune
• Shibayama, Naoyuki
• Daskeviciene, Maryte
• Gruodis, Alytis
• Kamarauskas, Egidijus
• Jankauskas, Vygintas
• Getautis, Vytautas
• Nazeeruddin, Mohammad Khaja

Titel

Carbazole-Terminated Isomeric Hole-Transporting Materials for Perovskite Solar Cells

Ist Teil von

• ACS applied materials & interfaces, 2020-04, Vol.12 (17), p.19710-19717

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2020

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• A set of novel hole-transporting materials (HTMs) based on π-extension through carbazole units was designed and synthesized via a facile synthetic procedure. The impact of isomeric structural linking on their optical, thermal, electrophysical, and photovoltaic properties was thoroughly investigated by combining the experimental and simulation methods. Ionization energies of HTMs were measured and found to be suitable for a triple-cation perovskite active layer ensuring efficient hole injection. New materials were successfully applied in perovskite solar cells, which yielded a promising efficiency of up to almost 18% under standard 100 mW cm–2 global AM1.5G illumination and showed a better stability tendency outperforming that of 2,2′,7,7′-tetrakis-(N,N-di-p-methoxyphenylamine)-9,9′-spirobifluorene. This work provides guidance for the molecular design strategy of effective hole-conducting materials for perovskite photovoltaics and similar electronic devices.