| Title |
Asymmetric perinone-based electron-collecting monolayer materials for n–i–p perovskite solar cells |
| Authors |
Petrulevicius, Julius ; Truong, Minh Anh ; Daskeviciene, Maryte ; Bubniene, Giedre ; Hira, Shota ; Iwasaki, Yasuko ; Malinauskas, Tadas ; Wakamiya, Atsushi ; Getautis, Vytautas |
| DOI |
10.1039/d5tc01485a |
| Full Text |
|
| Is Part of |
Journal of materials chemistry C.. Cambridge : Royal Society of Chemistry. 2025, vol. 13, iss. 29, p. 14991-15001.. ISSN 2050-7526. eISSN 2050-7534 |
| Keywords [eng] |
benzimidazole derivatives ; interface ; efficiency ; acceptors |
| Abstract [eng] |
A series of asymmetric perinone derivatives (PERNI) bearing different substituents (methyl, fluoro, chloro, bromo, and cyano) on the benzimidazole moiety were synthesized and investigated for possible application as electron-collecting monolayer materials in negative–intrinsic–positive perovskite solar cells. These compounds exhibit good thermal stability and suitable frontier molecular orbital energy levels for electron extraction and hole blocking. The perinone-based devices were found to demonstrate comparable power conversion efficiencies and higher operational stability than reference devices using the representative naphthalene diimide-based monolayer material under the same fabrication conditions. Within the PERNI series, devices fabricated with the chloro-substituted PERNI-Cl were found to tend to exhibit the highest open-circuit voltage and fill factor owing to the smallest energy offset between the lowest unoccupied molecular orbital and the conduction band of the perovskite. |
| Published |
Cambridge : Royal Society of Chemistry |
| Type |
Journal article |
| Language |
English |
| Publication date |
2025 |
| CC license |
|
