| Title |
In situ thermal cross-linking of 9,9'-spirobifluorene-based hole-transporting layer for perovskite solar cells / |
| Authors |
Daskeviciute-Geguziene, Sarune ; Truong, Minh Anh ; Rakstys, Kasparas ; Daskeviciene, Maryte ; Hashimoto, Ruito ; Murdey, Richard ; Yamada, Takumi ; Kanemitsu, Yoshihiko ; Jankauskas, Vygintas ; Wakamiya, Atsushi ; Getautis, Vytautas |
| DOI |
10.1021/acsami.3c13950 |
| Full Text |
|
| Is Part of |
ACS Applied materials & interfaces.. Washington : American Chemical Society. 2024, vol. 16, iss. 1, p. 1206-1216.. ISSN 1944-8244. eISSN 1944-8252 |
| Keywords [eng] |
cross-linking ; hole-transporting layer ; perovskite solar cell ; spirobifluorene ; temperature |
| Abstract [eng] |
A novel 9,9'-spirobifluorene derivative bearing thermally cross-linkable vinyl groups (V1382) was developed as a hole-transporting material for perovskite solar cells (PSCs). After thermal cross-linking, a smooth and solvent-resistant three-dimensional (3D) polymeric network is formed such that orthogonal solvents are no longer needed to process subsequent layers. Copolymerizing V1382 with 4,4'-thiobisbenzenethiol (dithiol) lowers the cross-linking temperature to 103 °C via the facile thiol-ene "click" reaction. The effectiveness of the cross-linked V1382/dithiol was demonstrated both as a hole-transporting material in p-i-n and as an interlayer between the perovskite and the hole-transporting layer in n-i-p PSC devices. Both devices exhibit better power conversion efficiencies and operational stability than devices using conventional PTAA or Spiro-OMeTAD hole-transporting materials. |
| Published |
Washington : American Chemical Society |
| Type |
Journal article |
| Language |
English |
| Publication date |
2024 |
| CC license |
|
