| Title |
Dopant-free hole transport materials afford efficient and stable inorganic perovskite solar cells and modules / |
| Authors |
Nazeeruddin, Mohammad Khaja ; Liu, Cheng ; Igci, Cansu ; Yang, Yi ; Syzgantseva, Olga A ; Syzgantseva, Maria A ; Rakstys, Kasparas ; Kanda, Hiroyuki ; Shibayama, Naoyuki ; Ding, Bin ; Zhang, Xianfu ; Jankauskas, Vygintas ; Ding, Yong ; Dai, Songyuan ; Dyson, Paul |
| DOI |
10.1002/anie.202107774 |
| Full Text |
|
| Is Part of |
Angewandte chemie (international edition).. Weinheim : Wiley-VCH. 2021, vol. 60, iss. 37, p. 20489-20497.. ISSN 1433-7851. eISSN 1521-3773 |
| Keywords [eng] |
inorganic perovskites ; defect passivation ; dopant-free ; hole transport materials ; perovskite solar cells |
| Abstract [eng] |
The emerging CsPbI3 perovskites are highly efficient and thermally stable materials for wide-bandgap perovskite solar cells (PSCs), but the doped hole transport materials (HTMs) accelerate the undesirable phase transition of CsPbI3 in ambient. Herein, a dopant-free D-π-A type HTM named CI-TTIN-2F has been developed which overcomes this problem. The suitable optoelectronic properties and energy-level alignment endow CI-TTIN-2F with excellent charge collection properties. Moreover, CI-TTIN-2F provides multisite defect-healing effects on the defective sites of CsPbI3 surface. Inorganic CsPbI3 PSCs with CI-TTIN-2F HTM feature high efficiencies up to 15.9%, along with 86% efficiency retention after 1000 h under ambient conditions. Inorganic perovskite solar modules were also fabricated that exhibiting an efficiency of 11.0% with a record area of 27 cm2. This work confirms that using efficient dopant-free HTMs is an attractive strategy to stabilize inorganic PSCs for their future scale-up. |
| Published |
Weinheim : Wiley-VCH |
| Type |
Journal article |
| Language |
English |
| Publication date |
2021 |
| CC license |
|
