Back to Search
Start Over
A Self-Assembled 3D/0D Quasi-Core-Shell Structure as Internal Encapsulation Layer for Stable and Efficient FAPbI 3 Perovskite Solar Cells and Modules.
- Source :
-
Small (Weinheim an der Bergstrasse, Germany) [Small] 2024 Apr; Vol. 20 (14), pp. e2306954. Date of Electronic Publication: 2023 Nov 21. - Publication Year :
- 2024
-
Abstract
- FAPbI <subscript>3</subscript> perovskites have garnered considerable interest owing to their outstanding thermal stability, along with near-theoretical bandgap and efficiency. However, their inherent phase instability presents a substantial challenge to the long-term stability of devices. Herein, this issue through a dual-strategy of self-assembly 3D/0D quasi-core-shell structure is tackled as an internal encapsulation layer, and in situ introduction of excess PbI <subscript>2</subscript> for surface and grain boundary defects passivating, therefore preventing moisture intrusion into FAPbI <subscript>3</subscript> perovskite films. By utilizing this method alone, not only enhances the stability of the FAPbI <subscript>3</subscript> film but also effectively passivates defects and minimizes non-radiative recombination, ultimately yielding a champion device efficiency of 23.23%. Furthermore, the devices own better moisture resistance, exhibiting a T <subscript>80</subscript> lifetime exceeding 3500 h at 40% relative humidity (RH). Meanwhile, a 19.51% PCE of mini-module (5 × 5 cm <superscript>2</superscript> ) is demonstrated. This research offers valuable insights and directions for the advancement of stable and highly efficient FAPbI <subscript>3</subscript> perovskite solar cells.<br /> (© 2023 Wiley‐VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 1613-6829
- Volume :
- 20
- Issue :
- 14
- Database :
- MEDLINE
- Journal :
- Small (Weinheim an der Bergstrasse, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 37990368
- Full Text :
- https://doi.org/10.1002/smll.202306954