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Performance Enhancement of Three-Dimensional MAPbI 3 Perovskite Solar Cells by Doping Perovskite Films with CsPbX 3 Quantum Dots.
- Source :
- Materials (1996-1944); Mar2024, Vol. 17 Issue 6, p1238, 15p
- Publication Year :
- 2024
-
Abstract
- Perovskite thin films directly impact solar cell properties, making defect reduction crucial in perovskite solar cell research. In our study, we used perovskite quantum dots in the anti-solvent to act as nucleation centers in MAPbI3 thin films. These centers had lower nucleation barriers than homogeneous nucleation, improving perovskite crystallinity, reducing defects, and extending carrier lifetime. Fine-tuning the energy band also enhanced carrier transport. The most effective results were obtained using CsPb(Br<subscript>0.5</subscript> I<subscript>0.5</subscript>)<subscript>3</subscript> perovskite quantum dots. The resulting device, ITO/SnO<subscript>2</subscript>/MAPbI<subscript>3</subscript> (300 nm)/spiro-OMeTAD (200 nm)/Ag (100 nm), achieved a 12.88% power conversion efficiency, a 16% increase from the standard element. The modified device maintained approximately 95% of its efficiency over 100 h in a 70% humidity environment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 19961944
- Volume :
- 17
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Materials (1996-1944)
- Publication Type :
- Academic Journal
- Accession number :
- 176367109
- Full Text :
- https://doi.org/10.3390/ma17061238