Back to Search
Start Over
Highly oriented quasi-2D layered tin halide perovskites with 2-thiopheneethylammonium iodide for efficient and stable tin perovskite solar cells.
- Source :
- New Journal of Chemistry; 2/7/2022, Vol. 46 Issue 5, p2259-2265, 7p
- Publication Year :
- 2022
-
Abstract
- 3D tin-based halide perovskites are promising light absorbers for perovskite solar cells (PSCs) due to their non-toxicity, suitable optical band gaps, and excellent optoelectronic properties. However, the inherent rapid crystallization and easy oxidation of Sn<superscript>2+</superscript> to Sn<superscript>4+</superscript> in 3D perovskites result in a low power conversion efficiency (PCE) and poor stability of tin perovskite solar cells compared with the lead counterparts. In this report, quasi-2D hybrid tin-based perovskite films are fabricated by using 2-thiopheneethylammonium (TEA<superscript>+</superscript>) as the spacer cation in MASnI<subscript>3</subscript> (MA: CH<subscript>3</subscript>NH<subscript>3</subscript><superscript>+</superscript>), leading to the formation of quasi-2D perovskite films with high orientation and a low content of Sn<superscript>4+</superscript>. As a result, the perovskite solar cells show a considerable power-conversion efficiency of 6.8%, which is among the highest values reported for MASnI<subscript>3</subscript>-based solar cells. Moreover, the devices exhibited excellent stability compared with the device without TEAI. [ABSTRACT FROM AUTHOR]
- Subjects :
- SOLAR cells
PEROVSKITE
ARYL iodides
TIN
IODIDES
BAND gaps
HALIDES
Subjects
Details
- Language :
- English
- ISSN :
- 11440546
- Volume :
- 46
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- New Journal of Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 154970063
- Full Text :
- https://doi.org/10.1039/d1nj05178d