AI Article Synopsis
- Quasi-2D Ruddlesden-Popper perovskites, specifically using 2-thiophenemethylammonium (ThMA), show great potential as optical gain materials for lasers due to their excellent optoelectronic properties.
- A novel solution-processed method with an anti-solvent treatment is introduced to optimize phase distribution and orientation in thin films, enhancing energy transfer efficiency.
- The research achieved green amplified spontaneous emission with a low threshold of 13.92 µJ/cm and developed a single-mode vertical-cavity laser with a narrow linewidth, paving the way for advanced multi-color or electrically driven lasers.
Article Abstract
Quasi-2D Ruddlesden-Popper perovskites attract great attention as an optical gain media in lasing applications due to their excellent optoelectronic properties. Herein, a novel quasi-2D Ruddlesden-Popper perovskite based on 2-thiophenemethylammonium (ThMA) is synthesized by a facile solution-processed method. In addition, an anti-solvent treatment method is proposed to tune the phase distribution, and preferential orientation of quasi-2D (ThMA)CsnPbnBr thin films. The large-n-dominated narrow domain distribution improves the energy transfer efficiency from small-n to large-n phases. Also, the highly oriented nanocrystals facilitate the efficient Förster energy transfer, beneficial for the carrier population transfer. Furthermore, a green amplified spontaneous emission with a low threshold of 13.92 µJ/cm is obtained and a single-mode vertical-cavity laser with an 0.4 nm linewidth emission is fabricated. These findings provide insights into the design of the domain distribution to realize low-threshold multicolor continuous-wave or electrically driven quasi-2D perovskites laser.
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| http://dx.doi.org/10.1364/OE.471849 | DOI Listing |
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