Publications by authors named "Parsa Darman"
Lead halide perovskites have emerged as platforms for exciton-polaritonic studies at room temperature, thanks to their excellent photoluminescence efficiency and synthetic versatility. In this work, we find proof of strong exciton-photon coupling in cavities formed by the layered crystals themselves, a phenomenon known as the self-hybridization effect. We use multilayers of high-quality Ruddlesden-Popper perovskites in their 2D crystalline form, benefiting from their quantum-well excitonic resonances and the strong Fabry-Pérot cavity modes resulting from the total internal reflection at their smooth surfaces.
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- - We successfully created high-quality, pinhole-free 2D Ruddlesden-Popper Perovskite (RPP) BAPbI layers with large crystalline grains, which are ideal for optoelectronic devices like photodetectors, showing fast response times.
- - We found that treating the layers with oxygen plasma before hot casting is essential for achieving these close-packed polycrystalline layers at lower temperatures, and the crystal growth is mainly influenced by the rate of solvent evaporation and the precursor concentration.
- - The resulting RPP-based photodetector demonstrated excellent performance with rapid photoresponse times and high responsivity, while offering a simple, cost-effective fabrication process suitable for large-scale production, making it a