[16p-C41-1~12] New direction of perovskite solar cells

3:45 PM - 4:15 PM JST(6:45 AM - 7:15 AM UTC)English Presentation

[16p-C41-5] Two-Dimensional (2D) Tin Halide Perovskite Semiconductors for Lasing

〇Enzheng Shi¹ (1.Westlake University)

Keywords:

Two-dimensional halide perovskite,Quantum-well structure,Semiconductor lasers

Due to the highly tunable band structure, excellent optoelectronic properties, and low toxicity, tin halide perovskite semiconductors have attracted tremendous attention in the field of optoelectronics. In this talk, by employing the slow-cooling crystallization method and tuning the polarity of the growth solution, we obtained phase-pure 2D tin halide perovskite single crystals with tunable quantum-well thickness (n value) and hydrophobic π-conjugated organic ligands. Based on these lead-free perovskites, photogenerated carrier behaviors and lasing performance are systematically studied. Both high–n value (n > 1) and n = 1 tin perovskite thin flakes were successfully optically pumped to lase. Furthermore, the lasing from 2D tin perovskites could be maintained up to room temperature. Our findings highlight the tremendous potential of 2D tin perovskites as promising candidates for high-performance lasers.