First DC-Driven Polariton Laser Diode Without Epitaxial Substrate Built

Scientists have fabricated a polariton laser diode by integrating a solution-grown perovskite microplate with chemically inert single-walled carbon nanotube electrodes inside an optical microcavity. The device achieves polariton lasing under a constant direct current at 8 K without any epitaxial substrate. The result marks a significant step toward practical, low-threshold optoelectronic light sources.

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More on this topic

🔬 Science Blue Perovskite LEDs Hit Record 22% Efficiency via Hydrogen-Bonding Networks Nature · 24d ago 💻 Technology Chinese firm LONGi develops solar cell with record 35.5% efficiency Engadget · 7d ago 🔬 Science Perovskite–organic tandem solar cells gain stability with photo-transformable additive Nature · 12d ago