Research team develops self-healing quantum emitter with unprecedented brightness

Perovskite quantum dots are the rising stars of quantum emitters, but their inherent instability has hampered their development. Professor Hao-Wu Lin of the Department of Materials Science and Engineering, Associate Professor Chih-Sung Chuu of the Department of Physics, and Professor Richard Schaller of the Department of Chemistry at Northwestern University in the United States have jointly developed a perovskite quantum emitter with high stability and self-healing ability by a self-developed, simple, and economical procedure—spray-synthesis method. The unprecedented single-photon brightness of these quantum dots breaks the world-record, which makes them become the brightest room-temperature quantum emitter materials and constitute a major breakthrough in both quantum communication and quantum computing.

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