HSINCHU, Taiwan, June 14 (Bernama-BUSINESS WIRE) — Although perovskite quantum dots (PQDs) are rising stars among quantum emitters, their inherent instability has limited their development. Now, Professor Hao-Wu Lin of the Department of Materials Science and Engineering, Professor Chih-Sung, Chuu of the Department of Physics, and Professor Richard D. Schaller of the Department of Chemistry at Northwestern University have jointly developed PQDs with high stability and self-healing ability by applying a simple and cost-effective procedure: spray synthesis. Their PQDs display unprecedented single-photon brightness; indeed, they have broken the world-record for the brightest room-temperature quantum emitter material—a major breakthrough for quantum information processing.
Lin says that, in contrast to other quantum emitters, PQDs can realize single-photon emission at room temperature with excellent optical properties, including high quantum yield and high single-photon purity, making them ideal for future quantum computing and quantum communications. In recent years, PQDs have attracted considerable attention from international researchers, who have been hoping to extend the stability of the materials to beyond only a few minutes under excitation.
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