水分散性近红外发射CuInZnS/ZnSe/ZnS量子点的界面工程
Interface Engineering of Water-Dispersible Near-Infrared-Emitting CuInZnS/ZnSe/ZnS Quantum Dots.
作者信息
Mann Patrick, Fairclough Simon M, Bourke Struan, Burkitt Gray Mary, Urbano Laura, Morgan David J, Dailey Lea Ann, Thanou Maya, Long Nicholas J, Green Mark A
机构信息
Department of Physics, King's College London, The Strand, London WC2R 2LS, U.K.
Centre for Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, Hatfield AL10 9AB, U.K.
出版信息
Cryst Growth Des. 2024 Jul 18;24(15):6275-6283. doi: 10.1021/acs.cgd.4c00528. eCollection 2024 Aug 7.
We report the synthesis of near-infrared (IR)-emitting core/shell/shell quantum dots of CuInZnS/ZnSe/ZnS and their phase transfer to water. The intermediate ZnSe shell was added to inhibit the migration of ions from the standard ZnS shell into the emitting core, which often leads to a blue shift in the emission profile. By engineering the interface between the core and terminal shell layer, the optical properties can be controlled, and emission was maintained in the near-IR region, making the materials attractive for biological applications. In addition, the hydrodynamic diameter of the particle was controlled using amphiphilic polymers.
我们报道了CuInZnS/ZnSe/ZnS近红外（IR）发射核/壳/壳量子点的合成及其向水相的转移。添加中间的ZnSe壳层以抑制离子从标准ZnS壳层迁移到发光核中，这通常会导致发射光谱发生蓝移。通过设计核与终端壳层之间的界面，可以控制光学性质，并使发射保持在近红外区域，这使得这些材料在生物应用中具有吸引力。此外，使用两亲性聚合物控制了粒子的流体动力学直径。
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