Heavy-metal-free colloidal quantum wells as efficient and spectrally narrow emitters for displays, biomarkers and single photon sources

不含重金属的胶体量子阱作为显示器、生物标记物和单光子源的高效窄光谱发射器

• 批准号: 2887761
• 金额: --
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2887761
• 关键词: Heavy; metal; free; colloidal; quantum

Colloidal nanostructures have attracted increasing interest due to the simplicity of the wet-chemistry colloidal synthesis compared to epitaxially grown nanostructures fabricated on a substrate. Owing to the wide tunability by control of shape, size and chemical composition, colloidal nanostructures are relevant for applications, spanning from bio-imaging markers to solar energy harvesting materials, lighting, display, and single photon sources for quantum communication.Colloidal quantum wells (CQW), quasi two-dimensional nanostructures with atomically precise thickness, have narrow absorption and emission spectra, a key property for applications. However, most of the research was focussed on Cadmium (Cd) based CQWs, which are not sustainable in consumer opto-electronic devices due to their carcinogenic toxicity.

胶体纳米结构已经吸引了越来越多的兴趣，由于湿化学胶体合成的简单性相比，外延生长的纳米结构制造在衬底上。胶体量子威尔斯（Colloidal quantum wells，CQW）是一种准二维纳米结构，具有原子级精确的厚度，具有窄的吸收和发射光谱，这是胶体纳米结构的一个关键特性。然而，大多数研究都集中在基于镉（Cd）的CQW上，由于其致癌毒性，CQW在消费者光电设备中是不可持续的。