Time-Resolved Photoluminescence Studies of Transparent Hybrid Nanomaterials for Tunable Energy-Efficient Light Emitting Materials and Devices

用于可调谐节能发光材料和器件的透明杂化纳米材料的时间分辨光致发光研究

• 批准号: 440626-2013
• 负责人: Radovanovic, Pavle
• 金额: $ 8.55万
• 依托单位: University of Waterloo
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=507078
• 关键词: Time; Resolved; Photoluminescence; Studies; Transparent

Consumers and industry are seeking safe, durable, energy-efficient alternatives to traditional incandescent light bulbs. Although compact fluorescent lamps (CFLs) are comparatively efficient, they contain mercury, which requires special handling for disposal and in the case of bulb breakage. Light emitting diodes (LEDs) are a safer, more efficient and longer lasting alternative to CFLs. However, manufacturing efficient white LEDs is complicated and expensive. The fabrication of quasi-white LEDs is currently based on combining LEDs of different colours, or using a mixture of different phosphors (often containing expensive rare-earth elements). We designed and prepared low-cost high-efficiency organic-nanocrystal hybrid material whose illumination can tuned to any colour in the visible range, including pure white light, and which can be processed into light emitting structures and devices from liquid (i.e. solution) or solid (i.e. powder). The obtained hybrid nanomaterial acts as a single illumination entity, rather than a mixture, and provides a homogeneous and uniform white light emission.

消费者和工业界正在寻求安全、耐用、节能的传统白炽灯泡替代品。虽然紧凑型荧光灯（CFL）的效率相对较高，但它们含有汞，在处置和灯泡破裂时需要特殊处理。发光二极管（LED）是节能灯的一种更安全、更高效、更持久的替代品。然而，制造高效的白色LED是复杂且昂贵的。目前，准白光LED的制造是基于组合不同颜色的LED，或者使用不同磷光体的混合物（通常含有昂贵的稀土元素）。我们设计并制备了低成本、高效率的有机-无机杂化材料，其发光可以调谐到可见光范围内的任何颜色，包括纯白色光，并且可以从液体（即溶液）或固体（即粉末）加工成发光结构和器件。所获得的杂化纳米材料充当单一照明实体，而不是混合物，并且提供均匀且均匀的白色光发射。