胶体量子点材料由于具有激发光谱宽、半峰宽窄、颜色可调和可溶液加工等特点受到广泛关注。经过30多年的发展，量子点材料已实现了"绿色合成路线"和核壳结构设计的优化，部分量子点已可以做到工业化产品生产供应，并已开发出商业化应用的光致发光器件，该系列器件相继应用于LED（light-emitting diode，发光二极管）照明和显示领域。尤其是光致发光量子点器件在显示领域的商业应用，其将色域典型值从传统的72%提高到100%以上，显示色彩更加丰富多彩，吸引了越来越多的产业界厂商参与到量子点应用的阵营中。本文介绍了胶体量子点发光的基本原理、量子点制备及结构设计发展历程、量子点光致发光器件在LED照明和显示领域的应用情况，以及其广阔的应用前景和面临的挑战。
Colloidal quantum dots have attracted impressive attention in the last decades due to their various characteristics and advantages, such as broad excitation range, narrow FWHM (full width at the half maximum), adjustable color and the solution processability. After 30 years' development, the quantum dots materials have been successfully prepared in the "Green Synthesis" route, as well as design and optimization of core-shell structure. Some kinds of the quantum dots could already be produced and supplied in the form of industrial products, with the corresponding commercial applications for photoluminescence devices, including the LED lightening and display fields. In the current stage, more efforts are putting on the development and application of display products, where the photo-luminescent quantum dots device could help to improve the NTSC from 72% to above 100%. Most of the main TV producers have participated in the application of quantum dots and brought out the quantum dots display products, owing to their excellence in color performance and image quality. This paper presents the basic principles of quantum dots emission, development process of quantum dots preparation and structure design, current technology applications in the LED lightening and display fields, as well as their broad application prospects and challenge.
Contents
1 Introducation
2 Colloidal quantum dots
3 Development of colloidal quantum dots
3.1 Synthesis of quantum dots
3.2 Structure design of quantum dots
4 Photo-luminescence applications of colloidal quantum dots
4.1 LED lighting
4.2 LCD display
5 Conclusion
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