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