Eu3+激活稀土硼酸盐PDP红色荧光材料物质结构与发光机理

Many famous manufacturers have declared to abandon their production of plasma display panels (PDP) in international market place. However, more and more investments in PDP production started to construct in China mainland, which makes China mainland become both global manufacturing base and global technical center of PDP. The three-dimensional TV and Smart TV brought PDP back to life, but also face the challenge from LCD which adopts LED as backlights and OLED. In this situation, whether the PDP manufacturers of china mainland can compete over in future flat panel display market has attracted much attention from worldwide eyes. Besides a reasonable distribution of complete industrial chain to ensure low-cost products to consumers, PDP industry must provide consumers with excellent product quality and technical support so as to win over others in the fierce competition flat panels market. Presently, the main shortcomings face to PDP is low luminous efficiency, low brightness and high energy consumption as super larger screen (such as 103 inch). The luminous efficiency of PDP is above all determined by phosphors and also depends on the discharge of noble gas and driving circuit. As for the research on phosphors, the deficiency in the knowledge about the mechanism of energy transfer during the luminescence under vacuum ultraviolet excitation has constrained the development of new phosphors for PDP. The progress made in the understanding of crystal structure and luminescence mechanisms under VUV excitation are systematically summarized in this paper by taking red phosphors as an example. A theoretical simulation result carried with CASTEP in our group was given. The present theoretical and experimental knowledge are still inadequate to explain the properties of phosphors reasonably.