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                    Tm^3+Yb^3+共摻氧氟硅酸鹽玻璃熱學性能和上轉換發光特性研究

                    來源:新型環保建材 發布時間:2020-07-01 點擊次數:

                    摘要:稀土摻雜氧氟硅酸鹽玻璃是一種優良的上轉換發光材料。系統研究了CdF 2含量對由35SiO215AlO1.5-(45×x)PbF2-xCdF2-0.1TmF3-1.5YbF3(x≤0,10,20,30)組成的氟硅酸鹽玻璃熱性能和光學性能的影響。結...

                        

                         稀土摻雜氧氟硅酸鹽玻璃是一種優良的上轉換發光材料。系統研究了CdF 2含量對由35SiO215AlO1.5-(45×x)PbF2-xCdF2-0.1TmF3-1.5YbF3(x≤0,10,20,30)組成的氟硅酸鹽玻璃熱性能和光學性能的影響。結果表明,部分取代PbF和CdF 2可以提高玻璃的熱穩定性,使紫外吸收邊向短波方向移動。隨著CdF 2含量的增加,Tm^3+藍光和紅光的上轉換發射緩慢增加,然后迅速增加,而近紅外上轉換發射先顯著增加后減慢。由于藍光和近紅外光的強度遠高于紅光,所以氟化氧玻璃更適合用于藍光和近紅外發光材料。最后討論了Tm^3+的上轉換發光機理。[

                         Abstract: TM ^ 3 +-TB ^ 3 + co-dopig fluorosilicate glasses suitable for upcoversio lasers have bee prepared. The effect of CdF 2 additio o its thermal stability ad upcoversio lumious properties has bee systematically studied. The experimetal results show that whe CdF 2 replaces PbF 2, the thermal stability of the glass icreases ad the UV cutoff edge moves slightly to the shortwave bad. With the icrease of CdF 2 cotet, the lumious itesity of blue light ad red upcoversio icreased slightly at first, ad the icreased rapidly. The upcoversio emissio itesity of ear ifrared (IR) icreased sigificatly at first ad the slightly. The itesity of blue light ad ear ifrared emissio is much stroger tha that of red glass, which idicates that fluorosilicate glass is more suitable for blue ad ear ifrared emissio tha red glass. The upcoversio mechaism of blue, red ad ear ifrared fluorescece was estimated ad evaluated. [author's Digest] /.

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