Abstract In this paper, the optical properties of CsVO3 were studied, and the possibility of using CsVO3 as phosphor for white LED was verified. CsVO3 phosphor was synthesized by solid-phase method, and its phase, surface morphology and optical properties were evaluated. Our results show that the absorption band of CsVO3 in the excitation spectrum is 310–390 nm, and the peak value is 368 nm. In the emission spectrum, there is a broad band emission between 400 nm and 700 nm, and the peak value is 492 nm. CIE coordinate value is (0.3591, 0.4131), falling in the yellow green white light range. The band gap of CsVO3 calculated by PBEsol is 3.065eV, and that of CsVO3 calculated by PBE is 3.037eV. These results show that CsVO3 phosphor can be used as a new type of phosphor for white LED, and it is attracting more and more attention.

中文翻译：

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CsVO3的制备、光学性质及第一性原理计算

摘要 本文研究了CsVO3 的光学特性，验证了CsVO3 作为白光LED 荧光粉的可能性。采用固相法合成了CsVO3荧光粉，并对其物相、表面形貌和光学性能进行了评价。我们的结果表明，CsVO3 在激发光谱中的吸收带为 310-390 nm，峰值为 368 nm。在发射光谱中，在400～700nm之间有宽带发射，峰值为492nm。CIE坐标值为(0.3591, 0.4131)，落在黄绿白光范围内。PBEsol计算的CsVO3带隙为3.065eV，PBE计算的CsVO3带隙为3.037eV。这些结果表明CsVO3荧光粉可以作为一种新型的白光LED荧光粉，受到越来越多的关注。