Ап-конверсионная люминесценция твердых растворов CaF-=SUB=-2-=/SUB=--SrF-=SUB=-2-=/SUB=--HoF-=SUB=-3-=/SUB=- при возбуждении на уровень -=SUP=-5-=/SUP=-I-=SUB=-7-=/SUB=- ионов Ho-=SUP=-3+-=/SUP=-

Оптика и спектроскопия Pub Date : 2023-01-01 DOI:10.21883/os.2023.03.55384.4085-22

М.К. Бубнов, С.А. Букарев, Сергей Викторович Гущин, Василий Андреевич Конюшкин, Сергей Валентинович Кузнецов, Александр Александрович Ляпин, A.H. Накладов, П. А. Рябочкина, В. В. Воронов, П. П. Федоров

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Abstract

Up-conversion luminescence spectra of CaF2-SrF2-HoF3 single crystals were investigated upon excitation by laser radiation with a wavelength of 1940 nm to the 5I7 level of Ho3+ ions. The CaF2-SrF2-HoF3 single crystals were grown by the vertical directional crystallization method. For these excitation conditions, quantitative characteristics of the up-conversion luminescence of Ho3+ ions were determined: energy yield, chromaticity coordinates, and correlated color temperatures. The possibility of increasing the efficiency of solar cells due to the conversion of infrared radiation in CaF2-SrF2-HoF3 crystals was considered.

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CaF- 2-= -2-= - SUB -2-= -2-= -2-= -3-= - SUB -3-= -3-= -3-= - SUP=- 7- SUP=- 7

用波长为1940 nm的激光激发至5I7能级的Ho3+离子，研究了CaF2-SrF2-HoF3单晶的上转换发光光谱。采用垂直定向结晶法生长CaF2-SrF2-HoF3单晶。在这些激发条件下，确定了Ho3+离子上转换发光的定量特征:能产率、色度坐标和相关色温。考虑了利用红外辐射在CaF2-SrF2-HoF3晶体中的转换来提高太阳能电池效率的可能性。

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Оптика и спектроскопия

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