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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Er-doped antimonite Sb2O3 -PbO-ZnO/ZnS glasses studied by low-temperature photoluminescence spectroscopy
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Er-doped antimonite Sb2O3 -PbO-ZnO/ZnS glasses studied by low-temperature photoluminescence spectroscopy

机译：通过低温光致发光光谱研究的ER-掺杂的锑岩SB2O3 -PBO-ZnO / ZnS眼镜

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摘要

Antimonite glasses Sb2O3-PbO-ZnO/ZnS doped with ErCl3 within the range of 0.25-1.0 mol% were prepared and investigated by means of transmission, photoluminescence excitation and photoluminescence (PL) spectroscopy. In the studied glasses, the wavelength of 522 nm was found to be the most suitable for PL excitation of doped-in Er3+ ions in both the NIP and VIS spectral ranges. The PL spectra excited by wavelengths at 522 and/or 514.5 nm were measured at room and low temperatures (4 K) in the wavelength range of 400-1700 nm. Low-temperature PL spectroscopy allowed us to observe both the broad luminescence of the host glass centred at around 1050 nm and the narrow emissions caused by Er3+ ions. Special attention was given to the wavelengths where the broad-band luminescence of the host overlaps with 4f-4f transitions within Er3+ ions. A broad PL band of the host glass was observed together with a superimposed narrow emission band at 985 nm (I-4(11)/2 - I-4(15/2)) and a narrow absorption dip at about 970 nm ((4)(15/2)- I-4(11/2)). This absorption dip is a direct experimental evidence of energy transfer from the electronic structure of the host glass to 4f states of doped-in Er3+ ions. The strongest PL band at 1530 nm, representing transition from the lowest excited manifold I-4(13/2) to the ground state manifold I-4(15/2) was measured at 300 K and 4 K. The broadening at elevated temperature occurs primarily in the high energy part of the spectrum due to thermal excitation of electrons within the I-4(13/2) manifold. (C) 2018 Elsevier B.V. All rights reserved.
机译：通过透射，光致发光激发和光致发光（PL）光谱法制备掺杂有ERCL3的锑岩玻璃Sb2O3-PbO-ZnO / Zns在0.25-1.0mol％的范围内。在研究的眼镜中，发现522nm的波长是最适合于辊隙和Vis光谱范围内的掺杂IR3 +离子的PL激发。在522和/或514.5nm处激发的PL光谱在室温下测量，在400-1700nm的波长范围内测量低温（4 k）。低温PL光谱使我们能够观察到以1050nm左右的主体玻璃的广泛发光和由ER3 +离子引起的窄排放。对主体的宽带发光与ER3 +离子内的4F-4F过渡的宽带发光重叠的波长特别注意。在985nm（I-4（11）/ 2 - I-4（15/2））的叠加的窄发射带一起与叠加的窄发射带一起观察到宽PL带，并且在约970nm的窄吸收浸渍（（4）（15/2） - ＆ I-4（11/2））。这种吸收浸是一种直接实验证据，其能量转移从宿主玻璃的电子结构到掺杂ER3 +离子的4F态。在1530nm处的最强PL带，表示从最低激发歧管I-4（13/2）到接地状态歧管I-4（15/2）的过渡以300k和4k测量。在升高的温度下展大由于I-4（13/2）歧管内的电子热激发，主要发生在光谱的高能量部分中。 （c）2018年elestvier b.v.保留所有权利。

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