Materials development and mid-infrared emission properties of Dy-doped TlPb2Br5 and CsPbCl3
Materials development and mid-infrared emission properties of Dy-doped TlPb2Br5 and CsPbCl3
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DOI：
10.1117/12.2542697
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发表时间：
2020-03
期刊：
影响因子：
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通讯作者：
U. Hömmerich;Daniel Hart;A. Kabir;C. Yang;S. Trivedi
中科院分区：
文献类型：
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作者：
U. Hömmerich;Daniel Hart;A. Kabir;C. Yang;S. Trivedi
我们报告了用于光子应用的三元卤化铅化合物TlPb 2Br 5和CsPbCl 3中掺杂Dy 3+的材料开发和红外（IR）光学光谱。采用熔融生长法制备了Dy掺杂的三元卤化铅。在1.35 μm（6 H15/2→ 6 H9/2+ 6 F11/2）光抽运下，室温下观察到~2.9 μm（6 H13/2→ 6 H15/2）、~4.3 μm（6 H11/2→ 6 H13/2）和~5.4 μm（6 H9/2 + 6 F11/2 → 6 H15/2）的宽中红外发射。与Dy：TlPb 2Br 5相比，Dy：CsPbCl 3的中红外发射明显较弱，表明存在非辐射损失。对Dy：TlPb 2Br 5进行了温度依赖性寿命研究和Judd-Ofelt分析。
We report on the materials development and infrared (IR) optical spectroscopy of Dy3+-doped into the ternary lead halides compounds TlPb2Br5 and CsPbCl3 for photonic applications. The investigated Dy-doped ternary lead halides were synthesized from purified starting materials followed by melt-growth using vertical Bridgman technique. Under optical pumping at 1.35 μm (6H15/2→6H 9/2+6F11/2), broad mid-IR emissions in the ~2.9 μm (6H13/2→6H15/2), ~4.3 μm (6H11/2→6H 13/2), and ~5.4 μm (6H9/2 +6F11/2 →6H15/2) regions were observed at room-temperature. Compared to Dy: TlPb2Br5, the mid-IR emission from Dy: CsPbCl3 was significantly weaker suggesting the existence of non-radiative losses. Temperature dependent lifetime studies and a Judd-Ofelt analysis were performed for Dy: TlPb2Br5.