This work concerns the synthesis and optical characterization of a novel Mn 4+ activated luminescent material with chemical composition of [C(NH 2 ) 3 ] 2 GeF 6 :Mn 4+ . This is the first report of a Mn 4+ activated fluoride comprising organic moieties. X-ray diffraction, IR transmission, differential thermal analysis/thermogravimetry and inductively coupled plasma-mass spectrometry analyses were performed to investigate the properties of the phosphor. It turns out that the material is an efficient emitter at low temperature (3 K), but the luminescence is quenched at elevated temperature. This is a rare property for Mn 4+ activated fluorides and the reason for the low thermal quenching temperature is investigated. The emergence of a second zero phonon line is observed in emission spectra at temperatures higher than 10 K and a relation to spin–orbit coupling is shown. Thermal population of the higher spin–...

中文翻译：

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六氟锗酸根与复杂有机阳离子胍[C（NH 2）3] 2 GeF 6：Mn 4+的发光。

这项工作涉及化学组成为[C（NH 2）3] 2 GeF 6：Mn 4+的新型Mn 4+活化发光材料的合成和光学表征。这是包含有机部分的Mn 4+活化氟化物的首次报道。进行了X射线衍射，红外透射，差热分析/热重分析和电感耦合等离子体质谱分析，以研究荧光粉的性能。事实证明，该材料在低温（3 K）下是有效的发射体，但发光在高温下被淬灭。对于Mn 4+活化的氟化物而言，这是一种罕见的性能，并且研究了热淬火温度低的原因。在高于10 K的温度下的发射光谱中观察到第二条零声子线的出现，并显示了与自旋轨道耦合的关系。较高自旋的热填充...