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Eu3+ Single-Doped Phosphor with Antithermal Quenching Behavior and Multicolor-Tunable Properties for Luminescence Thermometry
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-01-04 , DOI: 10.1021/acs.inorgchem.2c03699 Xinyang Shi 1 , Yu Xue 1 , Qinan Mao 1 , Lang Pei 1 , Xinyue Li 1 , Meijiao Liu 2 , Qi Zhang 1 , Jiasong Zhong 1
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2023-01-04 , DOI: 10.1021/acs.inorgchem.2c03699 Xinyang Shi 1 , Yu Xue 1 , Qinan Mao 1 , Lang Pei 1 , Xinyue Li 1 , Meijiao Liu 2 , Qi Zhang 1 , Jiasong Zhong 1
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To date, non-contact luminescence thermometry methods based on fluorescence intensity ratio (FIR) technology have been studied extensively. However, designing phosphors with high relative sensitivity (Sr) has become a research hotspot. In this work, Eu3+ single-doped Ca2Sb2O7:Eu3+ phosphors with a high Sr value for dual-emitting-center luminescence thermometry are developed and proposed. The anti-thermal quenching behavior of Eu3+ originating from the energy transfer (ET) of host → Eu3+ is found and proved in the designed phosphors. Interestingly, adjustable color emission from blue to orange can be achieved. Surprisingly, the degree of the anti-thermal quenching behavior of Eu3+ gradually reduces from 240 to 127% as the Eu3+ doping content increases from 0.005 to 0.05 mol, attributed to most Eu3+ being located in the low symmetrical [Ca1O8] dodecahedral site. According to the differentiable responses of the host and Eu3+ to temperature, the maximal Sr value reaches 3.369% K–1 (383 K). Moreover, the ambient temperature can be intuitively predicted by observing the emitting color. Owing to the excellent performance in optical thermometry, color-tunable properties, and outstanding acid and alkali resistance for polydimethylsiloxane (PDMS) films, the developed Eu3+ single-doped Ca2Sb2O7:Eu3+ phosphors are expected to be prospective candidates in luminescence thermometers and LED devices in various conditions.
中文翻译：
Eu3+ 单掺杂荧光粉具有抗热猝灭行为和用于发光测温的多色可调特性
迄今为止，基于荧光强度比（FIR）技术的非接触式发光测温方法已得到广泛研究。然而，设计具有高相对灵敏度（S r）的荧光粉已成为研究热点。在这项工作中，开发并提出了用于双发射中心发光测温的具有高S r值的Eu 3+单掺杂Ca 2 Sb 2 O 7 :Eu 3+荧光粉。Eu 3+的抗热猝灭行为源于宿主→Eu 3+的能量转移（ET）在设计的荧光粉中发现并证明了这一点。有趣的是，可以实现从蓝色到橙色的可调颜色发射。令人惊讶的是，随着 Eu 3+掺杂含量从 0.005 增加到 0.05 mol， Eu 3+的抗热猝灭行为的程度从 240% 逐渐降低到 127%，这归因于大多数 Eu 3+位于低对称 [Ca1O 8 ] 十二面体位点。根据宿主和Eu 3+对温度的微分反应，最大S r值达到3.369% K –1（383K）。此外，可以通过观察发光颜色直观地预测环境温度。由于聚二甲基硅氧烷（PDMS）薄膜具有优异的光学测温性能、颜色可调性和出色的耐酸碱性能，开发的Eu 3+单掺杂Ca 2 Sb 2 O 7 :Eu 3+荧光粉有望成为各种条件下发光温度计和 LED 设备的潜在候选人。
更新日期：2023-01-04
中文翻译：
Eu3+ 单掺杂荧光粉具有抗热猝灭行为和用于发光测温的多色可调特性
迄今为止，基于荧光强度比（FIR）技术的非接触式发光测温方法已得到广泛研究。然而，设计具有高相对灵敏度（S r）的荧光粉已成为研究热点。在这项工作中，开发并提出了用于双发射中心发光测温的具有高S r值的Eu 3+单掺杂Ca 2 Sb 2 O 7 :Eu 3+荧光粉。Eu 3+的抗热猝灭行为源于宿主→Eu 3+的能量转移（ET）在设计的荧光粉中发现并证明了这一点。有趣的是，可以实现从蓝色到橙色的可调颜色发射。令人惊讶的是，随着 Eu 3+掺杂含量从 0.005 增加到 0.05 mol， Eu 3+的抗热猝灭行为的程度从 240% 逐渐降低到 127%，这归因于大多数 Eu 3+位于低对称 [Ca1O 8 ] 十二面体位点。根据宿主和Eu 3+对温度的微分反应，最大S r值达到3.369% K –1（383K）。此外，可以通过观察发光颜色直观地预测环境温度。由于聚二甲基硅氧烷（PDMS）薄膜具有优异的光学测温性能、颜色可调性和出色的耐酸碱性能，开发的Eu 3+单掺杂Ca 2 Sb 2 O 7 :Eu 3+荧光粉有望成为各种条件下发光温度计和 LED 设备的潜在候选人。
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