Heating-induced abnormal increase in Yb3+ excited state lifetime and its potential application in lifetime luminescence nanothermometry†,Inorganic Chemistry Frontiers

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Heating-induced abnormal increase in Yb3+ excited state lifetime and its potential application in lifetime luminescence nanothermometry†
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2018-11-13 00:00:00 , DOI: 10.1039/c8qi01052h
Zeliang Ji _{1,

2,

3,

4,

5} , Yao Cheng _{1,

2,

3,

4,

5} , Xiangshui Cui _{1,

2,

3,

4,

5} , Hang Lin _{1,

2,

3,

4,

5} , Ju Xu _{1,

2,

3,

4,

5} , Yuansheng Wang _{1,

2,

3,

4,

5}

Affiliation

The heating-induced unprecedented monotonous increase in Yb³⁺ excited state (²F_5/2) lifetime is found in Nd³⁺/Yb³⁺ codoped fluoride nanoparticles, which is proved to originate from the alleviation of energy migration-mediated surface quenching with elevated temperature. This unique phenomenon is evaluated for thermometric performance in terms of lifetime luminescence thermometry, and the maximum absolute/relative temperature sensitivity (S_a/S_r) reaches as high as 2.68 μs K⁻¹/1.59% K⁻¹ in the biological temperature region, indicating that the studied nanomaterial can offer great potential for lifetime luminescence thermometry in biological areas.

中文翻译：

加热引起的Yb ³⁺激发态寿命的异常增加及其在寿命发光纳米温度计中的潜在应用†

在Nd ³⁺ / Yb ³⁺共掺杂氟化物纳米粒子中发现了加热引起的Yb ³⁺激发态（² F _5/2）寿命的空前单调增加，这被证明是由能量迁移介导的表面淬火的减轻引起的。温度升高。根据寿命发光测温法对这种独特现象进行了测温性能评估，并且最大绝对/相对温度灵敏度（S _a / S _r）高达2.68μsK ^-1 /1.59% K ^-1 在生物温度范围内，表明所研究的纳米材料可以为生物领域的终身发光测温提供巨大潜力。

更新日期：2018-11-13

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