Research Progress and Performance Improvement Strategies of Inorganic Fluorescent Thermo-sensitive Materials
With the rapid development of nanomaterials and biotechnology,the great progress of microelectronic circuits,microfluidic devices and nano-biomedicines brings about the increasing demands on fluorescent thermo-sensitive materials.Benefiting from the unique electronic energy levels of rare earth ions,rare earth/transition metal ions doped inorganic materials can achieve upconversion or down-shifting luminescence covering the ultra-violet,visible and near-infrared spectral ranges.With tunable fluorescence emission band,long fluorescence lifetime,non-light bleaching and highly thermal stability,they have been an important class of fluorescent ther-mo-sensitive materials and have made a series of important research advances in recent years.In this review,we firstly introduce classification of fluorescent thermometry,main parameters of thermometric performance and the research progress of fluorescent thermo-sensitive materials,including three types of thermo-sensitive materials based on fluorescence intensity ratio,fluorescence lifetime and other fluorescent performance parameters,and then elaborate the development strategies of fluorescent thermo-sensitive materials in three aspects:improving temperature sensing sensitivity,expanding temperature sensing range and improving temperature sensing accura-cy.Finally,the development trend of rare earth/transition metal ions doped inorganic fluorescent thermo-sensi-tive materials is summarized and prospected.
rare earth/transition metal ionsinorganic materialsfluorescent thermometrythermometric performance
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