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Thermal quenching (TQ) is still a critical challenge for lanthanide (Ln 3+ )-doped luminescent materials. Herein, we report the novel negative thermal expansion nonhygroscopic phosphor ZrSc(WO 4 ) 2 PO 4 :Yb 3+ /Er 3+ . Upon excitation with a 980 nm laser, a simultaneous thermal enhancement is realized on upconversion (UC) and downshifting (DS) emissions from room temperature to 573 K. In situ temperature-dependent X-ray diffraction and photoluminescence dynamics are used to reveal the luminescence mechanism in detail. The coexistence of the high energy transfer efficiency and the promoted radiative transition probability can be responsible for the thermally enhanced luminescence. On the basis of the luminescence intensity ratio of thermally coupled energy levels 2 H 11/2 and 4 S 3/2 at different temperatures, the relative and absolute sensitivities of the targeted samples reach 1.10% K −1 and 1.21% K −1 , respectively, and the low-temperature uncertainty is approximately 0.1−0.4 K on the whole temperature with a high repeatability (98%). Our findings highlight a general approach for designing a hygro-stable, thermostable, and highly efficient Ln 3+ -doped phosphor with UC and DS luminescence.

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This paper studies the financial risks of listed companies in China's pharmaceutical industry by means of qualitative research and quantitative research. Based on the financial data of Guizhou bailing pharmaceutical co, ltd. in 2015 and 2016. The empirical analysis shows that: Based on the fuzzy comprehensive evaluation method, the financial situation analysis of the listed companies in the pharmaceutical industry is feasible in the first year and the year of T. The financial status of listed companies in the pharmaceutical industry can be used to predict the financial risks of the pharmaceutical industry listed company T 1 and 2 years.