首页|A dye-loaded nonlinear metal-organic framework as self-calibrated optical thermometer
A dye-loaded nonlinear metal-organic framework as self-calibrated optical thermometer
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NSTL
Facile and accurate temperature measurement is crucial in daily life, industrial applications, and scientific research. Here, we present a new strategy for physiolpgical temperature sensing based on dual-emission from second harmonic generation (SHG) signal and two-photon luminescence in a dye-loaded nonlinear metal-organic framework (MOF) composite FIR-8(∪)DMASM (DMASM = 4-[p-(dimethylamino)styryl]-1-methylpyridinium). Powder X-ray diffraction (PXRD), thermal gravimetric analysis (TGA), infrared absorption spectrum, single-photon luminescence, and the quantum yield indicate that encapsulation not only provides a two-photon luminescence center, but also improves the stability and quantum efficiency of dyes. Temperature-dependent spectroscopy shows that FIR-8(∪)DMASM has excellent sensory performance in the physiological temperature region (20-60 °C) with high relative sensitivity of 1.36-2.98% °C~(-1). With good water stability and excellent biocompatibility, FIR-8(∪)DMASM can be potentially applied in biological temperature sensing.
NSTL
