传感技术学报2018，Vol.31Issue(4)：529-533,5.DOI:10.3969/j.issn.1004-1699.2018.04.007
罗丹明6G/PMMA复合材料荧光的温度传感特性
Fluorescence Temperature Sensing Properties of Rhodamine 6G/PMMA Composites
摘要
Abstract
Rhodamine 6G(R6G/PMMA)composite showed excellent fluorescence temperature sensing properties in a temperature range near room temperature. In a range of 20~60℃,fluorescence of various composites was charac-terized with integrated intensity It,peak wavelength λpand a so-called band barycenter characteristic. Thermal quenching was found for all the tested composite samples. Linear dependence on temperature of the intensity was observed. For the sample with a ratio of R6G:PMMA=1:5 by weight,the experimental setup had another sensing function λB=581.9+0.065T when the emission band barycenter was used as the temperature sensing signal. This function was fitted with a confidence coefficient(R2)of 0.98,and the resolution of the experimental system was determined to be 1℃,the relative sensitivity referred to the tested datum at 30℃ was 3.3%/℃. When the weight ratio of R6G/PMMA varied,the sensitivity remained almost constant. Compared with the barycenter signal,peak wavelength could almost not offer a sensing function. Mechanism of the temperature dependence of the fluorescence of R6G/PMMA composite was briefly discussed,and sensing applications of the setup were proposed.关键词
温度传感/荧光/频移/罗丹明6GKey words
temperature sensing/fluorescence/band shift/rhodamine 6G分类
信息技术与安全科学引用本文复制引用
赵小兵,张巍巍,吴潇杰,徐如辉,秦朝菲,王闽..罗丹明6G/PMMA复合材料荧光的温度传感特性[J].传感技术学报,2018,31(4):529-533,5.基金项目
国家自然科学基金项目(61167007,61665008) （61167007,61665008）
航空科学基金项目(2016ZD56006) （2016ZD56006）
江西省青年科学家培养计划项目(20153BCB23037) （20153BCB23037）
江西省研究生创新专项资金项目(YC2017-S335) （YC2017-S335）
