随着荧光比技术(FIR)和荧光寿命(FL)策略的出现,光学传感器技术经历了变革性的发展。革命性的精度,性能,和可靠性。本研究深入研究了掺杂Ho3/Nd3的Ba2GdV3O11荧光粉的合成,Er3+,Yb3+,采用溶胶-凝胶方法进行上转换材料制造。对结构进行彻底调查,形态学,并对所合成的荧光粉进行了光学性能分析。980nm的激发揭示了绿色和红色光谱的上转换(UC)发射。观察到的Ho3发射带的强度,Nd3+,和Er3+表现出对温度波动的显著敏感性。温度传感依赖于4S3/2和2H11/2上转换发射带,除了4S3/2的排放寿命。获得增强的热灵敏度值,使用FIR策略达到1.03%K-1和1.07%K-1,对于Ho3+/Er3+/Yb3+和Nd3+/Er3+/Yb3+三掺杂Ba2GdV3O11荧光粉,采用FL策略,最高可达0.146%K-1和0.47%K-1,分别。此外,所研究的荧光粉在检测微小的温度变化(0.3K)方面表现出卓越的精度,将它们定位为有希望的候选人进行精确的温度传感。这项研究开创了推进光学测温技术的创新方法,为科学和工业应用提供有希望的前景依赖于精确的光学温度传感。
Optical sensor technology has undergone a transformative evolution with the advent of fluorescence ratio techniques (FIR) and fluorescence lifetime (FL) strategies, revolutionizing precision, performance, and reliability. This study delves into the synthesis of Ba2GdV3O11 phosphors doped with Ho3+/Nd3+, Er3+, and Yb3+, employing the sol-gel method for upconverting material fabrication. A thorough investigation into the structural, morphological, and optical properties of the synthesized phosphors is conducted. Excitation at 980 nm unveils upconversion (UC) emissions across green and red spectra. The intensities of the observed emission bands for Ho3+, Nd3+, and Er3+ demonstrate significant sensitivity to fluctuations in temperature. Temperature sensing relies on the 4S3/2 and 2H11/2 upconversion emissions bands, in addition to the emission lifetimes at 4S3/2. Enhanced thermal sensitivity values are attained, reaching up to 1.03 % K-1 and 1.07 % K-1 using the FIR strategy, and up to 0.146 % K-1 and 0.47 % K-1 with the FL strategy for Ho3+/Er3+/Yb3+ and Nd3+/Er3+/Yb3+ tri-doped Ba2GdV3O11 phosphors, respectively. Furthermore, the studied phosphors exhibit remarkable precision in detecting minute temperature changes (0.3 K), positioning them as promising candidates for precise temperature sensing. This study pioneers innovative methodologies to advance optical thermometry techniques, offering promising prospects for scientific and industrial applications reliant on precise optical temperature sensing.