稀土上转换发光材料的合成与应用研究进展

Advances in Synthesis and Application of Rare Earth up-conversion luminescent Materials

稀土上转换发光材料是一种光学性能出众的Anti-stockes发光材料,广泛应用于生物医学、红外探测等领域。介绍了稀土上转换发光材料的几种常用的制备方法,包括共沉淀法、微乳液法、溶胶-凝胶法、水热(溶剂热)法、热分解法、超声波法和静电纺丝法,并对稀土上转换发光材料在海关行李监管这一新兴领域的应用进行了展望,为可疑行李监管提供了一种隐形、无感、可识别的技术,将上转换发光材料应用于海关口岸监管活动,提高对疑似管制行李的识别和追踪核查,减少误报和跟丢的可能性,有效地提高旅检的通关效率。

Rare earth up-conversion luminescent materials are anti-stockes luminescent materials with excellent optical properties,which are widely used in biomedical,infrared detection and other fields.This paper introduces several common preparation methods of rare earth up-conversion luminescent materials,including coprecipitation,microemulsion,sol-gel,hydrothermal(solvothermal),thermal decomposition,ultrasonic and electrospinning.The application of rare earth up-conversion luminescent materials in customs baggage supervision is prospected.Through the research of this subject,a kind of invisible,non-sensitive and identifi able technology is provided for the supervision of suspicious luggage.The up-conversion light-emitting materials are applied to the supervision activities of customs ports,which can improve the identification and tracking verification of suspected controlled luggage,reduce the possibility of false alarm and losing,and eff ectively improve the effi ciency of customs clearance.