Compared with the various costly sensor techniques, sensing different targets by the spectroscopic method have considered due to some advantages, including high productivity, sensitivity, and selectivity. This review article presents an overview of the many works on the polyoxometalates (POMs) application as spectroscopic sensor in recent years. Generally, POMs have extended as a category of encouraging advanced material applicants not only numerous building blocks, but also suitable oxidoreduction abilities and distinguished proton-coupled electron transfer susceptibilities. Therefore, this review considers the hopeful anticipations of POMs in sensing applications. The three structures of classic-type, organic–inorganic hybrids, and composite-based POMs have been discussed in details. POMs-based sensors have been evaluated via spectroscopic (fluorescence and colorimetric) technique. The most critical challenge faced by classic POM sensors, along with some of the advantages of organic–inorganic hybrid and composite-based POMs, are also briefly explained in this paper.

与各种成本高昂的传感器技术相比，光谱法传感不同目标具有高生产率、灵敏度和选择性等优点。这篇综述文章概述了近年来多金属氧酸盐 (POM) 作为光谱传感器的应用。一般来说，POMs 作为一种鼓励先进材料申请人的类别，不仅有大量的构件，而且还具有合适的氧化还原能力和卓越的质子耦合电子转移敏感性。因此，本综述考虑了 POM 在传感应用中的希望。已经详细讨论了经典型、有机-无机杂化物和复合型 POM 的三种结构。基于 POM 的传感器已通过光谱（荧光和比色）技术进行了评估。本文还简要解释了经典 POM 传感器面临的最关键挑战，以及有机-无机混合和复合 POM 的一些优点。