Abstract In recent times, the crime rate is increasing in the society, and the maintaining of criminal records is becoming essential by locating and tracking each case through latent fingerprint identification along with the imperative of finding the intensity and wavelength via Aggregation Induced Emission (AIE). To meet these demands, we have designed a novel AIE based electron withdrawing moiety such as 2-(4-fluorophenyl)-3H-benzocoumarin. This Coumarin Fluorescent Tag (CFT) was synthesized with the aid of ultra-sonic waves. Fluorescence properties of the CFT were characterized by photoluminescence (PL). The Fluoro functional groups of CFT produce pale-blue emission in solid as well as the liquid state. An in-depth examination of latent fingerprints (LFPs) showed unchangeable and everlasting patterns due to the strong adsorption of CFT on the ridges of the finger under visible and 365 nm UV light. This imaging of such strong ridges becomes a crucial element in forensic applications. In addition to check the AIE properties, the newly designed CFT was investigated using PL Instrument and UV chamber.

中文翻译：

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使用基于高灵敏度 AIE 的香豆素荧光衍生物开发和检测潜指纹的 II 级和 III 级特征

摘要 近年来，社会犯罪率不断上升，通过潜在指纹识别定位和跟踪每个案件以及通过聚合诱导发射（AIE）寻找强度和波长的必要性，保持犯罪记录变得至关重要。 . 为了满足这些需求，我们设计了一种基于 AIE 的新型吸电子部分，例如 2-(4-氟苯基)-3H-苯香豆素。这种香豆素荧光标签 (CFT) 是在超声波的帮助下合成的。CFT 的荧光特性由光致发光 (PL) 表征。CFT 的氟官能团在固态和液态下都会产生淡蓝色的发射光。由于 CFT 在可见光和 365 nm 紫外光下强烈吸附在手指脊上，因此对潜在指纹 (LFP) 的深入检查显示出不可改变和永久的图案。这种强脊的成像成为法医应用中的关键要素。除了检查 AIE 属性外，还使用 ​​PL 仪器和 UV 室研究了新设计的 CFT。