Synthesis of a Novel Amphiphilic Tetraphenylethylene Derivative With Aggregation‐Induced Emission Characteristics for Enhanced Aged Latent Fingerprint Detection

ABSTRACT In the current investigation, we have devised a novel organic fluorescent compound named (2‐(4‐((4‐vinylbenzyl)oxy)phenyl)ethene‐1,1,2‐triyl)tribenzene (TPE‐3OH‐FLA), which is built upon the framework of tetraphenylethylene luminophores. This molecule emits blue‐green fluorescence upon exposure to 365‐nm laser excitation, highlighting its versatile optical attributes. Furthermore, the TPE‐3OH‐FLA molecule exhibits the aggregation‐induced emission (AIE) effect, confirmed through TD‐DFT calculations. The successful synthesis of the TPE‐3OH‐FLA molecule represents a significant breakthrough in the realm of fluorescent fingerprint detection technology utilizing the soaking method. It offers a reliable and effective tool that has the potential to revolutionize forensic investigation protocols. The unique characteristics of this molecule suggest a promising role in enhancing the visibility and accuracy of latent print identification in forensic science.