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+An aggregation‐induced emission‐based, luminescent Zinc (II) coordination complex of bisimidazolyl phenol (Zn‐BDI) is prepared. The thermal stability of the complex Zn‐BDI is attributed to the twisted conformation, and the rigid molecular structure of the ligand BDI resulted from the incorporation of the Zn‐metal atom. The maximum emission of the Zn‐BDI appears to be at 475 nm and emits strong cyan fluorescence. The light emission performance of the prepared zinc complex in organic light‐emitting diodes (OLEDs) indicates fairly good electroluminescence properties (max. brightness 13500 cd/m2, max. EQE=3.8 %). Moreover, these Zn‐BDI can emit strong cyan‐blue luminescence with a high quantum efficiency (0.83), and hence, latent fingerprint (LFPs) investigation exhibited permanent, immutable, and unique pores that are distributed on the ridges. Collectively, the prepared Zn complex offers a new avenue for the OLED and LFP applications.

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