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다국어 초록 (Multilingual Abstract)

Cyanine dyes exhibit excellent spectral properties, featuring broad wavelengthtunability and a high absorption coefficient. However, for optimal spectral properties, theyneed to retain a monomeric state, which alleviates aggregation. Herein, we present thesynthesis and properties of hexyl-substituted heptamethine indolenine cyanine dye containingvarious anions. The prepared cyanine dye exhibited strong absorption properties atapproximately 800 nm in the near-infrared region. Different counter anions, including bromide(Br), tetrafluoroborate (BF4), bis(trifluoromethanesulfonyl)imide (TFSI), and tetrakis(pentafluorophenyl)borate (TPFB), were incorporated to examine the effect on the aggregationaland resulting optical behaviors. Among these, the cyanine with TPFB anionsshowed a preferential monomeric peak in the UV-Vis spectra, indicating that the large TPFBanion acts as a potent aggregation inhibitor. Furthermore, the photothermal performanceof the cyanine dye with the TPFB anion was evaluated, exhibiting a suitable temperatureprofile, kinetic stability, and photothermal conversion efficiency. Furthermore, the cyanidesensing response was examined, with the prepared cyanine dyes exhibiting high bindingconstants and low detection limits.

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참고문헌 (Reference)

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