Imide-functionalized　polycyclic　aromatic　hydrocarbons　(PAHs)　endow　fascinating　optoelectronic　properties,　rendering　them　suitable　for　many　applications.　Developing　these　new　kinds　of　functional　materials　is　interesting　and　challenging.　Dinaphtho[1,2-a:1′,2′-h]anthracene　(DNphA),　a　non-planar　S-shaped　double　helical　helicene　within　the　PAH　class,　has　received　relatively　little　research.　In　this　contribution,　a　series　of　solution-processable　DNphA　diimide　derivative　dyes　(M1∼M5)　were　designed　and　synthesized.　The　density　functional　theory　calculation,　photophysical　and　electrochemical　properties　of　the　new　fluorescent　dyes　have　been　investigated.　Notably,　M5　was　used　as　a　fluorescent　developer　for　latent　fingerprint　visualization,　where　fingerprints　on　different　substrates　displayed　clear　yellow-green　fluorescence.　This　research　provides　insights　into　the　efficient　design　strategy　of　the　imide　functionalization　of　DNphA　and　the　synthesis　and　application　of　DNphA　diimide-based　functional　dyes.　©　2025　Elsevier　Ltd