biostudies-literatureDu BChinese Academy of SciencesHainan UniversityState Key Laboratory of Supramolecular Structure and MaterialsNational Natural Science Foundation of China19432-19442https://www.ebi.ac.uk/biostudies/studies/S-EPMC11575629biostudies-literatureUnknown15(46)Unlike boron, nitrogen-containing multi-resonance emitters with thermally activated delayed fluorescence, here we report boron, sulfur (B, S)-based multi-resonance emitters with room-temperature phosphorescence (RTP) by inserting thiophene into a 5,9-dithia-13<i>b</i>-boranaphtho[3,2,1-<i>de</i>]anthracene skeleton that simultaneously realizes large singlet-triplet energy splitting and strong spin-orbital coupling, leading to efficient room-temperature phosphorescence in an amorphous state. Unlike most RTP emitters with ultraviolet excitation, the multi-resonance RTP emitters exhibit strong phosphorescence under daily-use blue/white LED lamps owing to their intense absorption in the visible-light region (400-486 nm). Meanwhile, such RTP behavior can be tuned by the number and fusing patterChemical scienceMulti-resonance emitters with room-temperature phosphorescence in amorphous state and excited by visible light.PMC11575629520732825212230991833306sklssm2024024XDB0520102KYQD(ZR)2217452261135541Du BTian HWang XWu YShao SWang LfalseMulti-resonance emitters with room-temperature phosphorescence in amorphous state and excited by visible light.Unlike boron, nitrogen-containing multi-resonance emitters with thermally activated delayed fluorescence, here we report boron, sulfur (B, S)-based multi-resonance emitters with room-temperature phosphorescence (RTP) by inserting thiophene into a 5,9-dithia-13<i>b</i>-boranaphtho[3,2,1-<i>de</i>]anthracene skeleton that simultaneously realizes large singlet-triplet energy splitting and strong spin-orbital coupling, leading to efficient room-temperature phosphorescence in an amorphous state. Unlike most RTP emitters with ultraviolet excitation, the multi-resonance RTP emitters exhibit strong phosphorescence under daily-use blue/white LED lamps owing to their intense absorption in the visible-light region (400-486 nm). Meanwhile, such RTP behavior can be tuned by the number and fusing patter2024-01-01T00:00:00Z2024 Nov2025-04-04T01:45:47.114Z2025-04-04T01:45:47.114ZS-EPMC115756293956891310.1039/d4sc05383d