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Title: Red-Colored Circularly Polarized Luminescence from a Benzo-Fused BODIPY-BINOL Complex

Journal Article · · Journal of Physical Chemistry. B
 [1];  [2];  [1];  [3];  [1]; ORCiD logo [3];  [2]; ORCiD logo [4]
  1. Univ. of Connecticut, Storrs, CT (United States)
  2. Loyola University, Chicago, IL (United States)
  3. Kumamoto University (Japan)
  4. Univ. of Connecticut, Storrs, CT (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)

Red emission with sharp bandwidth and high quantum yield are desired characteristics for organic chromophores in optoelectronic, spintronic, and biomedical applications. Here, we observe circularly polarized luminescence (CPL) with these characteristics from a benzo-fused BODIPY-BINOL complex (1). Using time-resolved optical spectroscopy, electrochemistry, and density functional theory calculations, we showed that the emissive excited state of 1 does not have a charge-transfer character, unlike the regular BODIPY counterpart (2). In conclusion, the rigidity and the lack of charge-transfer character make this class of molecules an appealing platform for CPL-active molecules in the red spectral region with ample room for improvement in the dissymmetry factor and brightness.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
SC0012704
OSTI ID:
2284070
Report Number(s):
BNL--225280-2024-JAAM
Journal Information:
Journal of Physical Chemistry. B, Journal Name: Journal of Physical Chemistry. B Journal Issue: 45 Vol. 127; ISSN 1520-6106
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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