Zhou, Zhuxin published the artcileAchieving white-light emission in a single-component polymer with halogen-assisted interaction, Application of 4,4-Diaminodicyclohexyl methane, the publication is Science China: Chemistry (2021), 64(3), 467-477, database is CAplus.
White-light emitting (WLE) polymers have attracted continuous attention for their promising applications in solid-state lighting, flexible display and related fields. However, achieving dual-emission and pure white-light emission in a single-component polymer is still challenging. In this study, a brominated single-component polymer BrOD-TFB was designed and synthesized, which shows dual-emission and white light emission properties in solution and room-temperature phosphorescence (RTP) in thin films. The dual-emission properties can be tuned by concentration, solvent polarity, and excitation energy. Spectral anal. and theor. calculations reveal that the origin of the high-energy emission band (HEB) is intramol. charge transfer (ICT) along the polymer chain, while the low-energy emission band (LEB) originates from the excited-state related to the intra-chain and inter-chain C-Br···π interactions as demonstrated by the single-crystal structure of the model compound Appropriate control of the formation and the destruction of the halogen-assisted interactions can initiate white-light emission in the single-component polymer. More interestingly, by dispersing BrOD-TFB (0.1 wt%) in a non-emissive, colorless and transparent polymer, the characteristics of this white-light emission can be fully demonstrated while exhibiting unexpected RTP properties, with photoluminescence quantum efficiency (φPL) of up to 23% and CIE coordinates of (0.32, 0.32).
Science China: Chemistry published new progress about 1761-71-3. 1761-71-3 belongs to quinuclidine, auxiliary class Ploymers, name is 4,4-Diaminodicyclohexyl methane, and the molecular formula is C10H9NO, Application of 4,4-Diaminodicyclohexyl methane.
Referemce:
https://en.wikipedia.org/wiki/Quinuclidine,
Quinuclidine | C7H13N | ChemSpider