Affiliation:
1. Zhejiang University
2. Shenzhen University
3. The Chinese University of Hong Kong - Shenzhen
Abstract
The study of luminescence phenomena in non-conjugated systems, namely
clusteroluminescence, has gained significant attention for the
development of advanced luminescent materials. While conventional
strategies to manipulate the luminescent performances are based on
complicated chemical reactions. In contrast, nature employs complexation
to modulate luminescence, inspiring researchers to adopt an engineering
approach for the construction of efficient clusteroluminogens. In this
work, we explore the complexation-induced clusteroluminescence of
carbonyl-based polymers with nitrogen-containing organic bases,
exemplified by polyamide, polyester, polycarbonate, and
poly(monothiocarbonate). The results demonstrate an increase in the
intrinsic 440 nm emission of carbonyl groups and the emergence of new
emission peaks upon complexation. The study proposes a through-space
n‧‧‧π complex mechanism, highlighting the potential of complexation as a
strategy for modulating the clusteroluminescent properties of
non-conjugated systems. Further research is necessary to unravel
underlying mechanisms, optimize cluster structures, and explore new
materials for complexation, thereby advancing optoelectronics and
photonics fields and enabling practical applications of
clusteroluminescent materials.