Journal
AGGREGATE
Volume 3, Issue 2, Pages -Publisher
WILEY
DOI: 10.1002/agt2.169
Keywords
aggregation-induced emission; carbon dots; carbonized polymer dots; crosslink-enhanced emission effect; luminescence
Funding
- National Natural Science Foundation of China [21774041]
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The luminescence mechanism of carbonized polymer dots (CPDs) is discussed in this review, with emphasis on their aggregation behavior. CPDs, as a new kind of luminescent nanomaterials, inherit the stability and biocompatibility of carbon materials, and possess the luminescence tunability, water solubility, and high photoluminescence quantum yield of organic luminescent materials. The review summarizes the special luminescence phenomena of CPDs in the aggregate state and discusses relevant mechanisms to consolidate relevant statements.
The aggregate luminescence behavior of organic luminescent materials has been studied extensively. As a new kind of luminescent nanomaterials, carbonized polymer dots (CPDs) not only inherit the stability and biocompatibility of carbon materials, but also possess the luminescence tunability, water solubility, and high photoluminescence quantum yield of organic luminescent materials, rendering them a strong candidate for the next generation of light-emitting materials. Previously, people mainly understood its luminescence from the perspective of carbon materials, but some luminescence mechanisms are still unclear. In this review, we discuss the luminescence mechanism by referring to organic luminescent materials with emphasis on their aggregation behavior. Firstly, three representative aggregate luminescence phenomena of organic luminescent materials are briefly introduced. Chromophores present in CPDs are elaborated to further discuss the potential interactions between them, with emphasis on the role of crosslinked polymer networks. On this basis, some special luminescence phenomena of CPDs in the aggregate state are summarized, and relevant mechanisms are discussed in detail to consolidate relevant statements.
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