Nanoparticles Incorporated inside Single-Crystals: Enhanced Fluorescent Properties
Source abstract
Abstract
Incorporation of guest materials inside single-crystalline hosts leads to single-crystal composites that have become more and more frequently seen in both biogenic and synthetic crystals. The unique composite structure together with long-range ordering promises special properties that are, however, less often demonstrated. Here, we examine the fluorescent properties of quantum dots (QDs) and polymer dots (Pdots) encapsulated inside the hosts of calcite single-crystals. Two CdTe QDs and two Pdots are incorporated into growing calcite crystals, as the QDs and Pdots are dispersed in the crystallization media of agarose gels. As a result, enhanced fluorescent properties are obtained from the QDs and Pdots inside calcite single-crystals with greatly improved photostability and significantly prolonged fluorescence lifetime, compared to those in solutions and gels. Particularly, the fluorescence lifetime increases by 0.5–1.6 times after the QDs or Pdots are incorporated. The enhanced fluorescent properties indicate the advantages of encapsulation by single-crystal hosts that provide dense shells to isolate the fluorescent nanoparticles from atmosphere. As such, this work has implications for advancing the research of single-crystal composites toward their functional design.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Calcium Carbonate Crystallization and Inhibition · Paleontology and Stratigraphy of Fossils · Fluoride Effects and Removal
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
MOE Key Laboratory of Macromolecular Synthesis and Functionalization, Department of Polymer Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
Center for Functional Nanomaterials, Brookhaven National Laboratory, Upton, New York 11973, United States
State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou 310027, People’s Republic of China
Center of Electron Microscopy, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, People’s Republic of China
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun, 130012, People’s Republic of China
State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, Changchun, 130012, People’s Republic of China
Funding
Ministry of Science and Technology of the People's Republic of China · China Scholarship Council · National Natural Science Foundation of China · Natural Science Foundation of Zhejiang Province
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