Thermally Driven Amorphous‐Crystalline Phase Transition of Carbonized Polymer Dots for Multicolor Room‐Temperature Phosphorescence (Advanced Optical Materials 16/2021)
Zifei Wang, Jian Shen, Bin Xu, Qinglin Jiang, Shouli Ming, Liting Yan, Zhenhua Gao, Xue Wang, Chaofeng Zhu, Xiangeng Meng
Abstract
Multicolor carbon dots-based materials offer a variety of opportunities for potential applications in bioimaging, optoelectronic devices, and information security. In article number 2100421, Zifei Wang and co-workers present a strategy for the first time based on thermally driven amorphous-crystalline phase transition to achieve multicolor carbonized polymer dots (CPDs) with the emission color tunable from green to orange-red. Potential application of the developed CPDs as printable and writable security inks for advanced multilevel anti-counterfeiting and encryption is demonstrated.
Topics & Concepts
Materials sciencePhosphorescenceAmorphous solidPolymerNanotechnologyCarbonizationPhase transitionOptoelectronicsOpticsFluorescenceComposite materialScanning electron microscopeOrganic chemistryChemistryQuantum mechanicsPhysicsCarbon and Quantum Dots ApplicationsAdvanced Nanomaterials in CatalysisGraphene and Nanomaterials Applications