Aluminum-Based Surface Polymerization on Carbon Dots with Aggregation-Enhanced Luminescence
Yunyang Zhao, Bingchen He, Enshan Liu, Jielei Li, Liming Wang, Shi Chen, Yeqing Chen, Zhan’ao Tan, Kar Wei Ng, Shuangpeng Wang, Zikang Tang, Songnan Qu
Abstract
in citric acid and urea via a microwave-heating dehydration process. Due to the strong coordination ability of Al ions with N and O atoms, considerable steric hindrance of Al-based cross-linked polymerization was introduced on the surface of the CDs, which not only avoided aggregation of the green emissive carbon cores but also facilitated efficient energy transfer from the blue emissive polymerized surface to the green emissive carbon cores in aggregates, leading to enhanced green emissions with a photoluminescence quantum yield (PLQY) of 72.7% in the solid state.
Topics & Concepts
LuminescencePolymerizationMaterials sciencePhotoluminescencePhotochemistryQuantum yieldCarbon fibersQuenching (fluorescence)Chemical engineeringChemistryPolymerFluorescenceOptoelectronicsPhysicsComposite materialEngineeringComposite numberQuantum mechanicsCarbon and Quantum Dots ApplicationsLuminescence and Fluorescent MaterialsLuminescence Properties of Advanced Materials