Plasmon-enhanced Ag/Sb2Te3 quantum dots fluorescence
Abstract
3D topological insulator Sb2Te3 possesses unique optical and electrical properties, while its fluorescence characteristics remain largely unexplored. Here, we report a study on the photoluminescence enhancement of Sb2Te3 quantum dots (QDs) via localized surface plasmon resonance (LSPR). Using a liquid-phase ultrasonic exfoliation technique, we fabricated Ag/Sb2Te3-QDs composites, where the LSPR effect of the Ag nanoparticles resulted in a remarkable 530% increase in the fluorescence of the Sb2Te3-QDs. We provide insight into the physical mechanism of this enhancement through detailed analysis of energy transfer and conversion processes. This study establishes a fundamental understanding of Sb2Te3-QDs luminescence and suggests its potential applications in optical devices.
Article Details
Journal Info
Applied Physics Letters
American Institute of Physics
Authors (9)
Zhiyong Yu
State Key Laboratory of Physical Chemistry of Solid Surfaces, College of Chemistry and Chemical Engineering
Zhenhua Wu
Boyuan Cai
School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology 1 , Shanghai 200093,
Khay Wai See
CCTEG China Coal Research Institute 5 , No. 5 Qingniangou East Road, Heping Street, Chaoyang District, Beijing 100013,
Mengjun Li
Jinming Hu
Yinan Zhang
Stoddart Institute of Molecular Science, Department of Chemistry, Zhejiang Key Laboratory of Excited-State Energy Conversion and Energy Storage, State Key Laboratory of Silicon and Advanced Semiconductor Materials
Min Gu
Zengji Yue
School of Artificial Intelligence Science and Technology, University of Shanghai for Science and Technology 1 , Shanghai 200093,