Lumination-property characterization for InP/ZnSe/ZnSeS/ZnS quantum dots with variable temperature

Hua Xiao1; Xijian Duan2; Junjie Hao3; Kunjian Li1; Yanglie Li1; Weiming Qu1

10.1109/EMP59310.2023.10373207

2023

979-8-3503-3098-4

2023 International Conference on Energy, Materials, and Photonics (EMP)

1-4

17-20 Aug. 2023

Singapore, Singapore

Red-emissive InP/ZnSe/ZnSeS/ZnS quantum dots (QDs) with multiple shells were fabricated and evaluated with a lumination-property-characterization system with variable temperature. The proposed system is capable of monitoring luminous efficiency, light intensity, optical spectra, and temperature variation of the QD solution with heating equipment. The luminous efficiency of the 611-nm QD sample decreases to 0.35 under 140°C and reverts to 0.69 under the ambient temperature (RT). The light intensity and fluorescent lifetime of the 611-nm sample show a smaller variation after heating in comparison with that of the 649-nm sample, which possesses a larger core during the synthesizing process. The proposed illumination property characterization system can effectively evaluate QDs with different excitation and temperature conditions. Our research results on InP/ZnSe/ZnSeS/ZnS QDs under various temperatures can provide guidelines for the application of InP QDs in display, illumination, and communication.

InP quantum dots thermal treatment luminous efficiency fluorescent lifetime peak wavelength

其他

EI

20240415433202

Fluorescence ; III-V semiconductors ; Indium phosphide ; Nanocrystals ; Quantum efficiency ; Selenium compounds ; Semiconducting indium phosphide ; Semiconductor quantum dots ; Temperature

Thermodynamics:641.1 ; Semiconducting Materials:712.1 ; Compound Semiconducting Materials:712.1.2 ; Semiconductor Devices and Integrated Circuits:714.2 ; Light/Optics:741.1 ; Nanotechnology:761 ; Inorganic Compounds:804.2 ; Quantum Theory; Quantum Mechanics:931.4 ; Crystalline Solids:933.1

IEEE

1.School of Electronic and Information Engineering, Guangdong Ocean University, Zhanjiang, China
2.Department of Electrical and Electronic Engineering, Institute of Nanoscience & Applications, Southern University of Science and Technology, Shenzhen, China
3.College of Integrated Circuits and Optoelectronic Chips, Shenzhen Technology University, Shenzhen, China

Hua Xiao,Xijian Duan,Junjie Hao,et al. Lumination-property characterization for InP/ZnSe/ZnSeS/ZnS quantum dots with variable temperature[C],2023:1-4.