Design and practice of virtual simulation experiment for solid-state synthesis of upconversion phosphor and spectral measurement
In order to integrate the synthesis and characterization process of luminescent materials into experimental teaching,and to solve the problems of expensive instrument,high experimental costs,and the risk of high-temperature during the experimental process,a virtual simulation experi-mental teaching system for solid-state synthesis of upconversion phosphor and spectral measurement was constructed.Based on the principle of"high order,innovation and challenge",a virtual simula-tion experiment teaching content had been designed,and a teaching evaluation model that separates"learning"and"examination"had been established.Through virtual training on experimental tech-niques,equipment cognition,light path disassembly and measurement,the aim was to enable for students to fully understand and master the physical process of upconversion luminescence,the process of solid-state method for preparing upconversion phosphor,the use of related instruments,and the measurement and analysis methods of emission spectra.This virtual simulation experiment provided a new way for promotion of scientific research to teaching,and expanded the breadth and depth of basic physics experiment teaching.
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