Innovative Experimental Teaching for Undergraduates:Synthesis of TbPO4:Eu3+and Chiral Luminescence Measurement as an Example
Chirality is one of the basic phenomena widely existing in nature.The research on chiral light is not only widely applied in optics,biomedical science,materials science,and other fields,but also used to deeply explore the nature of chiral phenomena and promote basic research and technological innovation in related fields.In this paper,a comprehensive experiment of synthesis and chiral luminescence measurement of TbPO4:Eu3+was designed for undergraduate students'innovative experimental teaching.In this experiment,TbPO4:Eu3+rod-like nanocrystals were synthesized by co-precipitation method under the action of chiral molecule tartaric acid.The morphology and structure of TbPO4:Eu3+rod-like nanocrystals were characterized by transmission electron microscopy.The chiral spectra of the luminescence were measured using a laser with a wavelength of 532 nm as the light source.The results show that TbPO4:Eu3+rod-shaped nanocrystals are single-crystal substances with chiral emission light,and the luminescent asymmetry factor is 0.16.
chiral luminescencerare earth ion dopingphosphatesingle crystalexperimental teaching
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