University Chemistry ›› 2020, Vol. 35 ›› Issue (4): 112-118.doi: 10.3866/PKU.DXHX201907039

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Study on Co-precipitation Synthesis, Structure Characterization and Photoluminescent Properties of K2GeF6: Mn Phosphors

Lingling Wei, Huan Jiao()   

  • Received:2019-07-28 Accepted:2019-08-15 Published:2019-09-11
  • Contact: Huan Jiao


A research-based comprehensive experiment was introduced:co-precipitation synthesis, structure characterization and photoluminescent properties of K2GeF6:Mn phosphors. Chemical redox and co-precipitation method was employed to synthesize K2GeF6:Mn phosphors. By using XRD, SEM and PL spectra characterization techniques, the effects of Mn contents and reactive temperatures on the structure and properties of K2GeF6:Mn phosphors were studied. The red phosphors show great potential in LEDs applications. Through this experiment, students can master the basic laboratory skills; interpret the experimental principles with their basic theoretical knowledge, which will further enhance their scientific research ability and comprehensive application of knowledge.

Key words: Research-based comprehensive experiment, Co-precipitation synthesis, Hexafluoride phosphors, Photoluminescence