The Dependence of Near Band Edge Electro- and Photoluminescence on Purity of Starting Materials in ZnSe Crystals

  • Xiwu Fan
  • Jiying Zhang
Conference paper
Part of the Springer Proceedings in Physics book series (SPPHY, volume 38)


The dependence of exciton emission in electroluminescence (EL) and photoluminescence (PL) on purity of starting materials in ZnSe crystals is studied. Three types of ZnSe single crystals with different purity of starting materials grown by sublimation are used in this work. Increasing the purity of starting material of ZnSe crystal, the EL emission bands related to the impurity, such as deep center and free to bound (FB) emissions decrease, but the EL emission bands related to the free exciton increase; and the P band in PL in ZnSe under high excitation density, which isascribed to interaction between free excitons, appears and becomes intense.


Free Exciton Deep Center Exciton Emission ZnSe Crystal Twin Crystal 
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Copyright information

© Springer-Verlag Berlin, Heidelberg 1989

Authors and Affiliations

  • Xiwu Fan
    • 1
  • Jiying Zhang
    • 1
  1. 1.Changchun Institute of PhysicsAcademia SinicaChangchunP.R. China

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