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本文报道了新型较高亮度的 Zn S:L i2 O蓝色薄膜电致发光 ;烧结了新型的蓝色发光材料 Zn S:L i2 O,用电子束蒸发制备出 Si O2 夹层结构的 Zn S:L i2 O蓝色电致发光器件 ;通过吸收光谱、电致发光光谱、激发电压与发光强度的关系等研究了 Zn S:L i2 O薄膜发光特性。认为 Zn S:L i2 O薄膜电致发光可能是由 Zn填隙和氧替硫引起的 ,氧替位能抑制通过硫空位产生的无辐射跃迁使蓝色发光增强
In this paper, a new type of Zn S: Li 2 O blue thin-film electroluminescence has been reported. A novel blue luminescent material, Zn S: Li 2 O, has been sintered. L i2 O blue electroluminescent devices. The luminescent properties of ZnS: Li 2 O thin films were investigated by absorption spectra, electroluminescence spectra, excitation voltage and luminescence intensity. It is considered that the electroluminescence of ZnS: Li2O thin films may be caused by Zn interstitial and oxygen substitutional sulfur, and the oxygen substitution can inhibit the non-radiative transition through sulfur vacancies to enhance the blue luminescence