Improvement of Low Voltage Cathodoluminescent Properties of Zinc Sulfide Phosphors by Sol–Gel Method
Improvement of Low Voltage Cathodoluminescent Properties of Zinc Sulfide Phosphors by Sol–Gel Method
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溶胶-凝胶法改善硫化锌荧光粉的低压阴极发光性能
DOI：
10.1143/jjap.35.l1600
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发表时间：
1996
影响因子：
1.5
通讯作者：
Y. Hatanaka
中科院分区：
文献类型：
--
作者：
H. Kominami;T. Nakamura;Y. Nakanishi;Y. Hatanaka
传统阴极射线管（CRT）中使用的磷光体难以在低于500 V的电压下使用，这是因为在其表面上存在电荷积累。为了克服这一缺点，ZnS：Ag，Cl荧光粉通过溶胶-凝胶法使用三异丙氧基铟涂覆有非常薄的In 2 O3导电层。研究了在50-500 V电压范围内的阴极发光特性，并与原态ZnS：Ag，Cl荧光粉进行了比较。据发现，In 2 O3涂覆的磷光体的亮度远好于接收态磷光体的亮度，当它们使用能量小于500 eV的电子束激发时。此外，阴极射线发光的老化特性显示出显著的改善。
The phosphors used in conventional cathode ray tubes (CRTs) are difficult to use at voltages lower than 500 V, because of charge buildup on their surface. To overcome this drawback a ZnS:Ag,Cl phosphor was coated with a very thin In2O3 conductive layer by the sol-gel method using tri-iso-propoxyindium. Properties of the cathodoluminescence at voltages ranging from 50–500 V were studied and compared with those of the as-received ZnS:Ag,Cl phosphor. It was found that the luminance of the In2O3-coated phosphor was far better than that of the as-received phosphor when they were excited using an electron beam with an energy of less than 500 eV. Furthermore, the aging characteristics of the cathodoluminescence showed marked improvement.