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  • 學位論文

FED低壓螢光體發光特性之研究

The Study of Low Voltage Phosphors for the FED Applications

指導教授 : 張淑美 高至誠

摘要


場發射顯示器( FED,Field Emission Display )目前的發展係制約於場發射源的效能及螢光體的良窳。多數的場發射顯示器螢光體在電壓低於3KV時,因低的電子穿透力及螢光體表面的電荷積聚,導致發光輝度普遍偏低。本項研究係從三個不同的場發射源中,找出效能相對高者,並以之為陰極,探討場發射顯示器綠光螢光體,在 700 V ~ 1300 V 電壓與相對電流下,不同相對濃度對螢光體發光輝度的影響。 我們找到綠光螢光體ZnS:Cu:Al,發現其在電壓1200V下之發光輝度達5257 cd/m2 。

並列摘要


The present development of Field Emission Display (FED) is restricted by the efficiency of field emitters and the quality of phosphors. Most phosphors have low luminous efficiency at voltages below 3 KV due to the low electron penetration depth and electrical charging of the phosphor surface. In this study, three different field emitters and one green phosphor with different concentration are investigated as the cathode and phosphor respectively. The optoelectronic properties of devices are discussed under varied voltage from 700V to 1,300 V. The best green device achieved has the luminescence as high as 5257 cd/m2 under the low driving voltage (1200 V).

參考文獻


[41] 蘇郁倫, 矽奈米結構之場發射發光元件, 碩士論文, 國立台灣大學電子工程所, p. 76, 2004
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