排序方式: 共有5条查询结果,搜索用时 0 毫秒
1
1.
In this paper AlGaInP light emitting diodes with different types of electrodes: Au/Zn/Au-ITO Au/Ti-ITO Au/Ge/Ni-ITO and Au-ITO are fabricated. The photoelectricity properties of those LEDs are studied. The results show that the Au/Zn/Au electrode greatly improves the performance of LEDs compared with the other electrodes. Because the Au/Zn/Au electrode not only forms a good Ohmic contact with indium tin oxide (ITO), but also reduces the specific contact resistances between ITO and GaP, which are 1.273×10-6 Ω · cm2 and 1.743×10-3 Ω ·cm2 between Au/Zn/Au-ITO and ITO-GaP respectively. Furthermore, the textured Zn/Au-ITO/Zn electrode is designed to improve the performances of LEDs, reduce the forward-voltage of the LED from 1.93 to 1.88 V, and increase the luminous intensity of the LEDs from 126 to 134 mcd when driven at 20 mA. 相似文献
2.
三维地质建模与找矿靶区优选是当前国际地学研究的热点和难点。利用三维可视化技术和数学建模方法,通过自主研发GeoCube三维矿产资源预测与评价软件,实现了栾川钼矿区三维地学信息定量化提取与集成。在此基础上,开展多种数学建模方法集成对比及其网格单元划分的不确定性分析,认为证据权法具有稳健的三维空间集成分析特征,其三维环境中的预测远景靶区为该区深部找矿定位、定量研究提供了科学依据。研究成果为中国老矿山深部成矿定量预测技术方法研究提供借鉴。 相似文献
3.
4.
5.
1