Bright Blue Light—emitting Diodes Based on a Novel Fluorescent Dye Containing Heterocyclic Groups

Novel molecular material ,1-benzothiazoly-3-pheny1-pyrazoline (BTPP) was found to function as bright blue light emitting dye in organic electroluminescent device, and its optical and electric characteristics were investigated. This heterovyclic compound exhibited good characteristics of blue photoluminescence and electroluminescence,which had the emission peak at 450nm .The single layer light-emitting devices using BTPP as light -emitting material dispersed in poly(N-vinylcarbazole)(PVK) and double layer ones using PBD as hole block layer above the light-emitting layer were fabricated using conventional spin-casting and vaccum vapour deposition methods. The introduction of PBD has enhanced electron injection and luminance efficiency, compared with the single layer LEDs.     

硼酸使掺铁铝酸锂发光增强的现象

在硼酸存在下合成了掺铁铝酸锂荧光体,研究了在不同温度下硼酸加入量对荧光体发光强度的影响,并通过X射线粉末衍射和粒度分析,初步探讨了发光增加的原因。     

随钻气侵检测仪在胜利油田的应用

简要介绍了随钻气侵检测仪的结构特点、工作原理、现场模拟试验及应用情况。中原油田全尺寸实验井和胜利油田６口井的现场试验及应用结果表明，该仪器能实现早期气侵检测，比常规方法检测到气侵的时间明显提前，对高压气井和复杂地层井控具有重要的现实意义。     

提高X荧光光谱分析仪的完好率

ARL-8480X射线荧光光谱分析仪自1994年9月安装投入生产以来，每年夏季均出现各种不同的故障，造成仪器不能正常开机运行，影响了生产及配矿工作的顺利进行。本文论述了通过优化分析条件，降低仪器的故障率，确保仪器安全运行。     

YAG：Ce Phosphors for WLED via Nano-Pesudoboehmite Sol-Gel Route

The sub-micron sized YAG ： Ce phosphors were synthesized via a modified sol-gel method by peptizing nano-pesudoboehmite particulate. It is found that YAG phase from the dried gel powders appears at 1000 ℃ then the pure YAG phase exists at a relatively lower sintering temperature of 1400 ℃. The smaller sizes of phosphors in the ranges of 1 - 3 μm are obtained due to the contribution of seeding effects of nano-sized alumina particles to strengthen each step of the processes. Both the excitation and emission spectra of photoluminescence of the phosphor obtained at 1400 ℃ meet well with the spectroscopic requirements of the WLED phosphors.     

由单片机构成的噪声测量自动定位装置

介绍一种由单片机构成的噪声自动定位系统，他精度高、定位准确具有高度的智能化和优越的性能价格比。     

夜光型荧光油墨在单透视广告上的应用

单透视车窗广告,在白天光线好时容易看到广告画面,但是当夜色降临大地的时候,就什么也看不见了。若是要想在夜里随时能看到车窗广告,解决的方法只有一个,那就是采用夜光型荧光油墨。 夜光油墨是采用长余辉稀土发光材料,通过高科技手段制成的。在白天吸收太阳光10-30min,便自动持续发光10h以上,所以到深更半夜仍旧发光,特别是当车行驰在黑暗中,     

新的军用紫外光源

美国国防高级研究计划局(DARPA)正在实施一个研究计划,其目标是为生物战剂探测以及其他许多军事应用创造新的半导体紫外光源(SUVOS)。这一计划的动机是实现高效低成本的荧光生物传感器。目前的生物传感器使用大     

VFD GU384x32L-3900模块特性及应用

GU384x32L-3900是一款内藏驱动电路的、384×32点阵式VFD显示模块。介绍了GU384x32L-3900模块的基本结构及软件编程、硬件应用等特性并探讨了其在实际中的应用。