It is shown that better emitter efficiency, high current carrying capability, and improved emitter base breakdown as well as collector base breakdown can be achieved for transistors with polysilicon emitters. 结果表明多晶硅发射极晶体管具有较高的发射效率,高的电流能力,改善了EB击穿和CB击穿。
Effects of soil textures and emitter material on the soil water movement and efficiency of negatively pressurized irrigation system 土壤质地和灌水器材料对负压灌溉出水流量及土壤水运移的影响
Then the selective emitter solar cell structure is proved to be an effective way to improve the solar cell conversion efficiency in the course of deeply analyzing on its advantages. 在深入地分析其优点的同时论证了选择性发射极结构是提高太阳电池光电转换效率的有效途径。
Low temperature models of current gain of the transistor are given, which include apparent bandgap narrowing, enhancement of emitter efficiency of poly-Si, Auger recombination, carrier freezing-out, etc. 该模型考虑了低温下多子和少子的冻析效应、禁带变窄效应、Auger复合、多晶硅发射效率增强效应等。
Selective emitter technology has proven to be an effective way to improve the conversion efficiency of cells, which can significantly improve the short wavelength response of cells. 选择性发射极技术已被证明是有效提高太阳电池转化效率的方法之一,它可显著提高太阳电池的短波响应。
Doping concentration and the thickness of ( p+) nc-Si: H emitter should be optimized to yield better cell efficiency. 可以通过优化(p+)nc-Si:H发射极的掺杂浓度以及厚度,进一步提高电池的光电转换效率。
Filter is the key equipment in the irrigation system, which can remove all kinds of impurities to avoid clogging of emitter. It can improve irrigation quality and operation efficiency. 过滤器是保证滴灌系统正常运行的关键设备,能有效清除灌溉水中各种杂质,避免灌水器堵塞,提高滴灌系统的灌水质量和运行效率。
By comparison, it is concluded that, using silicone can improve blue response of selective emitter solar cell module. In another word, using silicone can improve the quantum efficiency of module. 经比较得出,选择性发射极太阳电池组件使用密封剂silicone封装可提高其短波响应,即提高了量子效率。
The results show that polarization effect has a little affection to the characteristics of Ga-face terminated device, while the graded emitter can eliminate the peak of conduction band and improve the inject efficiency. 结果显示:对于Ga面向上的材料,极化效应对器件特性影响不大,而发射区组分渐变可以消除导带尖峰,提高电子的注入效率。