检索结果-南通市图书馆

Preparation and characteristic study of Schottky diodes based on Ga_(2)O_(3)thin films

The Journal of China Universities of Posts and Telecommunications 2024年第2期31卷 28-37页

作者： Zhang Xuhui chen Haifeng Liu Xiangtai Lu Qin Wang Zhan cheng Hang che lujie Guan Youyou Han Xiaocong School of Electronic Engineering Xi'an University of Posts and TelecommunicationsXi'an 710121China

This study uses atomic layer deposition(ALD)to grow Ga_(2)O_(3)films on SiO_(2)substrates and investigates the influence of film thickness and annealing temperature on film *** diode devices are fabricated based on the grown Ga_(2)O_(3)films,and the effects of annealing temperature,electrode size,and electrode spacing on the electrical characteristics of the devices are *** results show that as the film thickness increases,the breakdown voltage of the fabricated devices also increases.A Schottky diode with a thickness of 240 nm can achieve a reverse breakdown voltage of 300 *** film quality significantly improves as the annealing temperature of the film *** a voltage of 5 V,the current of the film annealed at 900℃is 64 times that of the film annealed at 700℃.The optimum annealing temperature for Ohmic contact electrodes is 450℃.At 550℃,the Ohmic contact metal tends to burn,and the performance of the device is *** the electrode spacing increases the forward current of the device but decreases the reverse breakdown *** the Schottky contact electrode size increases the forward current,but the change is not significant,and there is no significant change in the reverse breakdown *** device also performs well at high temperatures,with a reverse breakdown voltage of 220 V at 125℃.

关键词： atomic layer deposition(ALD) Ga_(2)O_(3)film Schottky diode annealing temperature

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Performance study of vertical MSM solar-blind photodetectorsbased onβ-Ga_(2)O_(3)thin film

引用

The Journal of China Universities of Posts and Telecommunications 2024年第2期31卷 17-27页

作者： chen Haifeng che lujie Lu Qin Wang Shaoqing Liu Xiangtai Liu Zhanhang Guan Youyou Zhao Xu cheng Hang Han Xiaocong Zhang Xuhui School of Electronic Engineering Xi'an University of Posts and TelecommunicationsXi'an 710121China

In this work,β-Ga_(2)O_(3)thin films were grown on SiO_(2)substrate by atomic layer deposition(ALD)and annealed in N_(2)atmosphere to enhance the crystallization quality of the thin films,which were verified from X-rays diffraction(XRD).Based on the grownβ-Ga_(2)O_(3)thin films,vertical metal-semiconductor-metal(MSM)interdigital photodetectors(PDs)were fabricated and *** PDs have an ultralow dark current of 1.92 pA,ultra-high photo-to-dark current ratio(PDCR)of 1.7×10^(6),and ultra-high detectivity of 4.25×10^(14)Jones at a bias voltage of 10 V under 254 nm deep ultraviolet(DUV).Compared with the horizontal MSM PDs under the same process,the PDCR and detectivity of the fabricated vertical PDs are increased by 1000 times and 100 times,*** addition,the vertical PDs possess a high responsivity of 34.24 A/W and an external quantum efficiency of 1.67×10^(4)%,and also exhibit robustness and repeatability,which indicate excellent *** the effects of electrode size and external irradiation conditions on the performance of the vertical PDs continued to be investigated.

关键词： Ga_(2)O_(3) atomic layer deposition(ALD) annealing vertical metal-semiconductor-metal(MSM)interdigital photodetectors

来源：

维普期刊数据库

同方期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Preparation and characteristic study of Schottky diodes based on GaOthin films

引用

The Journal of China Universities of Posts and Telecommunications 2024年

作者： Zhang Xuhui chen Haifeng Liu Xiangtai Lu Qin Wang Zhan cheng Hang che lujie Guan Youyou Han Xiaocong School of Electronic Engineering Xi’an University of Posts and Telecommunications

This study uses atomic layer deposition (ALD) to grow Ga2O3films on SiO2substrates and investigates the influence of film thickness and annealing temperature on film quality. Schottky diode devices are fabricated based on the grown Ga2O3films， and the effects of annealing temperature， electrode size， and electrode spacing on the electrical characteristics of the devices are studied. The results show that as the film thickness increases， the breakdown voltage of the fabricated devices also increases. A Schottky diode with a thickness of 240 nm can achieve a reverse breakdown voltage of 300 V. The film quality significantly improves as the annealing temperature of the film increases. At a voltage of 5 V， the current of the film annealed at 900℃ is 64 times that of the film annealed at 700℃. The optimum annealing temperature for Ohmic contact electrodes is 450℃. At 550℃， the Ohmic contact metal tends to burn， and the performance of the device is reduced. Reducing the electrode spacing increases the forward current of the device but decreases the reverse breakdown voltage. Increasing the Schottky contact electrode size increases the forward current， but the change is not significant， and there is no significant change in the reverse breakdown voltage. The device also performs well at high temperatures， with a reverse breakdown voltage of 220 V at 125℃.

关键词：

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

高原地区某部官兵血脂变化特点

引用

武警医学 2013年第7期24卷 583-585页

作者：刘燕冯大新赵禄阶王晓颖车杰郭生海武警青海总队医院西宁810012 武警总医院北京100039

目的通过对进驻高原作训期间健康官兵血脂的检测分析,了解高原高寒低氧环境对官兵血脂代谢的影响特点,为部队高原训练、处置突发事件的卫勤保障提供依据。方法随机抽取驻西宁地区(海拔2260 m)和格尔木地区(海拔2860 m)的急进、驻训2年、... 详细信息

目的通过对进驻高原作训期间健康官兵血脂的检测分析,了解高原高寒低氧环境对官兵血脂代谢的影响特点,为部队高原训练、处置突发事件的卫勤保障提供依据。方法随机抽取驻西宁地区(海拔2260 m)和格尔木地区(海拔2860 m)的急进、驻训2年、3年男性官兵300名,分成6组,每组50名;西宁地区一组、二组、三组,格尔木地区一组、二组、三组,各组分别代表两地的急进、驻训2年、3年及以上兵;检测分析血清胆固醇(totalcholesterol,TC)、甘油三酯(triglyceride,TG)、高密度脂蛋白(high density lipoprotein-cholesterol,HDL-C)、低密度脂蛋白(low density lipoprotein-cholesterol,LDL-C)及红细胞胆固醇(E-CH)。结果西宁地区官兵在TC、HDL-C指标上二、三组比较有显著性差异(P<0.05),二组的结果明显低于三组,TG指标在一、二之间比较差异有统计学意义(P<0.05),一组TG明显低于二组,说明急进西宁地区官兵的血脂变化特点为:驻训第二年时降低更为显著;格尔木地区官兵的血脂指标在TC、HDL-C、LDL-C上一组分别与二、三组比较差异有统计学意义(P<0.01),一组较二、三组明显降低,说明格尔木地区官兵血脂的变化特点为,一组官兵血脂指标就已发生明显降低,以TG指标为主。结论随着海拔的升高,男性官兵的血脂指标呈下降趋势;不同海拔地区官兵血脂指标的变化存在不同的特点,当海拔高度2800 m以上时,一组官兵的血脂指标降低更为显著,提示应加强急进高原地区官兵血脂指标的监测。

关键词：高原血脂胆固醇

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：