报道了研制的 Al Ga N / Ga N微波功率 HEMT,该器件采用以蓝宝石为衬底的非掺杂 Al Ga N/ Ga N异质结构 ,器件工艺采用了 Ti/ Al/ Ni/ Au欧姆接触和 Ni/ Au肖特基势垒接触以及 Si N介质进行器件的钝化 .研制的 2 0 0μm栅宽 T型布局 Al ...报道了研制的 Al Ga N / Ga N微波功率 HEMT,该器件采用以蓝宝石为衬底的非掺杂 Al Ga N/ Ga N异质结构 ,器件工艺采用了 Ti/ Al/ Ni/ Au欧姆接触和 Ni/ Au肖特基势垒接触以及 Si N介质进行器件的钝化 .研制的 2 0 0μm栅宽 T型布局 Al Ga N / Ga N HEMT在 1.8GHz,Vds=30 V时输出功率为 2 8.93d Bm,输出功率密度达到 3.9W/mm ,功率增益为 15 .5 9d B,功率附加效率 (PAE)为 4 8.3% .在 6 .2 GHz,Vds=2 5 V时该器件输出功率为 2 7.0 6 d Bm ,输出功率密度为 2 .5 W/ mm ,功率增益为 10 .2 4 d B,PAE为 35 .2 % .展开更多
Power-electronic devices are widely used in various applications, such as voltage and frequency control for transmitting and converting electric power. As these devices are becoming increasingly important, there is a ...Power-electronic devices are widely used in various applications, such as voltage and frequency control for transmitting and converting electric power. As these devices are becoming increasingly important, there is a need to reduce their losses and improve their performance to reduce electric power consumption. Current power semiconductor devices, such as inverters, are made of silicon (Si), but the performance of these Si power devices is reaching its limit due to physical properties and energy bandgap. To address this issue, recent developments in wide bandgap (WBG) semiconductor materials, such as silicon carbide (SiC) and gallium nitride (GaN), offer the potential for a new generation of power semiconductor devices that can perform significantly better than silicon-based devices. In this research, a green synthesized copper-zinc-tin-sulfide (CZTS) nanoparticle is proposed as a new WBG semiconductor material that could be used for optical and electronic devices. Its synthesis, consisting of the production methods and materials used, is discussed. The characterization is also discussed, and further research is recommended in the later sections to enable the continual advancement of this technology.展开更多
文摘报道了研制的 Al Ga N / Ga N微波功率 HEMT,该器件采用以蓝宝石为衬底的非掺杂 Al Ga N/ Ga N异质结构 ,器件工艺采用了 Ti/ Al/ Ni/ Au欧姆接触和 Ni/ Au肖特基势垒接触以及 Si N介质进行器件的钝化 .研制的 2 0 0μm栅宽 T型布局 Al Ga N / Ga N HEMT在 1.8GHz,Vds=30 V时输出功率为 2 8.93d Bm,输出功率密度达到 3.9W/mm ,功率增益为 15 .5 9d B,功率附加效率 (PAE)为 4 8.3% .在 6 .2 GHz,Vds=2 5 V时该器件输出功率为 2 7.0 6 d Bm ,输出功率密度为 2 .5 W/ mm ,功率增益为 10 .2 4 d B,PAE为 35 .2 % .
文摘Power-electronic devices are widely used in various applications, such as voltage and frequency control for transmitting and converting electric power. As these devices are becoming increasingly important, there is a need to reduce their losses and improve their performance to reduce electric power consumption. Current power semiconductor devices, such as inverters, are made of silicon (Si), but the performance of these Si power devices is reaching its limit due to physical properties and energy bandgap. To address this issue, recent developments in wide bandgap (WBG) semiconductor materials, such as silicon carbide (SiC) and gallium nitride (GaN), offer the potential for a new generation of power semiconductor devices that can perform significantly better than silicon-based devices. In this research, a green synthesized copper-zinc-tin-sulfide (CZTS) nanoparticle is proposed as a new WBG semiconductor material that could be used for optical and electronic devices. Its synthesis, consisting of the production methods and materials used, is discussed. The characterization is also discussed, and further research is recommended in the later sections to enable the continual advancement of this technology.
