The driving voltage of an organic light-emitting diode（OLED） is lowered by employing molybdenum trioxide（MoO3）/N,N＇-bis（naphthalene-1-yl）-N,N＇-bis（phe-nyl）-benzidine（NPB） multiple quantum well（MQW） struc...The driving voltage of an organic light-emitting diode（OLED） is lowered by employing molybdenum trioxide（MoO3）/N,N＇-bis（naphthalene-1-yl）-N,N＇-bis（phe-nyl）-benzidine（NPB） multiple quantum well（MQW） structure in the hole transport layer.For the device with double quantum well（DQW） structure of ITO/[MoO3（2.5 nm）/NPB（20 nm）]2/Alq3（50 nm）/LiF（0.8 nm）/Al（120 nm）],the turn-on voltage is reduced to 2.8 V,which is lowered by 0.4 V compared with that of the control device（without MQW structures）,and the driving voltage is 5.6 V,which is reduced by 1 V compared with that of the control device at the 1000 cd/m2.In this work,the enhancement of the injection and transport ability for holes could reduce the driving voltage for the device with MQW structure,which is attributed not only to the reduced energy barrier between ITO and NPB,but also to the forming charge transfer complex between MoO3 and NPB induced by the interfacial doping effect of MoO3.展开更多
研究了新型光波导阵列电光快速扫描器的馈电特性和馈电方式.针对N I N(P I P)型结构和P I N型结构的光波导阵列电光扫描器,导出了相应的馈电电压公式,提出了一种能最大限度降低驱动电压的新方法,并据此研制了4波导P I N阵列扫描器的控...研究了新型光波导阵列电光快速扫描器的馈电特性和馈电方式.针对N I N(P I P)型结构和P I N型结构的光波导阵列电光扫描器,导出了相应的馈电电压公式,提出了一种能最大限度降低驱动电压的新方法,并据此研制了4波导P I N阵列扫描器的控制电源,成功地进行了电光扫描实验.展开更多
We propose an optical transmitter with reduced modulator driving voltage. This reduction is achieved through an on-off ratio improvement technique based on FWM. We confirmed the feasibility of the method in a 43-Gbit/...We propose an optical transmitter with reduced modulator driving voltage. This reduction is achieved through an on-off ratio improvement technique based on FWM. We confirmed the feasibility of the method in a 43-Gbit/s experiment.展开更多
为在低杂波电流驱动(LHCD)系统打火等严重故障时及时保护高压电源,提出了设置三电极气体开关作为第一级快保护方案,并研制了一套能通流60 k A、5μs快速导通的三电极气体开关。通过联合LHCD高压电源与开关进行短路故障保护实验,证明了...为在低杂波电流驱动(LHCD)系统打火等严重故障时及时保护高压电源,提出了设置三电极气体开关作为第一级快保护方案,并研制了一套能通流60 k A、5μs快速导通的三电极气体开关。通过联合LHCD高压电源与开关进行短路故障保护实验,证明了开关工作性能稳定,大大提高了LHCD高压电源运行的安全性与可靠性,在脉冲功率装置中具有较好的应用前景。展开更多
基金Project supported by the National Natural Science Foundation of China (Grant Nos. 60906022 and 60676051)the Natural Science Foundation of Tianjin,China (Grant No. 10JCYBJC01100)+1 种基金the Scientific Developing Foundation of Tianjin Education Commission,China (Grant No. 2011ZD02)the Jiangsu Natural Science Development Foundation for University,China (Grant No. 09KJB140006)
文摘The driving voltage of an organic light-emitting diode（OLED） is lowered by employing molybdenum trioxide（MoO3）/N,N＇-bis（naphthalene-1-yl）-N,N＇-bis（phe-nyl）-benzidine（NPB） multiple quantum well（MQW） structure in the hole transport layer.For the device with double quantum well（DQW） structure of ITO/[MoO3（2.5 nm）/NPB（20 nm）]2/Alq3（50 nm）/LiF（0.8 nm）/Al（120 nm）],the turn-on voltage is reduced to 2.8 V,which is lowered by 0.4 V compared with that of the control device（without MQW structures）,and the driving voltage is 5.6 V,which is reduced by 1 V compared with that of the control device at the 1000 cd/m2.In this work,the enhancement of the injection and transport ability for holes could reduce the driving voltage for the device with MQW structure,which is attributed not only to the reduced energy barrier between ITO and NPB,but also to the forming charge transfer complex between MoO3 and NPB induced by the interfacial doping effect of MoO3.
文摘We propose an optical transmitter with reduced modulator driving voltage. This reduction is achieved through an on-off ratio improvement technique based on FWM. We confirmed the feasibility of the method in a 43-Gbit/s experiment.
文摘为在低杂波电流驱动(LHCD)系统打火等严重故障时及时保护高压电源,提出了设置三电极气体开关作为第一级快保护方案,并研制了一套能通流60 k A、5μs快速导通的三电极气体开关。通过联合LHCD高压电源与开关进行短路故障保护实验,证明了开关工作性能稳定,大大提高了LHCD高压电源运行的安全性与可靠性,在脉冲功率装置中具有较好的应用前景。
