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CMOS图像传感器电子辐照实验的研究 被引量:7
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作者 周彦平 谢小龙 +2 位作者 刘洋 靳浩 于思源 《红外与激光工程》 EI CSCD 北大核心 2016年第5期95-99,共5页
研究了电子辐射剂量对CMOS图像传感器性能的影响,性能参数为平均暗电流输出和光强响应度。搭建了电子辐射场和光强响应度的测量系统,在器件处于工作状态和非工作状态下分别对其辐射,辐射剂量为:5×103 rad、1×104 rad、7×... 研究了电子辐射剂量对CMOS图像传感器性能的影响,性能参数为平均暗电流输出和光强响应度。搭建了电子辐射场和光强响应度的测量系统,在器件处于工作状态和非工作状态下分别对其辐射,辐射剂量为:5×103 rad、1×104 rad、7×104 rad、1×105 rad、5×105 rad。对于暗电流,当辐射总剂量超过7×104rad^1×105rad之间的某一个阈值时,暗电流随着辐射剂量的增长基本呈线性增加;光强响应方面,当器件处于非工作状态接受辐射时,辐射剂量对光强响应影响不大;当器件处于工作状态接受辐射时,辐射剂量超过7×104 rad,光强响应曲线会下移,斜率减小,灵敏度降低。理论分析后,得到了暗电流随电子辐射剂量的变化模型。研究表明:长期工作于空间环境下的CMOS图像传感器,容易受到辐射总剂量效应的影响,需采取一定的防辐射措施。 展开更多
关键词 CMOS图像传感器 辐射效应 电子辐射实验 平均暗电流输出 光强响应度
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Full-temperature covered switching material with triple optic-dielectric states in a lead-free hybrid perovskite 被引量:3
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作者 Tie Zhang Lulu Chu +5 位作者 Zhixu Zhang Jie Li Wanying Zhang Pingping Shi Qiong Ye Da-Wei Fu 《Science China Materials》 SCIE EI CSCD 2020年第11期2281-2288,共8页
Optic-electric responsive materials have attracted much attention for their applications in temperaturesensing,actuators,and memory switches.However,it is a challenge to integrate various functions to form multifuncti... Optic-electric responsive materials have attracted much attention for their applications in temperaturesensing,actuators,and memory switches.However,it is a challenge to integrate various functions to form multifunctional responsive materials.As molecule-based hybrid materials usually consist of organic and inorganic components,the introduction of multiple functions can be achieved through structural construction.Thus far,even though fulltemperature cover is required for device applications,fulltemperature covered multi-switchable hybrid materials have rarely been successfully synthesized.Herein,the dynamic[(CH3)3NOH]+cation and luminous center Mn(II)were introduced to form a hybrid material[(CH3)3NOH][Mn Cl3],showing multiple temperature-responsive behaviors.Upon temperature change,it exhibits multi-state dielectric switching response and intensity or peak shift response of luminous in full-temperature range(low,room,and high temperatures).These responsive behaviors are triggered by the motion or reorientation of[(CH3)3NOH]+cations and inorganic framework.Overall,the switchable photoelectric material has potential applications in multiple encrypted storage and sensor devices. 展开更多
关键词 responsive material multiple dielectric states crystal PEROVSKITE
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