【摘 要】
：
Pt Schottky diode gas sensors for CO are fabricated using AlGaN/GaN high electron mobility transistor (HEMTs) structure. The diodes show a remarkable sensor sig
【机 构】
：
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of S
论文部分内容阅读
Pt Schottky diode gas sensors for CO are fabricated using AlGaN/GaN high electron mobility transistor (HEMTs) structure. The diodes show a remarkable sensor signal (3 mA, in N2; 2mA in air ambient) biased 2 V after 1% CO is introduced at 50℃. The Schottky barrier heights decrease for 36 meV and 27 meV in the two cases respectively. The devices exhibit a slow recovery characteristic in air ambient but almost none in the background of pure N2, which reveals that oxygen molecules could accelerate the desorption of CO and offer restrictions to CO detection.
其他文献
学生进入高职院校后,英语水平的差距会使高职院校的英语教学产生一系列的问题,同一个班级英语水平较好的同学经常出现“吃不饱”的情况,而英语基础较差的同学这回出现“吃不
通过引用各类现实生活中存在的各种案例,通过对案例的分析以及结合目前建筑生产当中存在的问题进行总结,并引用相关资料、文献,从而得出施工中容易产生的安全隐患,并根据现实
Encoding information by firing pattes is one of the basic neural functions, and synchronization is important collective behaviour of a group of coupled neurons.
随着网络时代的到来,农村的信息化问题日益引起人们的关注.目前,在农村信息化过程中,手机作为无线通讯工具在农村得到普及.手机不仅是农村网民最主要的网购终端,也是他们最主
本文结合高职院校的特点,在分析计算机网络课程教学内容的基础上,针对计算机网络专业的特点与培养目标,提出提高教学质量的方法.
无权处分中合同的效力应当区别对待.由《买卖合同解释》第3条并不能得出无权处分合同一概为有效的结论,应视不同情形而定.在夫妻一方擅自处分共有房屋过程中订立的合同应为有
The solutions, in terms of orthogonal polynomials, of Dirac equation with analytically solvable potentials are investigated within a novel formalism by transfor
The atomic decay for a two-level atom interacting with a single mode of electromagnetic field is considered. For a chosen initial state, the exact solution of t
语言教学是幼儿教育的重要内容,教师应该组织特色的教学活动,引导幼儿在游戏中掌握更多的语言技巧,重点培养自主学习能力,告知幼儿要想成为高素质、全能型的优秀人才,必须在