【摘 要】
：
We report on InP-based metamorphic InGaAs photodiodes grown by gas source molecular beam epitaxy (MBE), in which a relatively thin compositional graded wide ban
【机 构】
：
State Key Laboratory of Functional MateriaLs for Informatics, Shanghai Institute of Microsystem and
论文部分内容阅读
We report on InP-based metamorphic InGaAs photodiodes grown by gas source molecular beam epitaxy (MBE), in which a relatively thin compositional graded wide band-gap InxAl1-xAs buffer layer is adopted. In the photodiodes, InAlAs is aLso taken as cap layers, so this structure is suitable for both front and back illuminations. At room temperature the photodiodes show 50% cut-off wavelength of 2.66#m, with measured peak detectiv-ity of 4.91×109 cmHz1/2/W at 2.57μm, and the typical dark current and RoA are 7.68μA/0.94Ωcm2 and 291 nA/24.29Ωcm2 at 290 K and 150 K respectively for the devices in diameter 300 μm. Their performances are compared to the 2.5-μm eut-off photodiodes with similar structures.
其他文献
The mechanism of striations in dielectric barrier discharge in pure neon is studied by a two-dimensional particlein-cell/Monte Carlo collision (PIC-MCC) model.
Properties of the Ag/Ni/p-GaN structure at different temperatures are studied by Auger electron spectroscopy, scanning electron microscopy and high resolution x
为适应时代的发展,面对新的课程理念,新的课程目标,对教师而言不仅是机遇,也富有挑战,我们需要在教学中正确定位自己的角色,建立良好的师生关系,改进教学方法,从而激发学生的
创客教育是一种融合信息技术,秉承“开放创新、探究体验”的教育理念,以“创造中学”为主要的学习方式和培养各类创新型人才为目的的新型教育模式。在创客教育引领下探究化学
安捷伦与中国移动签署战略合作协议备忘录:安捷伦科技近日宣布与中国移动达成合作协议,双方将共同致力于发展5G技术的研究。安捷伦科技将积极支持中国移动的下一代无线通信5G
Dependences of anticrossing gaps between pairs of subbands in Alx Ga1-x N/GaN double quantum wells (DQWs) on the width and the Al composition of the central bar
We experimentally demonstrate an S-band double-pass (DP) discrete fibre Raman amplifier (FRA ) gain-flattened by using a mechanically induced long-period fibre
The spectroscopic technique is employed to study the emission of atmospheric argon-nitrogen plasma jet generated by an original dc double anode plasma torch. Th
在开展“显微镜”一节的教学时,首先应分析课标、教材和学情,然后确定教学目标、重点和难点。教学过程的设计要有所创新突破,对显微镜的几个主要结构,依据功能相似性进行分类
作为教师,我们的思维不应该局限于教材,在高中生物实验教学中对仪器材料的把握,更应该遵循教学实际需要的原则,能够进行灵活的选择与控制。创造性地开展实验教学,有利于课程