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Progress in light-to-frequency conversion circuits based on low dimensional semiconductors 被引量:1
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作者 Seung Gi Seo Seung Yeob Kim +1 位作者 Jinheon Jeong Sung Hun Jin 《Nano Research》 SCIE EI CSCD 2021年第9期2938-2964,共27页
As the scaling down of Si devices in the range less than few nm has been expedited up to a physical limit of Si,low dimensional materials have been regarded as one of next generation semiconductors.Among a variety of ... As the scaling down of Si devices in the range less than few nm has been expedited up to a physical limit of Si,low dimensional materials have been regarded as one of next generation semiconductors.Among a variety of applications,studies on photodetectors have been actively investigated with their novel optical properties as well as astonishing electrical properties.However,most of research has focused on single device-type photodetector(i.e.,photo-diode or photo-transistor).Contrary to common photodetector,light-to-frequency circuits(LFCs)are based on frequency reading with photosensitive ring oscillators,which has better noise immunity and reduced system complexity,thus,can be utilized to novel application even in internet of things(loT)and bio&medical fields.In this review,low dimensional materials based circuit level photodetectors,which are core elements as the form of either inverters or ring oscillators for demonstration of LFCs,are introduced.Along with the introduction of low dimensional materials and their optical properties for optoelectronics,a fundamental concept for LFCs is specifically described.Thereafter,research progress on low dimensional material based photosensitive inverters is addressed according to the types of devices.Furthermore,as one of practical method for the improvement of photodetector performance,molecular doping technology is presented.Lastly,complete system of LFCs and its digitization for demonstration of production level,and potential application in the respective four aspects,(i)medical SpO_(2) detection,(ii)biological fluidic system,(iii)auto-lighting in agriculture,and(iv)optical feedback and sensing systems,are presented as systematic way to address the envisioned practical applications for the future displays including virtual reality and augmented reality,and others.As a remark,LFCs based on low dimensional semiconductors are expected to be one of core components in trillion’s sensor area. 展开更多
关键词 PHOTODETECTOR light-to-frequency conversion circuit transition metal dichalcogenide carbon nanotube
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国外模拟集成电路近期发展动态
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作者 李开成 《微电子学》 CAS 1988年第5期1-8,共8页
近年来,由于器件工艺水平的提高和电路设计技术的改进,模拟集成电路获得了很大的发展。席卷世界先进工业国家的三“A”革命(工厂自动化、办公室自动化和家庭自动化)和各种高精尖的军事装备,使品种繁多的模拟电路找到了用武之地。目前,... 近年来,由于器件工艺水平的提高和电路设计技术的改进,模拟集成电路获得了很大的发展。席卷世界先进工业国家的三“A”革命(工厂自动化、办公室自动化和家庭自动化)和各种高精尖的军事装备,使品种繁多的模拟电路找到了用武之地。目前,国外半导体厂家正在竞相开发新的品种,并且不断扩大其应用范围,本文拟对应用比较广泛的几种主要模拟集成电路在国外的发展情况作一简单介绍。 展开更多
关键词 Analog IC Operational Amplifier High freguency linear amplifier Non-linear amplifier Integrated voltage regulator Data conversion circuit
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