Atomic threshold-switching enabled MoS2 transistors towards ultralow-power electronics.
Qilin Hua,Qilin Hua,Guoyun Gao,Chunsheng Jiang,Jinran Yu,Junlu Sun,Taiping Zhang,Bin Gao,Weijun Cheng,Renrong Liang,He Qian,Weiguo Hu,Qijun Sun,Zhong Lin Wang,Zhong Lin Wang,Huaqiang Wu +15 more
TLDR
This work presents an atomic threshold-switching field-effect transistor constructed by integrating a metal filamentary threshold switch with a two-dimensional MoS2 channel, and obtains abrupt steepness in the turn-on characteristics and 4.5 mV decade−1 subthreshold swing (over five decades).Abstract:
Power dissipation is a fundamental issue for future chip-based electronics. As promising channel materials, two-dimensional semiconductors show excellent capabilities of scaling dimensions and reducing off-state currents. However, field-effect transistors based on two-dimensional materials are still confronted with the fundamental thermionic limitation of the subthreshold swing of 60 mV decade−1 at room temperature. Here, we present an atomic threshold-switching field-effect transistor constructed by integrating a metal filamentary threshold switch with a two-dimensional MoS2 channel, and obtain abrupt steepness in the turn-on characteristics and 4.5 mV decade−1 subthreshold swing (over five decades). This is achieved by using the negative differential resistance effect from the threshold switch to induce an internal voltage amplification across the MoS2 channel. Notably, in such devices, the simultaneous achievement of efficient electrostatics, very small sub-thermionic subthreshold swings, and ultralow leakage currents, would be highly desirable for next-generation energy-efficient integrated circuits and ultralow-power applications. Here, the authors demonstrate an atomic threshold-switching field-effect transistor constructed by integrating a metal filamentary switch with a two-dimensional MoS2 channel, and obtain abrupt steepness in the turn-on characteristics and 4.5 mV/dec subthreshold swing over five decades.read more
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References
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Single-layer MoS2 transistors
TL;DR: Because monolayer MoS(2) has a direct bandgap, it can be used to construct interband tunnel FETs, which offer lower power consumption than classical transistors, and could also complement graphene in applications that require thin transparent semiconductors, such as optoelectronics and energy harvesting.
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Gianluca Fiori,Francesco Bonaccorso,Giuseppe Iannaccone,Tomas Palacios,Daniel Neumaier,Alan Seabaugh,Sanjay K. Banerjee,Luigi Colombo +7 more
TL;DR: A review of electronic devices based on two-dimensional materials, outlining their potential as a technological option beyond scaled complementary metal-oxide-semiconductor switches and the performance limits and advantages, when exploited for both digital and analog applications.
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Tunnel field-effect transistors as energy-efficient electronic switches
Adrian M. Ionescu,Heike Riel +1 more
TL;DR: Tunnels based on ultrathin semiconducting films or nanowires could achieve a 100-fold power reduction over complementary metal–oxide–semiconductor transistors, so integrating tunnel FETs with CMOS technology could improve low-power integrated circuits.
Journal ArticleDOI
Use of Negative Capacitance to Provide Voltage Amplification for Low Power Nanoscale Devices
Sayeef Salahuddin,Supriyo Datta +1 more
TL;DR: By replacing the standard insulator with a ferroelectric insulator of the right thickness it should be possible to implement a step-up voltage transformer that will amplify the gate voltage thus leading to values of S lower than 60 mV/decade and enabling low voltage/low power operation.
Journal ArticleDOI
MoS2 transistors with 1-nanometer gate lengths
Sujay B. Desai,Sujay B. Desai,Surabhi R. Madhvapathy,Surabhi R. Madhvapathy,Angada B. Sachid,Angada B. Sachid,Juan Pablo Llinas,Juan Pablo Llinas,Qingxiao Wang,Geun Ho Ahn,Geun Ho Ahn,Gregory Pitner,Moon J. Kim,Jeffrey Bokor,Jeffrey Bokor,Chenming Hu,H.-S. Philip Wong,Ali Javey,Ali Javey +18 more
TL;DR: Molybdenum disulfide (MoS2) transistors with a 1-nm physical gate length using a single-walled carbon nanotube as the gate electrode are demonstrated, which exhibit excellent switching characteristics with near ideal subthreshold swing of ~65 millivolts per decade and an On/Off current ratio of ~106.