Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing

Abstract Various studies on multi-valued-logic (MVL) computing, which utilizes more than two logic states, have recently been resumed owing to the demand for greater power saving in the current logic technologies. In particular, unlike old-fashioned researches, extensive efforts have been focused on...

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Autores principales:	Seunghwan Seo, Jiwan Koo, Jae-Woong Choi, Keun Heo, Maksim Andreev, Je-Jun Lee, Ju-Hee Lee, Jeong-Ick Cho, Hyeongjun Kim, Gwangwe Yoo, Dong-Ho Kang, Jaewoo Shim, Jin-Hong Park
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/ac1be82c242f4719b7edbf2f83b23b50
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spelling	oai:doaj.org-article:ac1be82c242f4719b7edbf2f83b23b502021-12-02T17:03:41ZControllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing10.1038/s41699-021-00213-42397-7132https://doaj.org/article/ac1be82c242f4719b7edbf2f83b23b502021-03-01T00:00:00Zhttps://doi.org/10.1038/s41699-021-00213-4https://doaj.org/toc/2397-7132Abstract Various studies on multi-valued-logic (MVL) computing, which utilizes more than two logic states, have recently been resumed owing to the demand for greater power saving in the current logic technologies. In particular, unlike old-fashioned researches, extensive efforts have been focused on implementing single devices with multiple threshold voltages via a negative-differential current change phenomenon. In this work, we report a multiple negative-differential-transconductance (NDT) phenomenon, which is achieved through the control of partial gate potential and light power/wavelength in a van-der-Waals (vdW) multi-channel phototransistor. The partial gating formed a controllable potential barrier/well in the vdW channel, enabling control over the collection of carriers and eventually inducing the NDT phenomenon. Especially, the strategy shining lights with different powers/wavelengths facilitated the precise NDT control and the realization of the multiple NDT phenomenon. Finally, the usability of this multiple NDT device as a core device of MVL arithmetic circuits such as MVL inverters/NAND/NOR gates is demonstrated.Seunghwan SeoJiwan KooJae-Woong ChoiKeun HeoMaksim AndreevJe-Jun LeeJu-Hee LeeJeong-Ick ChoHyeongjun KimGwangwe YooDong-Ho KangJaewoo ShimJin-Hong ParkNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Seunghwan Seo Jiwan Koo Jae-Woong Choi Keun Heo Maksim Andreev Je-Jun Lee Ju-Hee Lee Jeong-Ick Cho Hyeongjun Kim Gwangwe Yoo Dong-Ho Kang Jaewoo Shim Jin-Hong Park Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
description	Abstract Various studies on multi-valued-logic (MVL) computing, which utilizes more than two logic states, have recently been resumed owing to the demand for greater power saving in the current logic technologies. In particular, unlike old-fashioned researches, extensive efforts have been focused on implementing single devices with multiple threshold voltages via a negative-differential current change phenomenon. In this work, we report a multiple negative-differential-transconductance (NDT) phenomenon, which is achieved through the control of partial gate potential and light power/wavelength in a van-der-Waals (vdW) multi-channel phototransistor. The partial gating formed a controllable potential barrier/well in the vdW channel, enabling control over the collection of carriers and eventually inducing the NDT phenomenon. Especially, the strategy shining lights with different powers/wavelengths facilitated the precise NDT control and the realization of the multiple NDT phenomenon. Finally, the usability of this multiple NDT device as a core device of MVL arithmetic circuits such as MVL inverters/NAND/NOR gates is demonstrated.
format	article
author	Seunghwan Seo Jiwan Koo Jae-Woong Choi Keun Heo Maksim Andreev Je-Jun Lee Ju-Hee Lee Jeong-Ick Cho Hyeongjun Kim Gwangwe Yoo Dong-Ho Kang Jaewoo Shim Jin-Hong Park
author_facet	Seunghwan Seo Jiwan Koo Jae-Woong Choi Keun Heo Maksim Andreev Je-Jun Lee Ju-Hee Lee Jeong-Ick Cho Hyeongjun Kim Gwangwe Yoo Dong-Ho Kang Jaewoo Shim Jin-Hong Park
author_sort	Seunghwan Seo
title	Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
title_short	Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
title_full	Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
title_fullStr	Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
title_full_unstemmed	Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
title_sort	controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/ac1be82c242f4719b7edbf2f83b23b50
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Controllable potential barrier for multiple negative-differential-transconductance and its application to multi-valued logic computing

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