期刊
ADVANCED ELECTRONIC MATERIALS
卷 6, 期 9, 页码 -出版社
WILEY
DOI: 10.1002/aelm.202000479
关键词
CMOS; MoTe2; nonvolatile memories; P(VDF-TrFE); voltage signals
资金
- National Research Foundation of Korea (NRF) (vdWMRC center) [2017R1A2A1A05001278, 2017R1A5A1014862]
- NRF - Korean government (MEST) [2018M3D1A1058536]
- Basic Science Research Program through NRF - Ministry of Education [NRF-2019R1I1A1A01063644]
- National Research Foundation of Korea [4199990114260, 4199990514159, 2017R1A2A1A05001278] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ferroelectric nonvolatile memory (FeNVM) field effect transistors (FETs) are reported using p-channel MoTe(2)and P(VDF-TrFE) ferroelectric polymer, and furthermore a complementary type memory cell is demonstrated coupling p- and n-channel MoTe2FETs. A top-gate p-FET with P(VDF-TrFE) and a bottom-gate n-FET with Al(2)O(3)dielectric are integrated as one cell. Such a complementary type cell is more desirable research path in respect of power consumption but rare to find in 2D-based memory reports. Among many 2D semiconductors MoTe(2)is selected, because p-type MoTe2-based FeNVM is not reported yet, and also because it is relatively easy to obtain both p- and n-channel from the homogeneous MoTe2. The integrated device also operates as a complementary metal oxide semiconductor inverter in a small voltage range from 0 to approximate to 2.5 V, but primarily works as a FeNVM circuit when p-channel with top P(VDF-TrFE) is biased with high voltages over the coercive electric field (E-c) of the polymer. The bottom gate n-channel transistor operates as a switching device in the FeNVM cell, allowing voltage output signals during device operations. It is concluded that the complementary type FeNVM cell is practical and novel enough to report as a first time demonstration based on 2D MoTe2.
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