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High-performance heterogeneous complementary inverters based on n-channel MoS2 and p-channel SWCNT transistors

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Abstract

Heterogeneous complementary inverters composed of bi-layer molybdenum disulfide (MoS2) and single-walled carbon-nanotube (SWCNT) networks are designed, and n-type MoS2/p-type SWCNT inverters are fabricated with a backgated structure. Field-effect transistors (FETs) based on the MoS2 and SWCNT networks show high electrical performance with large ON/OFF ratios up to 106 and 105 for MoS2 and SWCNT, respectively. The MoS2/SWCNT complementary inverters exhibit V in-V out signal matching and achieve excellent performances with a high peak voltage gain of 15, a low static-power consumption of a few nanowatts, and a high noise margin of 0.45VDD, which are suitable for future logic-circuit applications. The inverter performances are affected by the channel width-to-length ratios (W/L) of the MoS2-FETs and SWCNT-FETs. Therefore, W/L should be optimized to achieve a tradeoff between the gain and the power consumption.

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Acknowledgments

This work was supported by the National Natural Science Foundation of China (Nos. 51672154, 51372130, and 61401251), Open Research Fund Program of the State Key Laboratory of Low-Dimensional Quantum Physics (No. KF201517), and Open Foundation of State Key Laboratory of Electronic Thin Films and Integrated Devices (No. KFJJ201402).

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Authors and Affiliations

  1. Institute of Microelectronics, Tsinghua National Laboratory for Information Science and Technology (TNList), Tsinghua University, Beijing, 100084, China

    Zhixin Li, Dan Xie, Ruixuan Dai, Yilin Sun, Mengxing Sun, Cheng Zhang & Xian Li

  2. Institute of Functional Nano and Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-based Functional Materials and Devices, Soochow University, Suzhou, 215123, China

    Jianlong Xu

Authors
  1. Zhixin Li
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  2. Dan Xie
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  3. Ruixuan Dai
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  4. Jianlong Xu
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  5. Yilin Sun
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  6. Mengxing Sun
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  7. Cheng Zhang
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  8. Xian Li
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Correspondence to Dan Xie.

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Li, Z., Xie, D., Dai, R. et al. High-performance heterogeneous complementary inverters based on n-channel MoS2 and p-channel SWCNT transistors. Nano Res. 10, 276–283 (2017). https://doi.org/10.1007/s12274-016-1286-4

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  • DOI: https://doi.org/10.1007/s12274-016-1286-4

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