Reply to: Mobility overestimation in molybdenum disulfide transistors due to invasive voltage probes

Reply to: Mobility overestimation in molybdenum disulfide transistors due to invasive voltage probes

Nature Electronics

10.1038/s41928-023-01044-5

http://dx.doi.org/10.1038/s41928-023-01044-5

Hong Kuan Ng, Du Xiang, Ady Suwardi, Guangwei Hu, Ke Yang, Yunshan Zhao, Tao Liu, Zhonghan Cao, Huajun Liu, Shisheng Li, Jing Cao, Qiang Zhu, Zhaogang Dong, Chee Kiang Ivan Tan, DongZhi Chi, Cheng-Wei Qiu, Kedar Hippalgaonkar, Goki Eda, Ming Yang, Jing Wu

Electrical and Electronic Engineering, Electronic, Optical and Magnetic Materials, Instrumentation

22 November 2023

Ng, H. K., Xiang, D., Suwardi, A., Hu, G., Yang, K., Zhao, Y., Liu, T., Cao, Z., Liu, H., Li, S., Cao, J., Zhu, Q., Dong, Z., Tan, C. K. I., Chi, D., Qiu, C.-W., Hippalgaonkar, K., Eda, G., Yang, M., & Wu, J. (2023). Reply to: Mobility overestimation in molybdenum disulfide transistors due to invasive voltage probes. Nature Electronics, 6(11), 839–841. https://doi.org/10.1038/s41928-023-01044-5

In this reply, we include new experimental results and verify that the observed non-linearity in rippled-MoS2 (leading to mobility kink) is an intrinsic property of a disordered system, rather than contact effects (invasive probes) or other device issues. Noting that Wu's model is based on a highly ordered ideal system, transfer curves are expected to be linear, and the carrier density is assumed be constant. Wu's model is therefore oversimplified for disordered systems and neglects carrier-density dependent scattering physics. Thus, it is fundamentally incompatible with our rippled-MoS2, and leads to the wrong conclusion.

Publisher Copyright

There was no specific funding for the research done

This version of the article has been accepted for publication, after peer review and is subject to Springer Nature’s AM terms of use, but is not the Version of Record and does not reflect post-acceptance improvements, or any corrections. The Version of Record is available online at: http://dx.doi.org/10.1038/s41928-023-01044-5

https://oar.a-star.edu.sg/communities-collections/articles/19518

2520-1131

Institute of Materials Research and Engineering