Islam Mohammad Razzakul, Hu Jiali, Kareekunnan Afsal, Kuki Akihiro, Kudo Takeshi, Maruyama Takeshi, Nishizaki Atsushi, Tokita Yuki, Akabori Masashi, Mizuta Hiroshi
School of Materials Science, Japan Advanced Institute of Science and Technology, 1-1 Asahidai, Nomi 923-1292, Japan.
OTOWA ELECTRIC CO., LTD., 5-6-20, Shioe Amagasaki 661-0976, Hyogo, Japan.
ACS Omega. 2024 Jun 25;9(27):29751-29755. doi: 10.1021/acsomega.4c03350. eCollection 2024 Jul 9.
In this study, we investigate the scope of molybdenum disulfide (MoS) as an electric field sensor. We show that MoS sensors can be used to identify the polarity as well as to detect the magnitude of the electric field. The response of the sensor is recorded as the change in the drain current when the electric field is applied. The sensitivity, defined as the percentage change in the drain current, reveals that it has a linear relation with the magnitude of the electric field. Furthermore, the sensitivity is highly dependent on the layer thickness, with the single-layer device being highly sensitive and the sensitivity decreasing with the thickness. We have also compared the electric field sensitivity of MoS devices to that of previously studied graphene devices and found the former to be exceptionally sensitive than the latter for a given electric field magnitude.
在本研究中，我们探究了二硫化钼（MoS）作为电场传感器的适用范围。我们表明，MoS传感器可用于识别电场的极性以及检测电场强度。当施加电场时，传感器的响应记录为漏极电流的变化。灵敏度定义为漏极电流的百分比变化，结果表明它与电场强度呈线性关系。此外，灵敏度高度依赖于层厚度，单层器件高度敏感，且灵敏度随厚度增加而降低。我们还将MoS器件的电场灵敏度与先前研究的石墨烯器件进行了比较，发现在给定电场强度下，前者比后者异常敏感。
