On-chip Heaters for Tension Tuning of Graphene Nanodrums.,Nano Letters

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On-chip Heaters for Tension Tuning of Graphene Nanodrums.
Nano Letters ( IF 9.6 ) Pub Date : 2018-04-17 , DOI: 10.1021/acs.nanolett.7b05358
Dejan Davidovikj ₁ , Menno Poot _{1,

2,

3} , Santiago J Cartamil-Bueno ₁ , Herre S J van der Zant ₁ , Peter G Steeneken _{1,

4}

Affiliation

For the study and application of graphene membranes, it is essential to have means to control their resonance frequency and temperature. Here, we present an on-chip heater platform for local tuning of in-plane tension in graphene mechanical resonators. By Joule heating of a metallic suspension ring we show thermomechanical resonance frequency tuning in a few-layer (FL) graphene nanodrum, which is accompanied by an increase in its quality factor, which we attribute to the increase of the in-plane tension. The in situ control of temperature, in-plane tension, resonance frequency, and quality factor of suspended two-dimensional (2D) nanodrums makes this device a unique platform for investigating the origin of dissipation in these ultrathin structures and can be of fundamental importance for studying the thermal properties of 2D materials. Moreover, by simultaneously controlling the heater and the backgate voltage, we can independently control the resonance frequency and quality factor, which is of great importance for applications in sensors and resonant mechanical filters.

中文翻译：

用于石墨烯纳米鼓张力调节的片上加热器。

对于石墨烯膜的研究和应用，必须具有控制其共振频率和温度的手段。在这里，我们介绍了一个片上加热器平台，用于局部调整石墨烯机械谐振器中的平面内张力。通过对金属悬挂环的焦耳加热，我们显示了在几层（FL）石墨烯纳米鼓中的热机械共振频率调谐，其伴随着其品质因数的增加，这归因于面内张力的增加。对悬浮的二维（2D）纳米鼓的温度，面内张力，共振频率和品质因数的原位控制使该设备成为研究这些超薄结构中耗散起源的独特平台，并且对于控制超薄结构具有重要意义。研究2D材料的热性能。而且，

更新日期：2018-04-13

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