دورية أكاديمية
A Study on the Dynamic Tunning Range of CVD Graphene at Microwave Frequency: Determination, Prediction and Application
| العنوان: | A Study on the Dynamic Tunning Range of CVD Graphene at Microwave Frequency: Determination, Prediction and Application |
|---|---|
| المؤلفون: | Hao Chen, Zhen-Guo Liu, Ming-Yang Geng, Xiang-Yu Meng, Wan-Lin Fu, Lu Ju, Bu-Yun Yu, Wu Yang, Yun-Qian Dai, Wei-Bing Lu |
| المصدر: | Nanomaterials, Vol 12, Iss 24, p 4424 (2022) |
| بيانات النشر: | MDPI AG, 2022. |
| سنة النشر: | 2022 |
| المجموعة: | LCC:Chemistry |
| مصطلحات موضوعية: | graphene, CVD, tunning range, mathematic model, waveguide method, Chemistry, QD1-999 |
| الوصف: | In recent years, graphene has shown great application prospects in tunable microwave devices due to its tunable conductivity. However, the electromagnetic (EM) properties of graphene, especially the dynamic tunning characteristics, are largely dependent on experimental results, and thus are unable to be effectively predicted according to growth parameters, which causes great difficulties in the design of graphene-based tunable microwave devices. In this work, we systematically explored the impact of chemical vapor deposition (CVD) parameters on the dynamic tunning range of graphene. Firstly, through improving the existing waveguide method, the dynamic tunning range of graphene can be measured more accurately. Secondly, a direct mathematical model between growth parameters and the tunning range of graphene is established. Through this, one can easily obtain needed growth parameters for the desired tunning range of graphene. As a verification, a frequency tunable absorber prototype is designed and tested. The good agreement between simulation and experimental results shows the reliability of our mathematic model in the rapid design of graphene-based tunable microwave devices. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2079-4991 |
| العلاقة: | https://www.mdpi.com/2079-4991/12/24/4424Test; https://doaj.org/toc/2079-4991Test |
| DOI: | 10.3390/nano12244424 |
| الوصول الحر: | https://doaj.org/article/686f89dce34c49169192ea6c13941995Test |
| رقم الانضمام: | edsdoj.686f89dce34c49169192ea6c13941995 |
| قاعدة البيانات: | Directory of Open Access Journals |
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