التفاصيل البيبلوغرافية
| العنوان: |
Optimising graphene visibility in van der Waals heterostructures. |
| المؤلفون: |
Thanmay S Menon1, Simli Mishra2, Vidhu Catherine Antony3, Kiranmayi Dixit4,5, Saloni Kakkar6, Tanweer Ahmed6, Saurav Islam6, Aditya Jayaraman6, Kimberly Hsieh6,7 kimberly@iisc.ac.in, Paritosh Karnatak6,7,8 paritosh@iisc.ac.in, Arindam Ghosh6,9 |
| المصدر: |
Nanotechnology. 9/27/2019, Vol. 30 Issue 39, p1-1. 1p. |
| مصطلحات موضوعية: |
*HETEROSTRUCTURES, *SPECTRAL sensitivity, *VISIBILITY, *GRAPHENE |
| مستخلص: |
Graphene constitutes one of the key elements in many functional van der Waals heterostructures. However, it has negligible optical visibility due to its monolayer nature. Here we study the visibility of graphene in various van der Waals heterostructures and include the effects of the source spectrum, oblique incidence and the spectral sensitivity of the detector to obtain a realistic model. A visibility experiment is performed at different wavelengths, resulting in a very good agreement with our calculations. This allows us to reliably predict the conditions for better visibility of graphene in van der Waals heterostructures. The framework and the codes provided in this work can be extended to study the visibility of any 2D material within an arbitrary van der Waals heterostructure. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
Academic Search Index |
