Making graphene visible

By P. Blake, K. Novoselov, A. C. Castro Neto, D. Jiang, R. Yang, T. Booth, A.K. Geim, Ernie W. Hill. Applied Physics Letters, 2007

1,953 citations recorded by the source corpus.

Microfabrication of graphene devices used in many experimental studies currently relies on the fact that graphene crystallites can be visualized using optical microscopy if prepared on top of Si wafers with a certain thickness of SiO2. The authors study graphene’s visibility and show that it depends strongly on both thickness of SiO2 and light wavelength. They have found that by using monochromatic illumination, graphene can be isolated for any SiO2 thickness, albeit 300nm (the current standard) and, especially, ≈100nm are most suitable for its visual detection. By using a Fresnel-law-based model, they quantitatively describe the experimental data.

Subfields: Biomedical Engineering, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/18b42b3b05b38a1de7e1ec2e94721b8e7961230a

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Biomedical Engineering

1. K. Novoselov
2. N. M. R. Peres
3. Phaedon Avouris
4. Jonathan N. Coleman
5. Andrea C. Ferrari
6. A. Castellanos-Gómez
7. Rodney S. Ruoff
8. Herre S. J. van der Zant

In Materials Chemistry

1. K. Novoselov
2. N. M. R. Peres
3. Andrea C. Ferrari
4. A. Castellanos-Gómez
5. A.K. Geim
6. Francisco Guinea
7. A. C. Castro Neto
8. A. Di Bartolomeo

Citations in the corpus

• G' band Raman spectra of single, double and triple layer graphene (2009, background): “[5] Blake P, Hill EW, Castro Neto AH, Novoselov KS, et al.”
• Mechanics of freely‐suspended ultrathin layered materials (2014, background): “” Annalen der Physik, (2015) Vol.527, Iss. 1-2, 27–44. doi: 10.1002/andp.201400153 Which has been published in final form at: http://onlinelibrary.wiley.com/doi/10.1002/andp.201400153/full 4 graphene [18, 19, 20, 21, 22], graphene oxide [23], MoS 2 [24, 25, 26], NbSe 2 [24, 27], WSe 2 [26, 27], TaS ”
• Raman spectroscopy and imaging of graphene (2008, background): “3 is the extinction coefficient of graphite.([45]) However, we find that the G-band”
• Giant tunneling magnetoresistance in spin-filter van der Waals heterostructures (2018, methodology): “ engineer artificial heterostructures without the need for lattice matching. They thus provide a unique platform for exploring emerging phenomena and device function at the designed atomic interfaces (1, 2). However, magnetic memory and processing applications were out of reach in van der Waals (vdW”