CC BY
20HiLASE-I-1
Two-dimensional material printing via blister-based laser-induced forward-transfer
N. Goodfriend1, A.V. Bulgakov1, N.M. Bulgakova1, E.E.B. Campbell2, O. Nerushev2, T. Mocek1, R. Kitaura3, T. Hotta3
1HiLASE, Centre, Institute of Physics of the Czech Academy of Sciences, Dolni Brezany, Czech Republic
2University of Edinburgh, School of Chemistry, Edinburgh, United Kingdom 3Nagoya University, Department of Chemistry, Nagoya, Japan
Fundamental research of two dimensional materials such as graphene and transition metal dichalcogenides (TMDs) is demonstrating their potential for opto-electronics with specific focus on stacked heterostructures [1]. However, positioning of the nanomaterials in a clean and rapidly reproducible method is yet to be established. The issue of contamination, structural damage, induced stress regions, and precise placement is slowing the advancement of this field. The work presented will focus on the recent advancement of blister-based laser-induced forward-transfer (BB LIFT) as a non-contact or chemical approach to the transfer of these nano-materials.
The mechanism utilises a femtosecond laser to cause confined ablation at the interface of a transparent material and opaque metal film. The ablated material causes the rapid expansion of the metal film into a blister which ejects the surface material in a comparatively linear fashion, enabling its use as a printing technique. BB LIFT has been shown to gently desorb nanostructures from the scale of 150 nm [2] to fragile molecules which heat or laser irradiation would otherwise cause structural changes to the molecule [3]. It has also been demonstrated that two-dimensional materials can be transferred without inducing structural damage as determined by AFM and Raman spectroscopy of the TMDs MoS2 and MoSe2. Figure 1 displays some examples of MoSe2 transferred from a ~250 nm titanium surface irradiated by a 120 fs 800 nm laser pulse over a distance of 2 mm. The presented work will focus on the advancements in this technique, expanding the array of transferred two-dimensional materials as well as working towards rapid generation of hetero-structures.
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Fig. 1.
References
[1] P. Miró, M. Audiffred, and T. Heine, "An atlas of two-dimensional materials," Chem. Soc. Rev. 43, 6537 (2014).
[2] A. V. Bulgakov, N. Goodfriend, O. Nerushev, N. M. Bulgakova, S. V. Starinskiy, Y. G. Shukhov, and E. E. B. Campbell, "Laser-induced transfer of nanoparticles for gas-phase analysis," J. Opt. Soc. Am. B 31, C15 (2014).
[3] N. T. Goodfriend, S. Y. Heng, O. A. Nerushev, A. V Gromov, A. V. Bulgakov, M. Okada, R. Kitaura, J. H. Warner, H. Shinohara, and E. E. B. Campbell, "Blister-based-laser-induced-forward-transfer: A non-contact, dry laser-based transfer method for nanomaterials," Nanotechnology 28, 384301 (2018).
