In-situ investigation of stacked heteronanostructures (ISIHNANO)

In-situ investigation of stacked heteronanostructures (ISIHNANO)

2017–2020

Similar to sheets of paper, which can be extracted from a paper stack, some materials in Nature exist in layers which form stacked crystals. The best know example of such a material is graphite, which consists of layers of carbon atoms arranged in a honeycomb pattern. Only a decade ago, it was shown that—similar to an individual paper sheet—such a carbon layer can also exists individually, without the support of the other layers in the stack. This one-atom-thick crystal of carbon atoms, called graphene, and other similar materials have been in the focus of an immense research effort ever since its discovery. Interestingly, such atomic sheets can also be rolled up, again similar to paper, to form tubular structures, such as carbon nanotubes. Also other similarly quasi-one-dimensional structures exist and exhibit interesting properties. During the last few years, a large research effort has started to investigate more complicated structures, which can be formed by combining different building blocks such as graphene and nanotubes. In this project, we bring together two research teams to study properties of such combined structures at atomic level. This combination of expertise allows us to bring our understanding of this new class of structures up to a completely new level, which may pave the way for their use in applications for example in nanoelectronics, thermoelectrics and on other fields.

Funder: Austrian Science Fund

Project identifier: I3181-N36

Principal investigator: J. Kotakoski, in collaboration with Sang Wook Lee (Ewha Womans University, Republic of Korea)

Project publications

2018

Ludacka, U., Monazam, M. R. A., Rentenberger, C., Friedrich, M., Stefanelli, U., Meyer, J. C., & Kotakoski, J. (2018). In situ control of graphene ripples and strain in the electron microscope. npj 2D Materials and Applications, 2(1), Article 25. https://doi.org/10.1038/s41699-018-0069-z

Schleberger, M., & Kotakoski, J. (2018). 2D Material Science: Defect Engineering by Particle Irradiation. Materials - Open Access Journal, 11(10), Article 1885. https://doi.org/10.3390/ma11101885

Hofer, C., Kramberger, C., Monazam, M. R. A., Mangler, C., Mittelberger, A., Argentero, G., Kotakoski, J., & Meyer, J. C. (2018). Revealing the 3D structure of graphene defects. 2D Materials, 5(4), Article 045029. https://doi.org/10.1088/2053-1583/aaded7

Mustonen, K., Hussain, A., Hofer, C., Reza Ahmadpour Monazam, M., Mirzayev, R., Elibol, K., Laiho, P., Mangler, C., Jiang, H., Susi, T., Kauppinen, E. I., Kotakoski, J., & Meyer, J. C. (2018). Atomic-Scale Deformations at the Interface of a Mixed-Dimensional van der Waals Heterostructure. ACS Nano, 12(8), 8512–8519. https://doi.org/10.1021/acsnano.8b04050

Bayer, B. C., Kaindl, R., Reza Ahmadpour Monazam, M., Susi, T., Kotakoski, J., Gupta, T., Eder, D., Waldhauser, W., & Meyer, J. C. (2018). Atomic-Scale in Situ Observations of Crystallization and Restructuring Processes in Two-Dimensional MoS2 Films. ACS Nano, 12(8), 8758–8769. https://doi.org/10.1021/acsnano.8b04945

Tripathi, M., Mittelberger, A., Pike, N., Mangler, C., Meyer, J. C., Verstraete, M., Kotakoski, J., & Susi, T. (2018). Electron-Beam Manipulation of Silicon Dopants in Graphene. Nano Letters, 18(8), 5319–5323. https://doi.org/10.1021/acs.nanolett.8b02406

Susi, T., Scardamaglia, M., Mustonen, K., Tripathi, M., Mittelberger, A., Al-Hada, M., Amati, M., Sezen, H., Zeller, P., Larsen, A. H., Mangler, C., Meyer, J. C., Gregoratti, L., Bittencourt, C., & Kotakoski, J. (2018). Intrinsic core level photoemission of suspended monolayer graphene. Physical Review Materials, 2(7), Article 074005. https://doi.org/10.1103/PhysRevMaterials.2.074005

Tripathi, M., Markevich, A., Böttger, R., Facsko, S., Besley, E., Kotakoski, J., & Susi, T. (2018). Implanting Germanium into Graphene. ACS Nano, 12(5), 4641-4647. https://doi.org/10.1021/acsnano.8b01191

Elibol, K., Susi, T., Argentero, G., Monazam, M. R. A., Pennycook, T. J., Meyer, J. C., & Kotakoski, J. (2018). Atomic Structure of Intrinsic and Electron-Irradiation-Induced Defects in MoTe2. Chemistry of Materials, 30(4), 1230-1238. https://doi.org/10.1021/acs.chemmater.7b03760

2017

Nieman, R., Aquino, A. J. A., Hardcastle, T. P., Kotakoski, J., Susi, T., & Lischka, H. (2017). Structure and electronic states of a graphene double vacancy with an embedded Si dopant. Journal of Chemical Physics, 147(19), Article 194702. https://doi.org/10.1063/1.4999779

Susi, T., Kepaptsoglou, D., Lin, Y.-C., Ramasse, Q. M., Meyer, J. C., Suenaga, K., & Kotakoski, J. (2017). Towards atomically precise manipulation of 2D nanostructures in the electron microscope. 2D Materials, 4(4), Article 042004. https://doi.org/10.1088/2053-1583/aa878f

Zhao, X., Kotakoski, J., Meyer, J. C., Sutter, E., Sutter, P., Krasheninnikov, A. V., Kaiser, U., & Zhou, W. (2017). Engineering and modifying two-dimensional materials by electron beams. MRS Bulletin, 42(9), 667-676. https://doi.org/10.1557/mrs.2017.184