Abstract
The main goal of this project is to understand the effects of interlayer coupling in heterostructures of two-dimensional (2D) semiconducting transition metal dichalcogenides (TMDs) and use this knowledge to form structures and devices with desired optical response. The intrinsic semiconducting character of many TMDs, direct band gap in monolayer limit and suppressed screening effect in atomically thin form, makes these materials ideal building blocks for developing optoelectronic applications, including photodetectors, photodiodes, light-emitting devices, and photovoltaic cells. The major experimental effort in this project will be a development of capabilities to measure specific optical response via reflectivity, photoluminescence and Raman spectroscopy measurements. The optical response measurements will be directly correlated to the interlayer coupling in heterostructures. The optical response will be also investigated by pump-probe measurements.
Publications
S. Tanaka, T. Yoshida, K. Watanabe, Y. Matsumoto, T. Yasuike, D. Novko, M. Petrović, M. KraljUltrafast Plasmonic Response Ensured by Atomic Scale Confinement
ACS Photonics. 9(3), 837–845 (2022)
DOI: 10.1021/acsphotonics.1c01454 20220320
S. Tanaka, T. Yoshida, K. Watanabe, Y. Matsumoto, T. Yasuike, M. Petrović, M. KraljLinewidth Narrowing with Ultimate Confinement of an Alkali Multipole Plasmon by Modifying Surface Electronic Wave Functions with Two-Dimensional Materials
Physical Review Letters 125 (2020) 126802
DOI: 10.1103/PhysRevLett.125.126802 20200918
T. Yoshida, K. Watanabe, M. Petrović i M. KraljAnomalous Temperature Dependence of Exciton Spectral Diffusion in Tetracene Thin Film
The Journal of Physical Chemistry Letters 11 (2020) 5248
DOI: 10.1021/acs.jpclett.0c01537 20200618
Borna Pielić, Joshua Hall, Vito Despoja, Iva Šrut Rakić, Marin Petrović, Ali Sohani, Carsten Busse, Thomas Michely, Marko KraljSulfur Structures on Bare and Graphene-Covered Ir(111),
J. Phys. Chem. C 2020, 124, 12, 6659-6668
DOI: 10.1021/acs.jpcc.9b11641 20200305
Dino Novko and Marko KraljPhonon-assisted processes in the ultraviolet-transient optical response of graphene
npj 2D Materials and Applications 3, 48 (2019).
DOI: 10.1038/s41699-019-0131-5 20191213
I. Delač Marion, D. Čapeta, B. Pielić, F. Faraguna, A. Gallardo, P. Pou, B. Biel, N. Vujičić, and M. KraljAtomic-scale defects and electronic properties of a transferred synthesized MoS2 monolayer
Nanotechnology 29, 305703 (2018)
DOI: 10.1088/1361-6528/aac27d 20180522
I. Niehues, A. Blob, T. Stiehm, R. Schmidt, V. Jadriško, B. Radatović, D. Čapeta, M. Kralj, S. Michaelis de Vasconcellos, and R. BratschitschStrain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition
2D Mater. 5, 031003 (2018)
DOI: 10.1088/2053-1583/aaba9a 20180416
N. Saigal, I. Wielert, D. Čapeta, N. Vujičić, B.V. Senkovskiy, M. Hell, M. Kralj, and A. GrüneisEffect of lithium doping on the optical properties of monolayer MoS2
Appl. Phys. Lett. 112, 121902 (5pp) (2018)
DOI: 10.1063/1.5021629 20180320
J. Hall, B. Pielić, C. Murray, W. Jolie, T. Wekking, C. Busse, M. Kralj and T. MichelyMolecular beam epitaxy of quasi-freestanding transition metal disulphide monolayers on van der Waals substrate: A growth study
2D Materials 5, 025005 (11pp) (2018)
DOI: 10.1088/2053-1583/aaa1c5 20180119
