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2021
Ehlen, Niels 
ORCID: 0000-0002-8581-8359
(2021).
Electronic Structure Engineering via Functionalization of Two-Dimensional Quantum Materials.
PhD thesis, Universität zu Köln.
2018
Hell, Martin G., Ehlen, Niels, Senkovskiy, Boris V., Hasdeo, Eddwi H., Fedorov, Alexander, Dombrowski, Daniela, Busse, Carsten, Michely, Thomas, di Santo, Giovanni, Petaccia, Luca, Saito, Riichiro and Grüneis, Alexander
(2018).
Resonance Raman spectrum of doped epitaxial graphene at the Lifshitz transition.
Nano letters.
ACS Publications.
ISSN 1530-6992
Senkovskiy, Boris V., Usachov, Dmitry Yu., Fedorov, Alexander V., Haberer, Danny, Ehlen, Niels, Fischer, Felix R. and Gruneis, Alexander
(2018).
Finding the hidden valence band of N=7 armchair graphene nanoribbons with angle-resolved photoemission spectroscopy.
2D Materials.
IOP Publishing.
ISSN 2053-1583
2017
Nikonov, Konstantin, Ehlen, Niels, Senkovskiy, Boris, Saigal, Nihit, Fedorov, Alexander, Nefedov, Alexei, Wöll, Christoph, di Santo, Giovanni, Petaccia, Luca and Grüneis, Alexander
(2017).
Synthesis and spectroscopic characterization of
alkali-metal intercalated ZrSe2.
Dalton Transactions, 47.
pp. 2986-2991.
RSC publishing.
ISSN 1477-9226