%0 Journal Article %1 C9RA04537F %A Hrubý, Jakub %A Santana, Vinicius T. %A Kostiuk, Dmytro %A Bouček, Martin %A Lenz, Samuel %A Kern, Michal %A Šiffalovič, Peter %A van Slageren, Joris %A Neugebauer, Petr %D 2019 %I The Royal Society of Chemistry %J RSC Adv. %K myown %N 42 %P 24066-24073 %R 10.1039/C9RA04537F %T A graphene-based hybrid material with quantum bits prepared by the double Langmuir–Schaefer method %U http://dx.doi.org/10.1039/C9RA04537F %V 9 %X The scalability and stability of molecular qubits deposited on surfaces is a crucial step for incorporating them into upcoming electronic devices. Herein, we report on the preparation and characterisation of a molecular quantum bit, copper(ii)dibenzoylmethane Cu(dbm)2, deposited by a modified Langmuir–Schaefer (LS) technique onto a graphene-based substrate. A double LS deposition was used for the preparation of a few-layer-graphene (FLG) on a Si/SiO2 substrate with subsequent deposition of the molecules. Magnetic properties were probed by high-frequency electron spin resonance (HF-ESR) spectroscopy and found maintained after deposition. Additional spectroscopic and imaging techniques, such as Raman spectroscopy (RS), X-ray photoelectron spectroscopy (XPS), atomic force microscopy (AFM), and scanning electron microscopy (SEM) were performed to characterise the deposited sample. Our approach demonstrated the possibility to utilise a controlled wet-chemistry protocol to prepare an array of potential quantum bits on a disordered graphene-based substrate. The deployed spectroscopic techniques showed unambiguously the robustness of our studied system with a potential to fabricate large-scale, intact, and stable quantum bits.

@article{C9RA04537F, abstract = {The scalability and stability of molecular qubits deposited on surfaces is a crucial step for incorporating them into upcoming electronic devices. Herein{,} we report on the preparation and characterisation of a molecular quantum bit{,} copper(ii)dibenzoylmethane [Cu(dbm)2]{,} deposited by a modified Langmuir–Schaefer (LS) technique onto a graphene-based substrate. A double LS deposition was used for the preparation of a few-layer-graphene (FLG) on a Si/SiO2 substrate with subsequent deposition of the molecules. Magnetic properties were probed by high-frequency electron spin resonance (HF-ESR) spectroscopy and found maintained after deposition. Additional spectroscopic and imaging techniques{,} such as Raman spectroscopy (RS){,} X-ray photoelectron spectroscopy (XPS){,} atomic force microscopy (AFM){,} and scanning electron microscopy (SEM) were performed to characterise the deposited sample. Our approach demonstrated the possibility to utilise a controlled wet-chemistry protocol to prepare an array of potential quantum bits on a disordered graphene-based substrate. The deployed spectroscopic techniques showed unambiguously the robustness of our studied system with a potential to fabricate large-scale{,} intact{,} and stable quantum bits.}, added-at = {2020-10-12T12:54:01.000+0200}, author = {Hrubý, Jakub and Santana, Vinicius T. and Kostiuk, Dmytro and Bouček, Martin and Lenz, Samuel and Kern, Michal and Šiffalovič, Peter and van Slageren, Joris and Neugebauer, Petr}, biburl = {https://puma.ub.uni-stuttgart.de/bibtex/2b323cac0accb1edcd9ed210f213b8a1f/michalkern}, doi = {10.1039/C9RA04537F}, interhash = {c33b81c875dcca43808cfa6277dfaee4}, intrahash = {b323cac0accb1edcd9ed210f213b8a1f}, journal = {RSC Adv.}, keywords = {myown}, number = 42, pages = {24066-24073}, publisher = {The Royal Society of Chemistry}, timestamp = {2020-10-12T10:54:01.000+0200}, title = {A graphene-based hybrid material with quantum bits prepared by the double Langmuir–Schaefer method}, url = {http://dx.doi.org/10.1039/C9RA04537F}, volume = 9, year = 2019 }