@ARTICLE{Krukowski_Paweł_Characterisation_2024, author={Krukowski, Paweł and Piskorski, Michał and Rogala, Maciej and Dąbrowski, Paweł and Lutsyk, Iaroslav and Kozłowski, Witold and Kowalczyk, Dorota A. and Krempiński, Patryk and Le Ster, Maxime and Nadolska, Aleksandra and Toczek, Klaudia and Przybysz, Przemysław and Dunal, Rafał and Ryś, Wojciech and Sarkar, Shankhanil and Łuszczyńska, Beata and Kowalczyk, Paweł J.}, volume={32}, number={1}, journal={Opto-Electronics Review}, pages={e147913}, howpublished={online}, year={2024}, publisher={Polish Academy of Sciences (under the auspices of the Committee on Electronics and Telecommunication) and Association of Polish Electrical Engineers in cooperation with Military University of Technology}, abstract={A graphene/NPB structure with Re2O7 as an interfacial layer in the context of its potential use in the design of an organic light-emitting diode (OLED) is investigated. The X-ray photoelectron spectroscopy (XPS) study shows the formation of the Re2O7 phase on a monolayer graphene on quartz during thermal deposition in ultra-high vacuum (UHV). The ultraviolet photoelectron spectroscopy (UPS) study shows an enhancement of the work function of the graphene heterostructure after deposition of the Re2O7 layer up to 5.4 eV. The hole injection barrier between the Re2O7/graphene heterostructure and the N-bis-(1-naphthyl)-N,N-diphenyl-(1,1-biphenyl)-4,4-diamine (NPB) layer was estimated to be 0.35 eV, which is very promising for a good OLED performance.}, type={Article}, title={Characterisation of a graphene/NPB structure with Re2O7 as an interfacial layer for OLED application}, URL={http://journals.pan.pl/Content/129337/PDF-MASTER/OPELRE_2024_32_1_P_Krukowski.pdf}, doi={10.24425/opelre.2024.148441}, }