Low work function of the (1000) Ca2N surface
M. A. Uijttewaal, G. A. de Wijs, R. A. de Groot
Abstract
Polymer diodes require cathodes that do not corrode the polymer but do have low work function to minimize the electron injection barrier. First-principles calculations demonstrate that the work function of the (1000) surface of the compound Ca2N is half an eV lower than that of the elemental metal Ca (2.35 vs. 2.87 eV). Moreover its reactivity is expected to be smaller. This makes Ca2N an interesting candidate to replace calcium as cathode material for polymer light emitting diode devices.
Create a lesson
Related papers
Finite-element reconstruction of molten-zone dynamics and chemical segregation in optical floating-zone grown Ni--Mn--Ga
Denys Musiienko, Taras Kovaliuk, Petr Harcuba et al.
The polar discontinuity picture in nickelate superlattices: comparison of the insulating and metallic phases
Edith Simmen, Jonathan Amara, Philippe Ghosez et al.
Ferroelectric control of magnetic coupling in a Cr dimer adsorbed on α-In2Se3
J. F. Ospina, S. Di Napoli, M. A. Barral
Heat Transport Mechanisms in MOF-5
Zezhu Zeng, Xia Liang, Hengtai Zheng et al.
Zero-Point Renormalization Reshapes the Shift Current: The Role of Electron-Phonon Coupling
Yang Li, Zuzhang Lin, Zhikuan Wang et al.
Half-integer quantum anomalous Hall effect in MnBi2Te4 via non-magnetic extension
Igor P. Rusinov, Tatiana V. Menshchikova, Evgueni V. Chulkov