Dipanjan Gope, Albert E. Ruehli, et al.
IEEE T-MTT
We report the first XPS data for ammonia adsorption, condensation and decomposition on a W(110) surface. Monolayer, "second layer" and multilayer NH3 as well as NH2, NH and N species can be characterized by a specific N(1s) electron binding energy. We discuss the observed binding energies within a thermodynamic framework, using the "equivalent core approximation". This model has been previously successfully applied to core level binding energies of gaseous molecules and solids. The agreement between calculated and experimental N(1s) binding energies for some species is excellent, and we conclude that for the considered adsorbates the variation of the N(1s) binding energies is primarily determined by the ground state properties rather than by different relaxation energies in the final state. We also briefly discuss the activity of the W(110) face towards NH3 decomposition and also present some data for NH3 dissociation on an oxygen predosed surface. © 1982.
Dipanjan Gope, Albert E. Ruehli, et al.
IEEE T-MTT
Michael Ray, Yves C. Martin
Proceedings of SPIE - The International Society for Optical Engineering
Douglass S. Kalika, David W. Giles, et al.
Journal of Rheology
Min Yang, Jeremy Schaub, et al.
Technical Digest-International Electron Devices Meeting