Electronic properties of single crystalline diamond surfaces

摘要

Key parameters of the surface electronic structure of diamond (111), such as surface core level shifts, surface state disperstion, band bending, and electron affinity, are presented and discussed. The first actual value for the negative electron affinity of diamond (111):H 1*1 is measured as X=1.27 eV. A model is given that descrobes the variation in X with hydrogen coverage quantivatively in terms of C-H bond dipoles.