What is the work function of indium tin oxide?
What is the work function of indium tin oxide?
Indium tin oxide (ITO) is usually used as a high work function electrode since it combines good conductivity and transparency in the visible range. High work function electrodes are used to inject holes into the organic materials, hence as high as possible work function values are desirable.
What is the work function of a material?
The work function (W) of a 3D material can be written as W = −eΦ – EF, where the first term is precisely the energy to overcome the surface dipole barrier, approaching a constant at distances far from the surface, and the second term is the energy of the Fermi level of the bulk, from which the electron is removed.
What is the band gap of Ito?
ITO is a well-known n-type degenerate semiconductor4 with an optical band gap of 3.5–4.3 eV5 and has a high transmission in the near infrared and visible regions of the electromagnetic spectrum.
What is metal work function?
The work function (WF) of a metal can be defined as the minimum energy required to extract one electron from a metal. Obviously the WF is one of the fundamental electronic properties of bare and coated metallic surfaces.
What is the work function of aluminum?
4.08
Work Functions for Photoelectric Effect
| Element | Work Function(eV) |
|---|---|
| Aluminum | 4.08 |
| Beryllium | 5.0 |
| Cadmium | 4.07 |
| Calcium | 2.9 |
What is the work function of silicon?
In solid-state physics, the work function (sometimes spelled workfunction) is the minimum thermodynamic work (i.e., energy) needed to remove an electron from a solid to a point in the vacuum immediately outside the solid surface….Work functions of elements.
| Ag | Se |
|---|---|
| 4.26 – 4.74 | 5.9 |
| Al | Si |
| 4.06 – 4.26 | 4.60 – 4.85 |
| As | Sm |
Does work function depend on temperature?
The magnitude of the temperature dependence increases with decreasing atomic density of the lattice plane. A strongly nonlinear dependence of the work function is observed for W(100).