The chemiabsorption of benzoic acid derivatives has been found to increase this value in gallium arsenide. This quantity also appears in an equation relating the current density to the square of the temperature. In addition to the Richardson-Dushman equation, this value is also central to the Edison effect, in which an input in heat causes thermionic (*) emission. Terbium and lithium have a similar value for this quantity, about 3 electron-Volts, and this quantity can be decreased for metals that have been coated with oxides. On the other hand, it tends to be largest for metals with closely packed lattice structures. Given by Planck's constant times the cutoff freque
The chemiabsorption of benzoic acid derivatives has been found to increase this value in gallium arsenide. This quantity also appears in an equation relating the current density to the square of the temperature. In addition to the Richardson-Dushman equation, this value is also central to the Edison effect, in which an input in heat causes thermionic (*) emission. Terbium and lithium have a similar value for this quantity, about 3 electron-Volts, and this quantity can be decreased for metals that have been coated with oxides. On the other hand, it tends to be largest for metals with closely packed lattice structures. Given by Planck's constant times the cutoff frequency, FTP, name this value, central to the photoelectric effect, giving the minimum amount of energy needed for an electron to be ejected from a metal.
The chemiabsorption of benzoic acid derivatives has been found to increase this value in gallium arsenide.