Brus equation emission energy Δ"E" = "hc"/λ, where c is the speed of light). This is useful for calculating the radius of a quantum dot from experimentally determined parameters. The overall equation is "E", "m"*, and "m"* are unique for each nanocrystal composition. For example, with CdSe nanocrystals: Brus equation The Brus equation can be used to describe the emission energy of quantum dot semiconductor nanocrystals (such as CdSe nanocrystals) in terms of the band gap energy "E", Planck's constant "h", the radius of the quantum dot "r", as well as the effective mass of the excited electron "m"* and of the
Mie–Gruneisen equation of state = 0) we have "A" = 0. Similarly, if we assume "p" = 0 when "V = V" we have "B" = 0. The Mie-Grüneisen equation of state can then be written as where "E" is the internal energy per unit reference volume. Several forms of this equation of state are possible. If we take the first-order term and substitute it into equation (2), we can solve for "C" to get Then we get the following expression for "p" : This is the commonly used first-order Mie-Grüneisen equation of state. Mie–Gruneisen equation of state The Mie-Grüneisen equation of state is