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
Homogeneous differential equation rule: thus transforming the original differential equation into the separable form this form can now be integrated directly (see ordinary differential equation). The equations in this discussion are not to be used as formulary for solutions; they are shown just to demonstrate the method of solution. A first order differential equation of the form ("a", "b", "c", "e", "f", "g" are all constants) where "af" ≠ "be" can be transformed into a homogeneous type by a linear transformation of both variables (formula_17 and formula_18 are constants): A linear differential equation is homogeneous if it is a homogeneous linear equation in