Two possible conduction bands are shown in the Ek diagram be

Two possible conduction bands are shown in the E-k diagram below. State which band will result in
the heavier electron effective mass and state why.

Solution

An E-k diagram shows characteristics of a particular semiconductor material. It shows the relationship between the energy and momentum of available quantum mechanical states for electrons in the material.

in E-K diagram The effective mass of electrons and holes in the material is given by the curvature of each of the bands.