Solve this: In the energy band diagram of a material shown below, the open circles and filled circles denote holes and electrons respectively.The material is (1) An n-type semiconductor (2) A p-type semiconductor (3) An insulator (4)A metal Share with your friends Share 0 Aarushi Mishra answered this It is a p-type semi conductor. As electrons from valance band will jump to acceptor energy level, which is shown just above valance band, thus creating holes in valance band.This way number of holes will be>> number of electrons.One can see in the figure that number of holes will be>> number of electrons.Hence it is p-type semi conductor 1 View Full Answer Siva Sekhar B R answered this Acceptor energy level just above valance band So it is p-type semi conductor 0