Patent ID: 8888914

Claim:
A photoelectric surface member manufacturing method of manufacturing a photoelectric surface member for forming a photoelectric surface which emits photoelectrons excited by incident light, comprising the steps of: preparing a substrate for crystal growth which is a crystalline substance with the main surface in the (111) plane orientation; forming a buffer layer along the main surface of said substrate for crystal growth; forming a nitride semiconductor crystal layer as a light absorbing layer on said buffer layer by crystal growth in the Group III element surface (positive c polar) direction using a Group III-V nitride type semiconductor material; forming an adhesive layer on a first surface which is a positive c polar surface of said nitride semiconductor crystal layer; adhesively fixing a glass substrate which is formed to transmit incident light onto said adhesive layer; removing said substrate for crystal growth to obtain said buffer layer with a negative c polar surface; removing said buffer layer to obtain said nitride semiconductor crystal layer having a second surface which is a negative c polar surface after the step of removing said substrate for crystal growth; and forming a layer containing alkali metal on the second surface of said nitride semiconductor crystal layer, wherein in said nitride semiconductor crystal layer, the first surface is an incidence surface where the light transmitted through the glass substrate enters, and the second surface is an emission surface which emits photoelectrons excited by the incident light through the layer containing alkali metal.