Patent ID: 8802480

Claim:
A method for the production of a monograin membrane, comprising the steps of: applying onto a sticky surface of a web-like carrier a layer of alternating non-conductive and conductive web-like layer sections respectively formed of an electrically non-conductive binder and an electrically conductive binder such that the non-conductive and conductive web-like layer sections are adjacent to one another on the sticky surface of the web-like carrier; then, introducing into the electrically non-conductive web-like layer sections through exposed surfaces thereof, grains provided with a coating for forming a p-n transition, such that the grains are disposed at the same level and extend at least to the sticky surface of the web-like carrier; covering the exposed surfaces of the electrically non-conductive web-like layer sections and exposed surfaces of the electrically conductive web-like layer sections in a web-like manner, section by section, with a transparent, electrically conductive material to form electrically conductive, transparent web-like sections of the electrically conductive transparent material that are each electrically connected only to a single underlying electrically conductive web-like layer section while each electrically conductive web-like layer section is electrically connected only to a single web-like, electrically conductive, transparent web-like section; then, removing the carrier with the sticky surface and the directly adjacent p-n coating of the grains to form an exposed grain surface; covering the exposed grain surface in a web-like manner and section by section with an electrically conductive material to form web-like electrically conductive sections each electrically connected only to a single electrically conductive web-like layer section while each electrically conductive web-like layer section is electrically connected only to a single web-like, electrically conductive section, and wherein two outer electrically conductive sections interconnected via an electrically conductive web-like layer section cover different electrically non-conductive web-like layer sections with protruding grains; and further comprising solidifying the electrical non-conductive binder and the electrically conductive binder.