Heterojunction Posted on 15th November 20156th September 2020 by ThePD (The Project Definition) A Heterojunction is the interface of a region of electrical contact between two different semiconductor materials. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in Technology and tagged electrical. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.