Two-dimensional (2D) semiconductors have attracted important scientific curiosity due to their optical properties. Their functions in optoelectronic units may be additional expanded by combining them to type heterostructures. We characterised a WTe2-2D Te heterostructure by way of native probing of the photocurrent with respect to the magnitude, part, and place. Photocurrent era throughout the system is split into distinct areas: photo-thermoelectric results happen solely on the 2D Te-Au junction space, PV-dominant results on the 2D-WTe2 interface, and thermoelectric-to-photovoltaic crossover results on the WTe2/2D Te overlap space. These totally different photocurrents can’t be fused right into a single area as a result of every space is ruled by totally different era mechanisms, which rely upon the placement of the system. The facility dependence of every photocurrent sort additionally varies throughout the system. Our outcomes point out that cautious materials choice and system construction design, primarily based on the digital, optical, and thermal properties of the channel supplies, are important to keep away from forming totally different optoelectronic puddles that would counteract one another inside a single system.
