1D metal telluride heterostructure: A review on its synthesis for multifunctional applications

Metal chalcogenide heterostructures have attracted immense attraction due to their excellent optoelectronics, charge transport, sensing, and catalytic properties. Though metal selenide and metal sulfide heterostructures have been studied extensively, telluride-based heterostructures are less explored due to their low abundance. Among all chalcogenide materials, Te is one of the sensitive elements, mainly doped with other metals to give a better-tuned device. The 1-dimensional (1D) heterostructure is a low-dimensional system and widely acts as an interface device for potential use in light-emitting diodes, photodetectors, and other solar cells. The current review mainly focuses on synthesizing 1D metal telluride heterostructures by various methods and their device applications. Several adopted synthesis techniques are discussed, such as hydrothermal, solvothermal, cation exchange, and other colloidal synthesis methods. Depending on the preparation method, many parameters of the synthesized 1D heterostructure exhibit different patterns. Apart from this, the structural analysis and morphological analysis of several heterojunctions are also briefly analyzed. Various applications based on 1D heterostructures were extensively discussed in it. Besides this, the review also provides the versatile potentiality of 1D metal telluride heterostructure in almost every field of optoelectronics.