Ternary copper tungsten selenide nanosheets synthesized by a facile hot-injection method

Transition metal chalcogenides are important materials due to their many useful properties. Here, for the first time, we have successfully synthesized P-Cu2WSe4 (CWSe) nanosheets by a simple and inexpensive hot-injection process. Morphology, structure composition and optical properties of the synthesized nanosheets were analyzed by XRD, TEM, AFM, EDX, FTIR and UV-Visible absorption characterization techniques. Characterization results show that the nanosheets were observed with good crystallinity and lacking of impurity. This work demonstrates that P-Cu2WSe4 nanostructures can be synthesized through a facile and simple hot-injection method. These results lead to the possibility of synthesizing a new generation of nanosheets with minimized reaction time and required pressure as alternative energy conversion materials.