Synthesis of sub-micro-flakes CrSe2 on glass and (110) Si substrates by solvothermal method

Publication date: June 2018 Source:Journal of Solid State Chemistry, Volume 262 Author(s): Qingkai Tang, Changyou Liu, Binbin Zhang, Wanqi Jie Layered structure MX2 (M = transition metal, X = S, Se and Te) chalcogenides have rich physic properties and potential applications. While it is still a challenge to prepare the chalcogenides by solvothermal method. In this work, we reported a new solution method to prepare CrSe2 sub-micro-flakes on different substrates. The surface morphologies, structures and compositions of the precursor CrSe2(en)1/2 and CrSe2 were investigated by SEM, XRD, thermogravimetric, IR and Raman spectra. The CrSe2 flakes with the sizes of 5–15 µm were obtained on both glass and (110) Si crystalline substrates. The formation mechanism of CrSe2 sub-micro-flakes is suggested.

Source: Journal of Solid State Chemistry - March 14, 2018 Category: Chemistry Source Type: research