Tuning photoluminescence of liquid crystals doped ZnS nanoflakes

Chemical synthesis of 3D copper sulfide with different morphologies for high performance supercapacitors application

“…Metal suldes, such as lead suldes, zinc suldes, cadmium suldes, copper suldes, bismuth suldes, and nickel suldes, are inorganic materials that have attracted the attention of researchers for their unique properties and potential applications. [18][19][20][21][22][23] Among these materials, copper sulde (Cu x S with x ¼ 1-2) is a transition metal chalcogenide that exhibits different stoichiometric forms according to its crystal structure ranging from orthogonal to hexagonal. The shape, size, stoichiometric composition, and crystal structure generally control the optical and electrical properties of copper sulde.…”

Comment to the article “Analysis of photoluminescence, UV absorbance, optical band gap and threshold voltage of TiO2 nanoparticles dispersed in high birefringence nematic liquid crystal towards its application in display and photovoltaic devices” [J. Lumin. 192 (2017) 33–39]

“…3, it is also clear that pure nematic liquid crystals does not have any emission of light. Authors should keep in mind that nematic liquid crystals as well as other thermotropic liquid crystalline materials emit visible light, though intensity is low [2][3][4][5][6][7]. The authors should take more care to record photoluminescence spectra of pure nematic liquid crystals.…”