Rapid synthesis and characterization of nearly dispersed marcasite CuSe2 and berzelianite Cu2Se crystallites using the chemical reduction process
Source abstract
Abstract
Abstract Nearly dispersed marcasite CuSe 2 (m-CuSe 2 ) and berzelianite Cu 2 Se (b-CuSe 2 ) crystals were successfully synthesized using copper and selenium-triethylene glycol (TEG) solution thermal decomposition using triethylenetetramine (TETA) as the reducing agent and polyvinylpyrrolidone (PVP) as the capping agent. The crystalline structure, electronic and copper selenide particles optical characterization were investigated using X-ray diffractometer (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and UV–vis absorbance spectra. The TETA addition effects on crystal phase development and morphology were investigated. The obtained copper selenides are m-CuSe 2 and b-CuSe 2 for the samples added with TETA of 0.007 M and 0.147 M, respectively. The measured energy gaps for m-CuSe 2 and b-CuSe 2 are 1.49 eV and 1.98 eV, respectively. The marcasite CuSe 2 can be obtained by annealing krutaite CuSe 2 at a higher temperature.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Chalcogenide Semiconductor Thin Films · Quantum Dots Synthesis And Properties · Copper-based nanomaterials and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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