TY - JOUR
T1 - Synthesis and Characterization of Highly Crystalline Vertically Aligned WSe2 Nanosheets
AU - Sierra Castillo, Ayrton
AU - Haye, Emile
AU - Acosta, Selene
AU - Bittencourt, Carla
AU - Colomer, Jean-François
PY - 2020/1/27
Y1 - 2020/1/27
N2 - Here, we report on the synthesis of tungsten diselenide (WSe2) nanosheets using an atmospheric pressure chemical vapor deposition technique via the rapid selenization of thin tungsten films. The morphology and the structure, as well as the optical properties, of the so-produced material have been studied using electron microscopies, X-ray photoelectron spectroscopy, photoluminescence, UV–visible and Raman spectroscopies, and X-ray diffraction. These studies confirmed the high crystallinity, quality, purity, and orientation of the WSe2 nanosheets, in addition to the unexpected presence of mixed phases, instead of only the most thermodynamically stable 2H phase. The synthesized material might be useful for applications such as gas sensing or for hydrogen evolution reaction catalysis.
AB - Here, we report on the synthesis of tungsten diselenide (WSe2) nanosheets using an atmospheric pressure chemical vapor deposition technique via the rapid selenization of thin tungsten films. The morphology and the structure, as well as the optical properties, of the so-produced material have been studied using electron microscopies, X-ray photoelectron spectroscopy, photoluminescence, UV–visible and Raman spectroscopies, and X-ray diffraction. These studies confirmed the high crystallinity, quality, purity, and orientation of the WSe2 nanosheets, in addition to the unexpected presence of mixed phases, instead of only the most thermodynamically stable 2H phase. The synthesized material might be useful for applications such as gas sensing or for hydrogen evolution reaction catalysis.
KW - tungsten diselenide
KW - nanosheets
KW - chemical vapor deposition
KW - Nanosheets
KW - Tungsten diselenide
KW - Chemical vapor deposition
UR - http://www.scopus.com/inward/record.url?scp=85081546206&partnerID=8YFLogxK
U2 - 10.3390/app10030874
DO - 10.3390/app10030874
M3 - Article
VL - 10
JO - Applied Sciences
JF - Applied Sciences
SN - 2076-3417
IS - 3
M1 - 874
ER -