2016
DOI: 10.1002/ijch.201600121
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Structure and Stability of GaS Fullerenes and Nanotubes

Abstract: Recently, polyhedral; octahedral fullerene‐like structures and cylindrical nanotubes of gallium sulfide have been produced in far from equilibrium conditions using a high power solar synthesis and Pb as growth promoter. Their exact atomistic structure and their formation path remain unknown. Here, the models of fullerenes and nanotubes are designed for both stable β‐ and metastable γ‐polymorphs of GaS. Their stability and electronic properties were investigated as a function of both the morphology and size usi… Show more

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Cited by 7 publications
(5 citation statements)
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“…Of fundamental interest is the appearance of an electron–hole liquid condensate state at elevated temperature T = 130 K in bulk GaS . Similar to MoS 2 , , SnS 2, and WS 2 , GaS sheets roll easily to form nanotubes. , Other 1D nanostructures of GaS, such as nanohorns and nanobelts, have been demonstrated. While the nanobelts clearly show a ribbon-like stacking of GaS sheets with c -axis perpendicular to the axis of the 1D nanostructure, reported nanowires have so far not been sufficiently characterized for an unambiguous assignment of the crystal polymorph ( e .…”
mentioning
confidence: 99%
“…Of fundamental interest is the appearance of an electron–hole liquid condensate state at elevated temperature T = 130 K in bulk GaS . Similar to MoS 2 , , SnS 2, and WS 2 , GaS sheets roll easily to form nanotubes. , Other 1D nanostructures of GaS, such as nanohorns and nanobelts, have been demonstrated. While the nanobelts clearly show a ribbon-like stacking of GaS sheets with c -axis perpendicular to the axis of the 1D nanostructure, reported nanowires have so far not been sufficiently characterized for an unambiguous assignment of the crystal polymorph ( e .…”
mentioning
confidence: 99%
“…Максимум энергии состояний валентной зоны находится в точке Ŵ (как и в объемном кристалле), а минимум энергии состояний зоны проводимости, по-видимому, находится на направлении ŴK примерно в точке с координатами (0.1, 0.1, 0), хотя очень близкое по энергии состояние имеется и на направлении ŴM в точке с примерными координатами (0.1, 0, 0). Полученные нами результаты хорошо согласуются с результатами ранее опубликованных расчетов [14][15][16] зонной структуры монослоев. Ширины непрямых запрещенных зон монослоев составляют 3.30 (GaS) и 3.12 (GaSe) eV, что заметно больше соответствующих величин для объемных кристаллов.…”
Section: методика расчетаunclassified
“…Ширины непрямых запрещенных зон монослоев составляют 3.30 (GaS) и 3.12 (GaSe) eV, что заметно больше соответствующих величин для объемных кристаллов. Этот эффект связан с так называемым " квантовым ограничением" (quantum confinement [16]…”
Section: методика расчетаunclassified
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