Assembling SnO Nanosheets into Microhydrangeas: Gas Phase Synthesis and Their Optical Property

Abstract

Large scale SnO microhydrangeas are obtained successfully through thermally evaporating of SnO2 powder wrapped by a filter paper at 1050℃ and using gold coated Si wafer as the substrate. The as-obtained SnO microhydrangeas are consisted of many thin nanosheets with the thicknesses of 30-60 nm and the diameters of 500-600 nm. A vapor-liquid-solid (VLS) growth mechanism for the as-synthesized SnO microhydrangeas was proposed based on experimental results. Photoluminescence spectrum (PL) shows that there is a strong sharp ultraviolet emission peak at 390 nm, revealing that these three-dimensional SnO microhydrangeas may have potential applications in optoelectronic fields.

Effect of solvent and environmental conditions on the structural and optical properties of CdS nanoparticles

“…The excellent optical properties of semiconductors make them attractive for different applications, such as biological labels, solar cells, photodetectors and light emitting devices. [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15] Size and surface structure are crucial for adjusting the optical properties of semiconductors. The emission and absorption of semiconductors can be tuned by controlling the size of nanoparticles, and the control of surface structure could signicantly improve the band edge emission and remove the trapping states on the surface of semiconductor.…”

Template‐Free Synthesis of Porous Cu2O Nanospheres at Room Temperature and Investigation on Their Adsorption Property

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Hybrid Ag2O/ZnO Heterostructures

“…In recent years, nanostructured materials have been a wide research focus due to their versatile morphologies and excellent physical and chemical properties superior to the corresponding bulk counterparts [1][2][3][4][5]. Therefore, nanostructured materials have been used widely in gas sensors [6][7][8], photocatalysts [9][10][11][12][13], solar cells [13][14][15], and luminescent materials [16,17].…”