Control of the micrometric scale morphology of silicon nanowires through ion irradiation-induced metal dewetting

Savio, R. Lo; Repetto, Luca; Guida, Patrizia; Angeli, Elena; Firpo, Giuseppe; Volpe, Andrea; Ierardi, Vincenzo; Valbusa, U.

doi:10.1016/j.ssc.2016.04.023

Cited by 11 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…For a thicker film, the dewetting process can be performed at a higher energy, and particles with a micrometer scale are produced at all the corresponding scanning speeds. For a thinner film, particles can be obtained at a lower energy, and the particle size (nanometer) depends on the particular scanning speed applied [35]. Overall, the results show that the particle size decreases with an increasing laser energy and a decreasing film thickness.…”

Section: Morphology Of C Gloeosporioides Conidiamentioning

confidence: 79%

Antifungal Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Lin

Wang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

Silver particles were prepared by dewetting Ag films coated on glass using a fiber laser. The size of the particles was controlled in the range of 92 nm–1.2 μm by adjusting the thickness of the Ag film. The structural properties and surface roughness of the particles were evaluated by means of scanning electron microscopy. In addition, the antifungal activity of the Ag particles was examined using spore suspensions of Colletotrichum gloeosporioides. It is shown that particles with a size of 1.2 μm achieved 100% inhibition of conidia growth of C. gloeosporioides after a contact time of just 5 min. Furthermore, the smaller particles also achieved good antifungal activity given a longer contact time. Similar results were observed for spore germination and pathogenicity tests performed on mango fruit and leaves. Overall, the results confirm that Ag particles have an excellent antifungal effect on C. gloeosporioides.

show abstract

Section: Morphology Of C Gloeosporioides Conidiamentioning

confidence: 79%

Antifungal Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Lin

Wang

et al. 2020

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…For a thicker film, the dewetting process can be performed at a higher energy, and particles with a micrometer scale are produced at all the corresponding scanning speeds. For a thinner film, particles can be obtained at a lower energy, and the particle size (nanometer) depends on the particular scanning speed applied [32]. Overall, the results show that the particle size decreases with an increasing laser energy and a decreasing film thickness.…”

Section: Rt-pcr Analysis Of Gene Expressionmentioning

confidence: 79%

Antibacterial Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Wang¹,

Wang²,

Lin³

et al. 2020

Preprint

View full text Add to dashboard Cite

Silver particles are prepared by dewetting Ag ﬁlms coated on glass using a fiber laser. The size of the particles is controlled in the range of 92 nm ~ 1.2 μm by adjusting the thickness of the Ag film. The structural properties and surface roughness of the particles are evaluated by means of scanning electron microscopy. In addition, the antifungal activity of the Ag particles is examined using spore suspensions of Colletotrichum gloeosporioides. It is shown that the particles with a size of 1.2 μm achieve 100% inhibition of the conidia growth of the Colletotrichum gloeosporioides after a contact time of just 5 min. Furthermore, the smaller particles also achieve a good antibacterial activity given a longer contact time. Similar results are observed in spore germination and pathogenicity tests performed on mango fruit and leaves. Overall, the results confirm that the Ag particles have an excellent antifungal effect on Colletotrichum gloeosporioides.

show abstract

“…Это позволяет получать частицы размером от 10 до 50 нм в зависимости от толщины исходной пленки, температуры и времени формирования. Кроме того, недавно было показано, что облучение быстрыми электронами [10] и ионами [11,12] тонких металлических плeнок на поверхности различных подложек также приводит к образованию наночастиц. Данный способ потенциально может позволить тонко контролировать распределение размеров получаемых AuNPs путeм варьирования параметров падающего пучка: тип ионов, энергия, доза.…”

Section: Introductionunclassified

Формирование наночастиц Au и особенности травления подложки Si после облучения атомарными и молекулярными ионами

Тужилкин¹,

Беспалова²,

Мишин³

et al. 2020

Физика И Техника Полупроводников

View full text Add to dashboard Cite

Formation of metal nanoparticles on silicon substrate by thin gold film irradiation with accelerated atomic and molecular ions is shown. Structures obtained were etched by metal-assisted catalytic chemical technique to get porous silicon structure. Size of gold nanoparticles and the structure of porous siliconstrongly depend on kind of incident species and ion dose. A local increase in the energy release density at the target surface that takes place during molecular ion bombardment significantly reduce the doses required for the formation of predetermined film morphology and the distribution of nanoparticles on the surface, while at the same time molecules exhibit lower radiation effect on the substrate. Luminescent properties of porous silicon do not depend on the kind of ion used, and can be tuned by composition of an etching solution

show abstract

Control of the micrometric scale morphology of silicon nanowires through ion irradiation-induced metal dewetting

Cited by 11 publications

References 30 publications

Antifungal Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Antifungal Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Antibacterial Properties of Pure Silver Films with Nanoparticles Induced by Pulsed-Laser Dewetting Process

Формирование наночастиц Au и особенности травления подложки Si после облучения атомарными и молекулярными ионами

Contact Info

Product

Resources

About