The role of defects in solid state dewetting of ultrathin Ag film on Si(557)

A. N. Chaika; S. I. Bozhko; A. M. Ionov; I. Sveklo; E. Yu Postnova; V. N. Semenov; A. Bisht; Eugen Rabkin

doi:10.1016/j.scriptamat.2020.113655

The role of defects in solid state dewetting of ultrathin Ag film on Si(557)

A. N. Chaika, S. I. Bozhko, A. M. Ionov, I. Sveklo, E. Yu Postnova, V. N. Semenov, A. Bisht, Eugen Rabkin

Materials Science & Engineering

Technion - Israel Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We have studied the solid state dewetting of ten monolayers thick Ag film deposited on periodically patterned Si(557) surface. The annealing of the system in the ultra-high vacuum at the temperatures between 300 and 400 °C resulted in full agglomeration of the film and formation of faceted single crystalline Ag nanoparticles exhibiting bimodal size distribution. We demonstrated that some particles contain screw dislocations producing a step on the upper particle facet. We related the bimodality in particles distribution with the ability of dislocation-containing Ag particles to evolve by Ostwald ripening mechanism.

Original language	English
Article number	113655
Journal	Scripta Materialia
Volume	194
DOIs	https://doi.org/10.1016/j.scriptamat.2020.113655
State	Published - 15 Mar 2021

Keywords

Dislocation
Scanning tunneling microscopy (STM)
Surface reconstruction
Surface structure
Thin films

All Science Journal Classification (ASJC) codes

Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
General Materials Science

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10.1016/j.scriptamat.2020.113655

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title = "The role of defects in solid state dewetting of ultrathin Ag film on Si(557)",

abstract = "We have studied the solid state dewetting of ten monolayers thick Ag film deposited on periodically patterned Si(557) surface. The annealing of the system in the ultra-high vacuum at the temperatures between 300 and 400 °C resulted in full agglomeration of the film and formation of faceted single crystalline Ag nanoparticles exhibiting bimodal size distribution. We demonstrated that some particles contain screw dislocations producing a step on the upper particle facet. We related the bimodality in particles distribution with the ability of dislocation-containing Ag particles to evolve by Ostwald ripening mechanism.",

keywords = "Dislocation, Scanning tunneling microscopy (STM), Surface reconstruction, Surface structure, Thin films",

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year = "2021",

month = mar,

day = "15",

doi = "10.1016/j.scriptamat.2020.113655",

language = "الإنجليزيّة",

volume = "194",

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publisher = "American Chemical Society",

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TY - JOUR

T1 - The role of defects in solid state dewetting of ultrathin Ag film on Si(557)

AU - Chaika, A. N.

AU - Bozhko, S. I.

AU - Ionov, A. M.

AU - Sveklo, I.

AU - Postnova, E. Yu

AU - Semenov, V. N.

AU - Bisht, A.

AU - Rabkin, Eugen

PY - 2021/3/15

Y1 - 2021/3/15

N2 - We have studied the solid state dewetting of ten monolayers thick Ag film deposited on periodically patterned Si(557) surface. The annealing of the system in the ultra-high vacuum at the temperatures between 300 and 400 °C resulted in full agglomeration of the film and formation of faceted single crystalline Ag nanoparticles exhibiting bimodal size distribution. We demonstrated that some particles contain screw dislocations producing a step on the upper particle facet. We related the bimodality in particles distribution with the ability of dislocation-containing Ag particles to evolve by Ostwald ripening mechanism.

AB - We have studied the solid state dewetting of ten monolayers thick Ag film deposited on periodically patterned Si(557) surface. The annealing of the system in the ultra-high vacuum at the temperatures between 300 and 400 °C resulted in full agglomeration of the film and formation of faceted single crystalline Ag nanoparticles exhibiting bimodal size distribution. We demonstrated that some particles contain screw dislocations producing a step on the upper particle facet. We related the bimodality in particles distribution with the ability of dislocation-containing Ag particles to evolve by Ostwald ripening mechanism.

KW - Dislocation

KW - Scanning tunneling microscopy (STM)

KW - Surface reconstruction

KW - Surface structure

KW - Thin films

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U2 - 10.1016/j.scriptamat.2020.113655

DO - 10.1016/j.scriptamat.2020.113655

M3 - مقالة

SN - 1359-6462

VL - 194

JO - Scripta Materialia

JF - Scripta Materialia

M1 - 113655

ER -

The role of defects in solid state dewetting of ultrathin Ag film on Si(557)

Abstract

Keywords

All Science Journal Classification (ASJC) codes

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