Formation of chromium layers under Volmer–Weber conditions at critically small supersaturations

Perekrestov, V. I.; Kornyushchenko, A. S.; Natalich, V. V.

doi:10.1016/j.solidstatesciences.2014.04.001

Cited by 13 publications

(5 citation statements)

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“…In this case, the free energy minimization together with Ostwald ripening determine the monodispersity of the nanoparticles shape and size on the nucleation stage [41][42][43][44]. The more prolonged condensation results in the porous structures growth which is caused by an incomplete intergrowth of newly formed nanoparticles [45,[37][38][39].…”

Section: Introductionmentioning

confidence: 99%

“…In this case, the reevaporation is enhanced not only by plasma heating, but also by direct energy transfer from the plasma particles to adatoms. In our previous works [38,45], this energy exchange was taken into account by the decrease in the desorption energy up to the effective value. It is known that, the equilibrium pressure value P 0 is determined by equation [48]:…”

Section: Introductionmentioning

confidence: 99%

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Formation of copper porous structures under near-equilibrium chemical vapor deposition

Kornyushchenko

Natalich

Perekrestov

2016

Journal of Crystal Growth

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a b s t r a c tThe mechanism of copper structure formation under near-equilibrium conditions in a chemically-active medium-condensate system has been investigated. The desired conditions have been implemented using CVD system. Copper chloride CuCl 2 was used as a source material, and mixture of hydrogen with nitrogen served as a working gas. The influence of the evaporation temperature, condensation temperature and state of the growth surface on the porous structures formation has been investigated. It has been established, that the structure formation mechanism is determined by layer-by-layer or normal crystal growth, nucleation and growth of whiskers, and also by partial intergrowth of structural elements.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Formation of copper porous structures under near-equilibrium chemical vapor deposition

Kornyushchenko

Natalich

Perekrestov

2016

Journal of Crystal Growth

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“…Некоторые особенности самоорганизации низкоразмерных систем при конденсации слабо пересыщенных паров нами рассмотрены в [11][12][13][14]. В этой связи определенный интерес представляют харак-терные особенности формирования наносистем Zn непосредственно на внешней поверхности мембраны АОА при условии предельно слабых пересыщений осаждаемых паров.…”

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Структурообразование Наносистем Цинка При Использовании Мембран АОА

Корнющенко¹,

Перекрестов²,

Наталич³

et al. 2017

Письма В Журнал Технической Физики

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Поступило в Редакцию 26 сентября 2016 г.Предложен способ получения наносистем Zn при конденсации слабопересы-щенных паров на систему мембрана анодно-окисленного алюминия (АОА) -подложка (Si). Для эффективного проникновения паров Zn в глубь пор АОА параллельно образующим пор формировался направленный паровой поток, при этом температура внешней поверхности мембраны была выше температуры подложки. Слабые паровые потоки получены при магнетронном распылении Zn в высокочистой инертной среде. Определены оптимальные условия формирова-ния наносистем Zn в виде массива упорядоченных островков на поверхности подложки и связанных нанонитей на поверхности мембраны. DOI: 10.21883/PJTF.2017.04.44303.16485 Упорядоченные массивы наноостровков металлов и полупроводни-ков привлекают значительный научный интерес благодаря перспек-тивам их использования в электронике, оптоэлектронике, сенсорах, ультратонких мониторах, устройствах хранения информации высокой плотности [1,2]. Различные наносистемы металлов обычно получают используя наношаблоны в виде мембран анодно-окисленного алюми-ния (АОА) [3][4][5], электронно-лучевую литографию [6-8] и процессы самоорганизации [9,10]. Важно подчеркнуть, что для реализации шаб-лонного метода с применением мембран АОА обычно используется электролитическое осаждение [4,5]. Необходимым условием реализации электролитического осаждения является достаточная для этого электро-проводность подложек. Следовательно, спектр применяемых при этом подложек имеет определенные ограничения.В отличие от электролитического осаждения для формирования упорядоченных массивов наноостровков Zn нами предложен более универсальный метод конденсации вещества вблизи термодинамиче-ского равновесия на систему мембрана АОА -подложка. При этом 94

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“…In this case, the conductivity of a substrate is not important and the effective formation of nanosystems in the porous membrane template is favored by creating a directional vapor flow inward into the pores and maintaining vapor supersaturation at the substrate surface higher than that over the outer membrane surface. This approach allows nanosystems to be formed on arbitrary substrates.Some peculiarities of the self-organization of lowdimensional systems during the condensation of weakly supersaturated vapors have been considered in our previous works [11][12][13][14]. Particular interest is related to characteristic features of the formation of Zn nanosystems directly on the outer surface of AOA membranes under conditions of ultimately weak supersaturation of deposited vapors.…”

mentioning

confidence: 99%

“…Some peculiarities of the self-organization of lowdimensional systems during the condensation of weakly supersaturated vapors have been considered in our previous works [11][12][13][14]. Particular interest is related to characteristic features of the formation of Zn nanosystems directly on the outer surface of AOA membranes under conditions of ultimately weak supersaturation of deposited vapors.…”

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confidence: 99%

Zinc-nanosystem-structure formation using anodic-oxidized aluminum membranes

et al. 2017

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Abstract-We propose a new method for the formation of zinc nanosystems by condensation of a weakly supersaturated Zn vapor in pores of the anodic-oxidized aluminum membrane (AOA)-silicon substrate system. For this purpose, a weak Zn vapor flow is created by magnetron sputtering of Zn target in a high-purity inert gas atmosphere and maintaining a temperature of the porous AOA membrane outer surface higher than that of the substrate. This drives a directional Zn vapor flow inward membrane parallel to the pore generatrix and favors effective penetration of Zn vapor into the membrane. DOI: 10.1134/S1063785017020201Ordered arrays of metal and semiconductor nanoislands have drawn much research interest due to the good prospects of their use in electronics, optoelectronics, sensors, thin displays, and high-density data-storage media [1,2]. Various metal nanosystems are usually obtained with the aid of nanotemplates of porous anodic-oxidized aluminum (AOA) membranes [3][4][5], electron-beam nanolithography [6][7][8], and self-assembly processes [9,10]. It should be noted that the template approach employing AOA membranes is usually realized by means of electrolytic deposition [4,5]. A necessary condition for implementing this method is a sufficiently high electric conductivity of substrates, which imposes certain limitations on the spectrum of acceptable substrate materials.In contrast to using electrolytic deposition for the formation of ordered Zn nanoisland arrays, we propose a more universal method of substance condensation near thermodynamic equilibrium onto the anodic-oxidized aluminum membrane (AOA)-substrate system. In this case, the conductivity of a substrate is not important and the effective formation of nanosystems in the porous membrane template is favored by creating a directional vapor flow inward into the pores and maintaining vapor supersaturation at the substrate surface higher than that over the outer membrane surface. This approach allows nanosystems to be formed on arbitrary substrates.Some peculiarities of the self-organization of lowdimensional systems during the condensation of weakly supersaturated vapors have been considered in our previous works [11][12][13][14]. Particular interest is related to characteristic features of the formation of Zn nanosystems directly on the outer surface of AOA membranes under conditions of ultimately weak supersaturation of deposited vapors. The choice of zinc is explained by the fact that, in combination with a quite simple oxidation method, this approach can be used for obtaining ZnO nanosystems with a broad spectrum of potential applications.In this context, the main aim of this work was to study the mechanisms of structure formation in Zn nanosystems on the surface of a Si substrate and the outer surface of AOA membranes during the condensation of weakly supersaturated Zn vapors onto the membrane-substrate (AOA-Si) system under conditions of a lower temperature of the substrate surface as compared to that of the outer membrane surface.The condensation of a s...

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Formation of chromium layers under Volmer–Weber conditions at critically small supersaturations

Cited by 13 publications

References 33 publications

Formation of copper porous structures under near-equilibrium chemical vapor deposition

Formation of copper porous structures under near-equilibrium chemical vapor deposition

Структурообразование Наносистем Цинка При Использовании Мембран АОА

Zinc-nanosystem-structure formation using anodic-oxidized aluminum membranes

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