New advantages and challenges for laser-induced nanostructured cluster materials: functional capability for experimental verification of macroscopic quantum phenomena

Abstract

The main goal of our work is the laser fabrication of nanostructured materials including the nanoand microclusters for control of electrical, optical and other properties of obtained structures. First, we took an opportunity to select nanoparticles in various sizes and weights and also in topology distribution for some materials (carbon, Ni, PbTe, etc). Second, for a deposited extended array of nanoparticles we used a method of laser-induced nanoparticle fabrication in colloid and deposition metal (and/or oxide) nanoparticles from colloidal systems (LDPCS) to obtain the multilayered nanostructures with controlled topology, including the fractal cluster structures (for Ni, Pb Te et al). Electrophysical properties are analyzed for such nanocluster systems as well. A brief analogy of the obtained nanocluster structures with a quantum correlated state evidence is carried out.

Топологические Лазерно Индуцированные Квантовые Состояния В Нанокластерных Структурах: Фундаментальные Эффекты И Возможные Применения (Электрофизика И Оптика)

“…6, a. Это связано с конкуренцией между увеличением электропроводимости при открытии новых каналов (количество таких каналов по поперечному сечению регистрирующего микроконтакта в электрической схеме, определяющее величину измеряемого сопротивления, аналогично поперечному сечению цилиндрического проводника) и увеличением сопротивления за счет увеличения расстояния между проводящими островками. Влияние оказывает и изменение глубины квантовых ям из-за локальных полей в системе, приводящее к тепловой термоактивации в сформированных островковых пленках -скачок электропроводимости [28,29]. Электрофизика тонких пленок также зависит и от процедуры лазерного осаждения [5].…”

Reliable and well-controlled synthesis of noble metal nanoparticles by continuous wave laser ablation in different liquids for deposition of thin films with variable optical properties

“…Thus, we varied such parameters as liquid viscosity, compressibility, heat conductivity, boiling, and evaporation temperatures. These liquid properties are known to determine the expected thermodynamic and hydrodynamic effects when nanoparticles are produced in liquid colloids (Abramov et al 2014;Linz et al 2015). However, their roles are not yet completely understood.…”

“…These effects commonly lead to particle reshaping or even fragmentation (Antipov et al 2012;Makarov 2013). This process can become particularly important if liquid is heated up to a supercritical state (Abramov et al 2014).…”

“…In particular, the presence of nanoparticles was demonstrated in pulsed laser deposition performed both in vacuum and in inert gases (Gouriet et al 2009). Laser ablation in liquid media, furthermore, was shown to be a promising approach for a wide range of applications (Abramov et al 2014;Barmina et al 2010;Itina 2011;Simakin et al 2001). In contrast to nanoparticles synthesized by chemical techniques, nanoparticles generated by laser ablation in liquids can be free of surface active substances and irrelevant ions (Barcikowski et al 2007), thus providing a possibility of generating chemical ''pure'' colloids.…”

Structure and Morphology Effects on the Optical Properties of Bimetallic Nanoparticle Films Laser Deposited on a Glass Substrate

“…The average particle sizes were determined by the dynamic light scattering technique yielding ∼10 nm, while their concentration was ∼1 mg/ml. More details about nanoparticle formation by CW laser in liquids can be also found in [10,11].…”