Optical properties and surface structuring of Ge20Sb5S75 amorphous chalcogenide thin films deposited by spin-coating and vacuum thermal evaporation

Šlang, Stanislav; Janíček, Petr; Pálka, Karel; Loghina, Liudmila; Vlček, M.

doi:10.1016/j.matchemphys.2017.10.025

Cited by 18 publications

(22 citation statements)

References 38 publications

(91 reference statements)

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“…The Raman spectra confirm that annealing of solution processed As30Se70 thin films induces structural polymerization similar to the As-S or Ge-S spin-coated thin films [19,20,26]. The spectra show that the bands of Se8 rings and arsenic rich As4Se4 units are proportionally decreasing while the intensity of AsSe3/2 trigonal pyramids band is increasing.…”

Section: Resultsmentioning

confidence: 52%

“…Previous research has confirmed, that As-S ChGs can be successfully dissolved in volatile amines with short aliphatic chain (such as n-propylamine or n-butylamine) [15,16,19,20]. In this work, we have also used the n-propylamine (PrNH2) solvent for As30Se70 ChG dissolution.…”

Section: Resultsmentioning

confidence: 66%

“…spin-coating, dip-coating, spiral bar-coating, electrospray, etc. [15][16][17][18][19][20][21][22]) which exploit solubility of ChGs in volatile alkaline amines are also gaining attention. The solution-based deposition route can be also used for preparation of ChG thin films with embedded luminescent nanoparticles [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Šlang

Pálka

Janíček

et al. 2018

Opt. Mater. Express

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We present the study of volatile amine-based single or multi-component solvent formulations and their influence on As30Se70 chalcogenide glass solubility and dissolution mechanism. The source As30Se70 bulk glass was dissolved in various amine based solvents and solutions of quantitatively dissolved bulk glass were used for thin films deposition by spincoating technique. The methanoln-propylamine solvent mixture proved to be suitable for preparation of thin films in specular optical quality, low surface roughness and targeted composition. The post-deposition thermal treatment has high impact on thickness, optical properties and structure of studied thin films. The content of organic residuals was also significantly reduced.

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Section: Resultsmentioning

confidence: 52%

Section: Resultsmentioning

confidence: 66%

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Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Šlang

Pálka

Janíček

et al. 2018

Opt. Mater. Express

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“…The system includes a silicate and a crystalline holder. The measurement accuracy is 1 nm that can measure and control the thickness of the layer in during of coating process …”

Section: Materials and Experimental Proceduresmentioning

confidence: 99%

Experimental investigation of the adhesion force of single and double‐layer coatings on MEMS surfaces

Joulaei

Kolahdoozan

Salehi

et al. 2018

Surface & Interface Analysis

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Adhesion force is one of the most important factors in microelectromechanical systems (MEMS), especially for microassembly. It depends on operating conditions and is affected by the contact area. In this study, the adhesion force between MEMS materials and AFM tips was analysed using AFM's point-mode spectroscopy. The aim was to study the effectiveness of various coatings in MEMS adhesion surfaces.For this purpose, five silicon surfaces were used, four of which were coated, and one was noncoated. Two of them were deposited by single-layer coating (Au and Ag). The other two were deposited by double-layer coating (TiO 2 /Au, TiO 2 /Ag) on a Si (1 0 0) substrate. The depositing was accomplished by the thermal evaporation method. Composite materials and analysis were reviewed by observing the SEM image. The experimental results showed that the method of deposition helped to decrease the adhesion force between the probe tip and the surface of the specimens, and double-layer coating had stronger effect on decreasing the adhesion force than the single-layer coating.

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“…26 Enhanced optical properties can also be achieved by thin film deposition through spin coating. 27 Spin-coated films have an increase in interface area and high heat transfer rate for heat removal process in large-scale fabrication. 24,28 The spin-coated graphene films exhibit highly ordered lamellar structure with high orientation of graphene which provides constant thermally conductive pathways.…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation on the influence of carbon-based nanoparticle coating on the heat transfer characteristics of the microprocessor

Thangamuthu

Rathanasamy²,

Kulandaivelu³

et al. 2019

Journal of Composite Materials

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In the current scenario, thermal management plays a vital role in electronic system design. The temperature of the electronic components should not exceed manufacturer-specified temperature levels in order to maintain safe operating range and service life. The reduction in heat build-up will certainly enhance the component life and reliability of the system. The aim of this research work is to analyze the effect of multi-walled carbon nanotube and graphene coating on the heat transfer capacity of a microprocessor used in personal computers. The performance of coating materials was investigated at three different usages of central processing unit. Multi-walled carbon nanotube-coated and graphene-coated microprocessors showed better enhancement in heat transfer as compared with uncoated microprocessors. Maximum decrease in heat build-up of 7 and 9℃ was achieved for multi-walled carbon nanotube-coated and graphene-coated microprocessors compared to pure substrate. From the results, graphene has been proven to be a suitable candidate for effective heat transfer compared to with multi-walled carbon nanotubes due to high thermal conductivity characteristics of the former compared to the latter.

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Optical properties and surface structuring of Ge20Sb5S75 amorphous chalcogenide thin films deposited by spin-coating and vacuum thermal evaporation

Cited by 18 publications

References 38 publications

Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Experimental investigation of the adhesion force of single and double‐layer coatings on MEMS surfaces

Experimental investigation on the influence of carbon-based nanoparticle coating on the heat transfer characteristics of the microprocessor

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Optical properties and surface structuring of Ge20Sb5S75 amorphous chalcogenide thin films deposited by spin-coating and vacuum thermal evaporation

Cited by 18 publications

References 38 publications

Solution processed As30Se70chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Solution processed As30Se70chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Experimental investigation of the adhesion force of single and double‐layer coatings on MEMS surfaces

Experimental investigation on the influence of carbon-based nanoparticle coating on the heat transfer characteristics of the microprocessor

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Product

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Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach

Solution processed As₃₀Se₇₀chalcogenide glass thin films with specular optical quality: multi-component solvent approach