Study of Formation and Phase Composition of Thallium Selenide Layers on Polycaproamide

Ivanauskas, Remigijus; Samardokas, Linas; Ancutienė, Ingrida; Ivanauskas, Algimantas

doi:10.5755/j01.ms.21.1.5187

Cited by 3 publications

(5 citation statements)

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“…prepared a composite material, depositing Tl x Se y on polyamide [ 239,247 ] and in 2015 thallium selenide layers on polycaproamide (PA 6). [ 248 ] These studies were performed using the adsorption‐diffusion method for the preparation of layers. In 2006, Bružaite et al.…”

Section: Thallium Chalcogenidesmentioning

confidence: 99%

“…[105,108] In 2014, Ivanauskas et al prepared a composite material, depositing Tl x Se y on polyamide [239,247] and in 2015 thallium selenide layers on polycaproamide (PA 6). [248] These studies were performed using the adsorption-diffusion method for the preparation of layers. In 2006, Bružaite et al presented an alternative method for the deposition of thallium sulfides, i.e., the sulfurization-reaction process, which consisted in the use of higher polythionic acid reacting with an alkaline solution of Tl(I) salts.…”

Section: Thallium Chalcogenides Thin Films and Their Fabricationmentioning

confidence: 99%

“…b) Schematics of the polyamide (PA)-Tl x Se y thin layer preparation; the arrow indicates that the layers have been prepared using the CBD method, c) polycrystalline (up) and single-crystal (down) TlSe layer on NaCl. b) Reproduced with permission [248]. Copyright 2014, Elsevier.…”

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confidence: 99%

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A New, Thorough Look on Unusual and Neglected Group III‐VI Compounds Toward Novel Perusals

Guzzetta

Jellett

Azadmanjiri

et al. 2023

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been permitted. [4][5][6][7] Although, the employment of 2D nanosheets, especially in biomedicine, is still in its primordial state and has permitted to the realization of novel advancements in such applications. [8][9][10] It needs to be highlighted that some of these compounds present mild cytotoxicity and dose-dependent induced metabolic disadvantages. [11,12] Albeit direct use in the body is not yet advisable, it is possible to indirectly employ these compounds in the creation of wearable devices for tracking vital parameters. [13] Research on such topics, both from fundamental and applied studies has led to an exponential increase in the number of publications during the last 10 years (Figure 1c). [14] One of the pivotal characteristics of 2D nanostructures is their high specific area-to-thickness ratio, which can be easily modulated through delamination processes. [15] Ultimately, the smallest crystals that can be created are mono-or bi-atomic layers. To understand how the nanocrystals form from bulk, it is important to comprehend the main characteristic features of the macrocrystals. A layered crystal lattice is presented in Figure 2. These crystals are governed by strong, covalent (or ionic) in-plane bonds, which are often arranged into hexagonal honeycombs. These individual sheets are linked together by inter-plane (inter-layer), and weak van der Waals (vdW) forces. The bond energies between the in-plane atoms, are the major contribution on the total energy of the lattice, leaving weak inter-plane interactions with relatively large distances (i.e., about few hundred picometers in graphene). These large inter-planar spaces are suitable attack points for size reduction, [16][17][18] which requires an external energy input from a providing source in order to delaminate single-layer crystals.The in-plane honeycomb structure is responsible for electrical transport and associated phenomena. For instance, the great mobility of p-electrons and their delocalization on the surface allows excellent transport in graphene. [23,24] However, in some other electro-and photoactivated semiconductors based on 2D materials, the electrical transport on the surface is responsible for the hole-electron confinement. [25] It can also produce poor electrical conduction by 2D materials such as hexagonal boron nitride (hBN) and so making them electrical insulators (see Figure 1a). [26] These differences in the layersThe attention on group III-VI compounds in the last decades has been centered on the optoelectronic properties of indium and gallium chalcogenides. These outstanding properties are leading to novel advancements in terms of fundamental and applied science. One of the advantages of these compounds is to present laminated structures, which can be exfoliated down to monolayers. Despite the large knowledge gathered toward indium and gallium chalcogenides, the family of the group III-VI compounds embraces several other noncommon compounds formed by the other group III elements. These compounds present various crystal lattices...

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Section: Thallium Chalcogenidesmentioning

confidence: 99%

Section: Thallium Chalcogenides Thin Films and Their Fabricationmentioning

confidence: 99%

See 1 more Smart Citation

A New, Thorough Look on Unusual and Neglected Group III‐VI Compounds Toward Novel Perusals

Guzzetta

Jellett

Azadmanjiri

et al. 2023

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“…) from aqueous solutions into the PA substrate [30]. After treating these anion-containing polyamide samples with aqueous solutions of metal cations different binary metal selenide layers on the polymer surface were obtained [31][32][33][34][35][36][37].…”

Section: Introductionmentioning

confidence: 99%

Influence of chemical composition and doping on optical properties of thallium selenide layers prepared by adsorption/diffusion method

Samardokas¹,

Ivanauskas²,

Žalenkienė³

et al. 2021

chemija

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In this work, we investigated the formation of Tl-Se layers followed by doping with metal cations. A two-stage adsorption/diffusion process used to form Tl-Se layers involves (a) selenization in potassium selenotrithionate solution followed by (b) treatment with Tl+ precursor solutions. These layers have been successfully doped with Cu+/Cu2+, Ga3+ and Ag+ cations using a cation exchange reaction. The resulting chemical compositions of Tl-Se and Tl-M-Se (M = Cu, Ga, Ag) layers were investigated using the EDS and AAS methods. The bulk elemental composition and the Tl/Se molar ratio of the Tl-Se layers varied with the concentration of the Tl+ precursor solution, the exposure time in the Tl+ precursor solution, and the form of the Tl+ in the solution, whereas the EDS analysis showed that the surface was slightly enriched in thallium. The optical properties of the formed layers were studied. These layers were identified using room temperature reflection spectrum, the values of absorption edge, bandgap (Eg), band tail width (Urbach energy, EU) of the localised states, Steepness parameter (σ) and electron–phonon interaction (Ee-p).

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“…The synthesis of various metal selenides layers has been realized by many methods, such as chemical bath deposition [13][14][15], successive ionic layer adsorption and reaction [13,16,17], electrodeposition [12,18], evaporation [10], etc. Mostly used approaches to synthesize metal selenides are chemical bath deposition (CBD) and successive ionic layer adsorption and reaction (SILAR) methods [2].…”

Section: Introductionmentioning

confidence: 99%

Composition and morphology of copper bismuth selenide layer on glass prepared by chemical conversion technique

Osipovaitė¹,

Ancutienė²

2019

chemija

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A copper bismuth selenide layer prepared by the chemical conversion of a copper selenide layer on glass has been studied. SEM images display layers with a nonhomogeneous morphology. The copper selenide layer was non-uniform and consisted of dendrites and particulated agglomerates. The surface of the chemically converted layer was denser and smoother with closely spaced spherical grains. The EDX results reveal that the converted samples are rich in copper and poor in bismuth. The phases of copper selenides in the obtained layer and copper bismuth selenide and hexagonal selenium in the annealed converted layer were detected using the XRD analysis. Copper selenide peaks are most dominant with the hexagonal klockmannite phase.

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Study of Formation and Phase Composition of Thallium Selenide Layers on Polycaproamide

Cited by 3 publications

References 16 publications

A New, Thorough Look on Unusual and Neglected Group III‐VI Compounds Toward Novel Perusals

A New, Thorough Look on Unusual and Neglected Group III‐VI Compounds Toward Novel Perusals

Influence of chemical composition and doping on optical properties of thallium selenide layers prepared by adsorption/diffusion method

Composition and morphology of copper bismuth selenide layer on glass prepared by chemical conversion technique

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