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

Samardokas, Linas; Ivanauskas, Remigijus; Žalenkienė, Skirma; Ivanauskas, Algimantas

doi:10.6001/chemija.v32i2.4431

Cited by 1 publication

(5 citation statements)

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“…Thallium, despite its toxicity, [100] is still present in chalcogenides either as dopant [54,[231][232] or as compositional element in ternary [140] Copyright 2020, American Chemical Society. and quaternary chalcogenides.…”

Section: Thallium Chalcogenides Thin Films and Their Fabricationmentioning

confidence: 99%

“…However, the chemical form of Tl + complexes in the precursor solution has shown the greatest effect in modulating the layer composition. [ 54 ] Some of these results and methods are summarized in Figure 17.…”

Section: Thallium Chalcogenidesmentioning

confidence: 99%

“…Thallium, despite its toxicity, [ 100 ] is still present in chalcogenides either as dopant [ 54,231–232 ] or as compositional element in ternary and quaternary chalcogenides. [ 207,233–237 ] Furthermore, many of its binary chalcogenides structures are semiconducting, and therefore still interesting to study from both a basic and applied point of view these compounds tend to form thin films easily, since their respective crystal structures are layered.…”

Section: Thallium Chalcogenidesmentioning

confidence: 99%

“…Top‐down preparation methods for 2D nanomaterials readily described are not exempt from important drawbacks: they are time‐consuming; use hazardous chemicals, and generally produce largely defective particles. Despite these drawbacks, they afford highly transparent dispersions composed of ultrasmall 2D structures [ 51 ] that ultimately can be used in optical, [ 52–58 ] optoelectronic, [ 17,40,58–64 ] or photonic, [ 40,57,58 ] applications.…”

Section: Introductionmentioning

confidence: 99%

“…2D structures [51] that ultimately can be used in optical, [52][53][54][55][56][57][58] optoelectronic, [17,40,[58][59][60][61][62][63][64] or photonic, [40,57,58] applications.…”

Section: Introductionmentioning

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 Chalcogenides Thin Films and Their Fabricationmentioning

confidence: 99%

Section: Thallium Chalcogenidesmentioning

confidence: 99%

Section: Thallium Chalcogenidesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…2D structures [51] that ultimately can be used in optical, [52][53][54][55][56][57][58] optoelectronic, [17,40,[58][59][60][61][62][63][64] or photonic, [40,57,58] applications.…”

Section: Introductionmentioning

confidence: 99%

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