Size-Dependent Electrical Transport in ZrSe3-Stripes

IF 4.3 3区 材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC
Davin Höllmann*, Lars Thole, Sonja Locmelis and Rolf J. Haug, 
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引用次数: 0

Abstract

The anisotropy in the form of quasi one-dimensional (1D) chains in transition metal trichalcogenides (TMTCs) makes them stand out compared to other more conventional two-dimensional (2D) materials. Here, we experimentally investigated the electrical properties of stripes of the TMTC ZrSe3, particularly in regard to their width and thickness. For this, we compared narrow samples with wider samples where both have a comparably similar length and thickness and found that the conductivity happens dominantly in the outer selenium atoms, i.e., across the chains, showcasing the in-plane electrical anisotropy of ZrSe3. Comparing stripes of different thicknesses shows a drastic increase in band gap energy from 0.37 eV up to 0.63 eV for thinner samples.

zrse3条纹中与尺寸相关的电输运
过渡金属三硫化物(TMTCs)中准一维(1D)链形式的各向异性使它们与其他更传统的二维(2D)材料相比脱颖而出。在这里,我们实验研究了TMTC ZrSe3条纹的电学性质,特别是关于它们的宽度和厚度。为此,我们比较了窄样品和宽样品,两者都具有相当相似的长度和厚度,发现电导率主要发生在外部硒原子,即跨链,展示了ZrSe3的平面内电各向异性。对不同厚度的条纹进行比较发现,较薄样品的带隙能量从0.37 eV急剧增加到0.63 eV。
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来源期刊
CiteScore
7.20
自引率
4.30%
发文量
567
期刊介绍: ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/​Abstracted: Web of Science SCIE Scopus CAS INSPEC Portico
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