首页|Polymorphism of low-dimensional material with ternary composition chalcogenide Ta2Ni3Se8

Polymorphism of low-dimensional material with ternary composition chalcogenide Ta2Ni3Se8

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  • NSTL
  • Elsevier
? 2022 Elsevier B.V.In this study, the polymorphism of Ta2Ni3Se8, a three-component one-dimensional chalcogenide material, was discovered. It was confirmed through X-ray diffraction and transmission electron microscopy analyses that the newly identified tetragonal phase of the compound (T-Ta2Ni3Se8) had a different crystal structure from the previously reported orthorhombic phase (O-Ta2Ni3Se8). Conventional O-Ta2Ni3Se8 is a semiconductor material with ambipolar characteristics, whereas T-Ta2Ni3Se8 showed a metallic characteristic in which the electrical resistance slightly increased as the temperature increased. The change in electrical properties due to the variation in lattice isotropy according to the transformation of the crystal system (orthorhombic to tetragonal) is expected to be an important starting point for polymorphism studies of multi-component low-dimensional materials in the future.

1D materialsLow-dimensional materialsPolymorphismTa2Ni3Se8

Asghar G.、Choi J.-Y.、Woo C.、Jeong B.J.、Chae S.、Oh S.、Yoon S.O.、Ahn J.、Kim T.Y.、Lee S.H.、Zhang X.、Kang J.、Park J.-H.、Yu H.K.、Jeon J.、Choi K.H.、Dong X.、Ali J.

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SKKU Advanced Institute of Nanotechnology (SAINT) Sungkyunkwan University

School of Advanced Materials Science & Engineering Sungkyunkwan University

Department of Materials Science and Engineering & Department of Energy Systems Research Ajou University

2022

10.1016/j.jallcom.2022.164463

Journal of Alloys and Compounds

Journal of Alloys and Compounds

EISCI
ISSN：0925-8388
年,卷(期)：2022.907
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