Distinct anisotropy and a high power factor in highly textured TiS2ceramicsviamechanical exfoliation

Yan Gu; Kaikai Song; Xiaohui Hu; Changchun Chen; Lin Pan; Chunhua Lu; Xiaodong Shen; Kunihito Koumoto; Yifeng Wang

doi:10.1039/d0cc02097d

Distinct anisotropy and a high power factor in highly textured TiS₂ceramicsviamechanical exfoliation

Yan Gu, Kaikai Song, Xiaohui Hu, Changchun Chen, Lin Pan, Chunhua Lu, Xiaodong Shen, Kunihito Koumoto, Yifeng Wang

College of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Polycrystalline bulk of TiS₂with a remarkable enhancement of the texture degree was obtained by densifying powders refined by a liquid-based mechanical exfoliation process. As compared to the pristine TiS₂, the in-(a-b)-plane mobility in the exfoliation sample increased from 5.9 to 9.8 cm²V^-1s^-1with an almost unaffected carrier concentration, in spite of the increased scattering due to grain boundaries. As a result, a tremendously high power factor of up to 16 µW cm^-1K^-2at 673 K was achieved, which is 60% higher than that of the pristine TiS₂and is the highest for bulk TiS₂at high temperatures.

Original language	English
Pages (from-to)	5961-5964
Number of pages	4
Journal	Chemical Communications
Volume	56
Issue number	44
DOIs	https://doi.org/10.1039/d0cc02097d
State	Published - 4 Jun 2020

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abstract = "Polycrystalline bulk of TiS2with a remarkable enhancement of the texture degree was obtained by densifying powders refined by a liquid-based mechanical exfoliation process. As compared to the pristine TiS2, the in-(a-b)-plane mobility in the exfoliation sample increased from 5.9 to 9.8 cm2V-1s-1with an almost unaffected carrier concentration, in spite of the increased scattering due to grain boundaries. As a result, a tremendously high power factor of up to 16 µW cm-1K-2at 673 K was achieved, which is 60% higher than that of the pristine TiS2and is the highest for bulk TiS2at high temperatures.",

author = "Yan Gu and Kaikai Song and Xiaohui Hu and Changchun Chen and Lin Pan and Chunhua Lu and Xiaodong Shen and Kunihito Koumoto and Yifeng Wang",

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doi = "10.1039/d0cc02097d",

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T1 - Distinct anisotropy and a high power factor in highly textured TiS2ceramicsviamechanical exfoliation

AU - Gu, Yan

AU - Song, Kaikai

AU - Hu, Xiaohui

AU - Chen, Changchun

AU - Pan, Lin

AU - Lu, Chunhua

AU - Shen, Xiaodong

AU - Koumoto, Kunihito

AU - Wang, Yifeng

PY - 2020/6/4

Y1 - 2020/6/4

N2 - Polycrystalline bulk of TiS2with a remarkable enhancement of the texture degree was obtained by densifying powders refined by a liquid-based mechanical exfoliation process. As compared to the pristine TiS2, the in-(a-b)-plane mobility in the exfoliation sample increased from 5.9 to 9.8 cm2V-1s-1with an almost unaffected carrier concentration, in spite of the increased scattering due to grain boundaries. As a result, a tremendously high power factor of up to 16 µW cm-1K-2at 673 K was achieved, which is 60% higher than that of the pristine TiS2and is the highest for bulk TiS2at high temperatures.

AB - Polycrystalline bulk of TiS2with a remarkable enhancement of the texture degree was obtained by densifying powders refined by a liquid-based mechanical exfoliation process. As compared to the pristine TiS2, the in-(a-b)-plane mobility in the exfoliation sample increased from 5.9 to 9.8 cm2V-1s-1with an almost unaffected carrier concentration, in spite of the increased scattering due to grain boundaries. As a result, a tremendously high power factor of up to 16 µW cm-1K-2at 673 K was achieved, which is 60% higher than that of the pristine TiS2and is the highest for bulk TiS2at high temperatures.

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DO - 10.1039/d0cc02097d

M3 - 文章

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AN - SCOPUS:85085701653

SN - 1359-7345

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JO - Chemical Communications

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Distinct anisotropy and a high power factor in highly textured TiS₂ceramicsviamechanical exfoliation

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