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TlGaSe2

簡要描述:The only commercially available TlGaSe2 vdW crystals have been synthesized at our facilities through float zone technique.

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  • 廠商(shāng)性質:生(shēng)産廠家
  • 更新時間:2018-07-09
  • 訪  問  量:586

詳細介紹

The only commercially available TlGaSe2 vdW crystals have been synthesized at our facilities through float zone technique. TlGaSe2 semiconductors belong to the thallium chalcogenides family with the chemical formula TlBX2 (where B=In or Ga, X=S, Se or Te). Members of this family have both layered (, TlGaS2, TlInS2) and chain (TlInSe2, TlInTe2, TlGaTe2) structures. Stacking of the atoms in , TlGaS2 and TlInS2 layered crystals is arranged in the form of two twisted anionic layers with the weak bonded Tl(+1) cations located in the trigonal cavities between them. As a result, these crystals exhibit layered structure with weak vdW coupling between the adjacent layers. In particular, is a direct gap semiconductor with optical band gap of 1.87 eV, it exhibits unique structural phase transition from normal (N) to a commensurate (C) state via an intermediate incommensurate (I) phase at 100K and 120K. They exhibit para-to-ferroelectric phase transitions, and also shows ferroelectric and ferroelastic behavior. Crystals come with guaranteed structural phase transitions.

Properties of layered crystals

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上海磊矶科技有限公司 公司地址:上海市虹口區寶山路778号海倫國際大(dà)廈5樓   技術支持:化工(gōng)儀器網
  • 聯系人:袁文軍
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  • 公司座機:86-021-56830191
  • 郵箱:yuanwenjun@sunano.com.cn

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