Merck
CN
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文件

86370

Sigma-Aldrich

二氧化碲

≥97.0%

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别名:
Telluria, Tellurium oxide
线性分子式:
TeO2
CAS号:
7446-07-3
分子量:
159.60
EC 号:
231-193-1
MDL编号:
MFCD00011263
PubChem化学物质编号:
57653113
NACRES:
NA.23

检测方案

≥97.0%

形式

powder

mp

733 °C (lit.)

密度

5.67 g/mL at 25 °C (lit.)

SMILES string

O=[Te]=O

InChI

1S/O2Te/c1-3-2

InChI key

LAJZODKXOMJMPK-UHFFFAOYSA-N

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相关类别

一般描述

Tellurium dioxide (TeO2) is a ceramic material that can be used as a semiconducting oxide. It has a wide band gap and high mobility as determined by density functional theory (DFT) calculations. In bulk quantity, it exists in two polymorphs which include tetragonal α-TeO2 and orthorhombic β-TeO2.

应用

TeO2 can be potentially used in medical imaging and industrial monitoring processes.

警示用语：

Danger

危险分类

Acute Tox. 4 Inhalation - Aquatic Chronic 2 - Lact. - Repr. 1B - Skin Sens. 1B

储存分类代码

6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 3

闪点(°F)

Not applicable

闪点(°C)

Not applicable

个人防护装备

Eyeshields, Gloves, type N95 (US)

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Gamma radiation-induced changes in the electrical and optical properties of tellurium dioxide thin films
Arshak K and Korostynska O
IEEE Sensors Journal, 3(6), 717-721 (2003)
Ultrathin tellurium dioxide: emerging direct bandgap semiconductor with high-mobility transport anisotropy
Guo S, et al.
Nanoscale, 10(18), 8397-8403 (2018)
Qiu-Hua Nie et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 61(8), 1939-1943 (2005-05-03)
The new Er3+/Yb3+ co-doped 70TeO2-5Li2O-(25-x)B2O3-xGeO2 (x = 0, 5, 10, 15 fand 20 mol.%) glasses were prepared. The thermal stability, absorption spectra, emission spectra and lifetime of the 4I(13/2) level of Er3+ ions were measured and studied. The FT-IR spectra
Ganxin Chen et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 72(4), 734-737 (2008-12-30)
We report on spectroscopic properties and energy transfer of Tm(3+)/Ho(3+)-codoped tungsten tellurite glasses for 1.47microm amplifier. Fluorescence spectra and the analysis of energy transfer indicate that Ho(3+) is an excellent codopant for 1.47microm emission. Comparing with other tellurite glasses, the
R Balda et al.
Optics express, 17(11), 8781-8788 (2009-05-26)
In this work, we report the near-infrared emission properties of Tm(3+)-Er(3+) codoped tellurite TeO(2)-WO(3)-PbO glasses under 794 nm excitation. A broad emission from 1350 to 1750 nm corresponding to the Tm(3+) and Er(3+) emissions is observed. The full width at
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