Solubility Range and Energy Band Gap of Powder-Synthesized Ti_(1-x)Ge_xO_2 Solid Solution

Seishi Abe

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Solubility Range and Energy Band Gap of Powder-Synthesized Ti_(1-x)Ge_xO_2 Solid Solution

机译：粉末合成Ti_（1-x）Ge_xO_2固溶体的溶解度范围和能带隙

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In this paper, we investigate the solubility range and energy band gap of the powder-synthesized Ti_(1-x)Ge_xO_2 solid solution. The solubility range of Ge is determined to be 0.23 ± 0.01 at 1273 K through the variation of the lattice constant. The X-ray diffraction result revealed that the single phase of Ti_(1-x)Ge_xO_2 solid solution has a rutile structure, and Ti_(0.77)Ge_(0.23)O_2 and GeO_2 are contained in the two-phase region. The optical absorption edge of the Ti_(1-x)Ge_xO_2 is clearly observed at the ultraviolet region, and shifts toward greater photon energy as x increases, ranging from 2.98 to 3.03 eV at room temperature.

机译：本文研究了粉末合成的Ti_（1-x）Ge_xO_2固溶体的溶解度范围和能带隙。通过改变晶格常数，可以确定在1273 K时Ge的溶解度范围为0.23±0.01。 X射线衍射结果表明，Ti_（1-x）Ge_xO_2固溶体的单相具有金红石结构，两相区域含有Ti_（0.77）Ge_（0.23）O_2和GeO_2。 Ti_（1-x）Ge_xO_2的光吸收边缘在紫外区域清晰可见，并随着x的增加而向更大的光子能量移动，在室温下范围为2.98至3.03 eV。

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《Japanese journal of applied physics》 |2009年第8issue1期|081605.1-081605.3|共3页
作者
Seishi Abe;
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The Research Institute for Electric and Magnetic Materials, Sendai 982-0807, Japan;

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Solubility Range and Energy Band Gap of Powder-Synthesized Ti_(1-x)Ge_xO_2 Solid Solution

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