Fano resonances in photoconductivity spectra of hydrogen donors in ZnO and rutile
Fano resonances in photoconductivity spectra of hydrogen donors in ZnO and rutile
复制标题
ZnO 和金红石中氢供体光电导光谱中的法诺共振
DOI：
10.1088/0268-1242/30/2/024004
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发表时间：
2015
影响因子：
1.9
通讯作者：
J. Weber
中科院分区：
文献类型：
--
作者：
E. Lavrov;F. Herklotz;J. Weber
介绍了ZnO和金红石型TiO 2中氢给体的光电导研究结果。结果表明，在ZnO和TiO 2的光电导谱中，分别在3611和3290 cm-1处检测到含施主的O-H键的局域振动模，即Fano共振。如果氢被氘取代，这些特征的能量红移到2668（ZnO）和2445 cm− 1（TiO 2）。根据氘共振的频率推断，TiO 2中氢施主的电离能小于300 meV，这与理论预测不符。这种差异的原因进行了讨论。
The results of photoconductivity studies of hydrogen donors in ZnO and rutile TiO 2 are presented. It is shown that local vibrational modes of O–H bonds comprising donors in both semiconductors can be detected in photoconductivity spectra as Fano resonances at 3611 and 3290 cm− 1 in the case of ZnO and TiO 2, respectively. The frequencies of these features red-shift in energy down to 2668 (ZnO) and 2445 cm− 1 (TiO 2) if hydrogen is substituted by deuterium. Based on the frequency of the deuterium resonance it is concluded that the ionization energy of the hydrogen donor in TiO 2 is less than 300 meV, which is in variance with predictions of theory. The reasons for such a discrepancy are discussed.
影响因子：
3.2
作者：
Brant, A. T.;Yang, Shan;Halliburton, L. E.
通讯作者：
Halliburton, L. E.
影响因子：
8.6
作者：
Spahr, E. J.;Wen, L.;Luepke, G.
通讯作者：
Luepke, G.