Characterization and properties of Ge1-x-Cx:H compounds obtained by X-ray CVD of germane/ethyne systems:: Effect of the irradiation dose

被引：7

作者：

Benzi, P

Bottizzo, E

Demaria, C

机构：

[1] Univ Turin, Dipartimento Chim Gen & Organ Applicata, I-10125 Turin, Italy

[2] Univ Turin, Ctr Excellence, NIS, I-10125 Turin, Italy

[3] Ist Nazl Fis Mat, I-16152 Genoa, Italy

来源：

CHEMICAL VAPOR DEPOSITION | 2006年 / 12卷 / 01期

关键词：

binary alloys; germanium carbide; radiolysis; X-ray;

D O I：

10.1002/cvde.200506411

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Amorphous germanium carbides have been prepared by X-ray activated CVD from germane/ethyne systems containing from 10 % to 80 % of ethyne. The effects of the dosage on the composition, characteristics, and properties of the solids obtained have been investigated. The composition of the material is found to change depending on both the ethyne percentage in the mixture and the irradiation time. Electron paramagnetic resonance (EPR), X-ray diffraction (XRD) analysis, and infrared spectroscopy (IRS) results indicate that the solids are formed by a randomly bound network of carbon and germanium atoms with hydrogen atoms terminating all the dangling bonds. Optical gap values higher than 3.0 eV, and increasing with the carbon molar fraction of the solid, have been found.

引用

页码：25 / 32

页数：8

共 55 条

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