Electron Irradiation Influence on Porous Silicon Electrical Parameters
β Scribed by Zimin, S.P. ;Zimin, D.S. ;Ryabkin, Yu.V. ;Bragin, A.N.
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 84 KB
- Volume
- 182
- Category
- Article
- ISSN
- 0031-8965
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β¦ Synopsis
Changes of dc conductivity for the porous silicon (PS) with different morphology and different pictures of the depleted areas after the irradiation with high-energy electrons (2 MeV, 2 Γ 10 16 to 1 Γ 10 17 cm Β± Β±2 ) are presented. PS layers of 5Β±60% porosity were formed by anodization of n-type Si (100), 4.5 W cm; n + -Si (111), 0.01 W cm; and p + -Si (111), 0.03 W cm substrates. It is shown that the dc conductivity change after the electron bombardment depends on the structural parameters of PS. Different physical models of the charge carrier transport in PS of various porosity were used for the explanation of the experimental results.
π SIMILAR VOLUMES
The electrical current of porous silicon (PS) has been measured while several treatments are made to the samples. When the samples are exposed to air, the DC current increases or decreases depending on the surface conditions of the samples. These results, found to be caused by water vapors in air, c