The anodic dissolution of germanium

✍ Scribed by B. Lovreček; K. Moslavac

• Publisher: Elsevier Science
• Year: 1965
• Tongue: English
• Weight: 586 KB
• Volume: 10
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(65)87041-4

✦ Synopsis

Investigations have been made on anodic dissolution of n-type germanium. Experimental conditions were achieved which enabled the construction of a potential/current (eJi+) diagram, in a broad current density range, which satisfies the condition pl = pO, ie the concentration of holes on the boundary of the space charge region @,) equals the equilibrium concentration of holes in the bulk of the semiconductor @,,). Potential/current curves constructed in such a way are compared with similar earlier attempts. Taking these results, by an analogy with surface photo-effect, the saturation current of holes (ig,s.t) in anodic polarization is calculated. Further, it is now possible to separate the parts of the overall overpotential which correspond to the transport phenomenon of holes (qp,,) and injection by chemical reaction (OqL~), respectively. These values calculated from experimental results are compared with those to be expected theoretically.