Details

Autor(en) / Beteiligte

• Ulrich, Markus
• Kohl, Claus-Dieter
• Bunde, Armin

Titel

Percolation model of a nanocrystalline gas sensitive layer

Ist Teil von

• Thin solid films, 2001-07, Vol.391 (2), p.299-302

Ort / Verlag

Lausanne: Elsevier B.V

Erscheinungsjahr

2001

Link zum Volltext

Quelle

Elsevier Journal Backfiles on ScienceDirect (DFG Nationallizenzen)

Beschreibungen/Notizen

• A model for the nanocrystalline layer of a semiconducting gas sensor is developed that takes into account the possibility of having ultrasmall compensated grains that are insulating. The probability that an ultrasmall grain is insulating depends on the diameter D and the number of next neighbors (the coordination number k). The occurrence of insulating grains leads to specific percolation type effects on the conductivity of the layer, by which its sensitivity can be improved.