An explanation of optical phenomena in non-crystalline semiconductors

• Authors: Ivan Banik
• Languages of publication: EN

Abstracts

EN

Barrier model of a non-crystalline semiconductor is described in this article. The most important optical phenomena, which are typical for this group of materials, are explained on the base of this model. The model assumes that in non-crystalline semiconductors the potential barriers exist, which separate certain microscopic areas from each other, assuming barriers possess a parabolic profile. This conception explains the rise of exponential tails of optical absorption at the end of optical edge as well as electroabsorption, photoelectric conductivity, photoluminescence, and others. Using this model, many electric transport properties of non-crystalline semiconductors can be explained successfully.

Keywords

EN

Amorphous semiconductors; optical absorption; exponential tails; photoconduction; electroabsorption; 71.23.Cq; 72.40.+w; 78.20.Bh; 78.40.Fy; 78.55.Qr; 78.66.Jg; 78.90.+t

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2005
• Volume: 3
• Issue: 2
• Pages: 270-302

Dates

published

1 - 6 - 2005

online

1 - 6 - 2005

Contributors

author

Ivan Banik

• Department of Phhsics, Faculty of Civil Engineering, Slovak University of Technology, Radlinského 11, 813 68, Bratislava, Slovak Republic

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Identifiers

DOI

10.2478/BF02475593