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Science 8 September 1972:
Vol. 177. no. 4052, pp. 896 - 897
DOI: 10.1126/science.177.4052.896
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Articles

Mobility Gaps: A Mechanism for Band Gaps in Melanins

John E. McGinness 1

1 907 Reid, Houston, Texas 77022

The semiconductor behavior of melanins is reviewed and compared with quantum mechanical models of conduction in amorphous solids. The available data are consistent with extensions of Mott's basic model for amorphous semiconductors, whereas they are inconsistent with crystalline semiconductor models. An investigation of the specific conduction mechanisms operative in melanins in terms of the amorphous model should reveal important aspects of the band structure.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Melanin Production and Use as a Soluble Electron Shuttle for Fe(III) Oxide Reduction and as a Terminal Electron Acceptor by Shewanella algae BrY.
C. E. Turick, L. S. Tisa, and F. Caccavo Jr. (2002)
Appl. Envir. Microbiol. 68, 2436-2444
   Abstract »    Full Text »    PDF »
Amorphous Semiconductor Switching in Melanins.
J. McGinness, P. Corry, and P. Proctor (1974)
Science 183, 853-855
   Abstract »    PDF »


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Science. ISSN 0036-8075 (print), 1095-9203 (online)