Tetracene Identifiers CAS number PubChem ChemSpider ChEBI Jmol-3D images Image 1 Properties Molecular formula C18H12 Molar mass 228.29 g/mol Appearance Yellow to orange solid Melting point
357 °C, 630 K, 675 °F
Solubility in water Insoluble Hazards EU Index Not listed (what is: /?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Tetracene, also called naphthacene, is a polycyclic aromatic hydrocarbon. It has the appearance of a pale orange powder. Tetracene is the four-ringed member of the series of acenes, the previous one being anthracene (tricene) and the next one being pentacene.
Tetracene is a molecular organic semiconductor, used in organic field-effect transistors (OFETs) and organic light-emitting diodes (OLEDs). In May 2007, researchers from two Japanese universities, Tohoku University in Sendai and Osaka University, have reported an ambipolar light-emitting transistor made of a single tetracene crystal. Ambipolar means that the electric charge is transported by both, positively charged holes and negatively charged electrons. Tetracene can be also used as a gain medium in dye lasers as a sensitiser in chemoluminescence.
Jan Hendrik Schön during his time at Bell Labs (1997–2002) claimed to have developed an electrically pumped laser based on tetracene. However, his results could not be reproduced, and it is considered to be scientific fraud.
- ^ T. Takahashi, T. Takenobu, J. Takeya, Y. Iwasa (2007). "Ambipolar Light-Emitting Transistors of a Tetracene Single Crystal". Advanced Functional Materials 17 (10): 1623–1628. doi:10.1002/adfm.200700046. http://www3.interscience.wiley.com/cgi-bin/abstract/114266185/ABSTRACT.
- ^ Agin, Dan (2007). Junk Science: An Overdue Indictment of Government, Industry, and Faith Groups That Twist Science for Their Own Gain. Macmillan. ISBN 9780312374808. http://books.google.com/?id=VxcjOL1j8iAC.
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