Tetracene


Tetracene
Tetracene
Identifiers
CAS number 92-24-0 YesY
PubChem 7080
ChemSpider 6813 YesY
ChEBI CHEBI:32600 YesY
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
 YesY (verify) (what is: YesY/N?)
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa)
Infobox references

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.[1] 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.[2]

References

  1. ^ 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. 
  2. ^ 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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Look at other dictionaries:

  • Tétracène — Structure du tétracène Général Nom IUPAC Tétracène …   Wikipédia en Français

  • tetracene — naftacenas statusas T sritis chemija formulė C₁₈H₁₂ atitikmenys: angl. naphthacene; tetracene rus. нафтацен; тетрацен …   Chemijos terminų aiškinamasis žodynas

  • tetracene — /te treuh seen /, n. Chem. naphthacene. [alter. of TETRAZENE] * * * …   Universalium

  • tetracene — noun A polycyclic aromatic hydrocarbon; the acene containing four fused rings, isomeric with tetraphene …   Wiktionary

  • tetracene — tet·ra·cene …   English syllables

  • tetracene — ˈte.trəˌsēn noun ( s) Etymology: alteration of tetrazene : a yellow solid compound (H3N2C)NHNHN . N(CN2H2)NHNO made by reaction of amino guanidine and nitrous acid and used as an explosive in priming compositions for cartridges and in combination …   Useful english dictionary

  • 92-24-0 — Tétracène Tétracène Structure du tétracène Général Nom IUPAC Tétracène …   Wikipédia en Français

  • Naphtacène — Tétracène Tétracène Structure du tétracène Général Nom IUPAC Tétracène …   Wikipédia en Français

  • OFET — An Organic Field Effect Transistor (OFET) is a field effect transistor using an organic semiconductor in its channel. OFETs can be prepared either by vacuum evaporation of small molecules, or by solution casting of polymers or small molecules.… …   Wikipedia

  • Chrysène — Structure du chrysène Général Nom IUPAC chrysène …   Wikipédia en Français


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