mardi 8 janvier 2019

Rubrene

Rubrene (112-tetraphenyltetracene) is a red colored polycyclic aromatic hydrocarbon. Rubrene is used as a sensitiser in chemoluminescence and as a yellow light source in lightsticks. Find product specific information including CAS, MSDS, protocols and references. Cette découverte laisse entrevoir de. C at 7mmHg Molar Volume ‎: ‎452.


The optical absorption and photoluminescence spectra of organic molecular crystals depend on the optical properties of the molecules, on the way the molecules are arranged in the crystal matrix, and how the molecules interact with each other. The rubrene single crystal has a large optical anisotropy that has a . Correlations among the molecular structure, crystal structure, electronic structure, and charge-carrier transport phenomena have been derived from six congeners ( 2–7) of rubrene (1). The congeners were synthesized via a three-step route from known 11-dichloro-12-tetracenedione.


We report on the fabrication and characterization of the organic field-effect transistors (OFETs) on the surface of single crystals of rubrene. The parylene polymer film has been used as the gate insulator. At room temperature, these OFETs exhibit the p-type conductivity with the field-effect mobility 0. We report a study of impurity effects on the electron transport of rubrene single crystals. A significant improvement of electron carrier mobility up to 0. V s is achieved by performing multiple purifications of single crystals and device aging inside an N2-filled glove box. Here we investigate how the deformation affects the field-effect mobility of single crystals of the benchmark semiconductor rubrene.


The wrinkling instability is used to apply local strains of different magnitudes along the conducting channel in field-effect transistors. We discover that the mobility changes as . We systematically studied the electronic structures and conducting properties of rubrene and its derivatives reported recently, and disscussed the influences of electron-withdrawing groups and chemical oxidation on the reorganization energies, crystal packing, electronic couplings, and charge injection . Single crystal rubrene is a model organic electronic material showing high carrier mobility and long exciton lifetime. These properties are detrimentally affected when rubrene is exposed to intense light under ambient conditions for prolonged periods of time, possibly due to oxygen up-take.


The rapid spontaneous photo-oxidation of rubrene to form endo-peroxide, rubrene -Ox was monitored via 1H NMR and UV-Vis spectroscopy. The reaction is thermally reversible, which restores high mobility devices in both the crystalline thin film and single crystal. Prolonged stirring in chlorinated solvents yi.


Numbering as follows: (1)-spectra from the center, (2)-close to the border of the spherulite, (3)- from amorphous matrix. Number is also used for the closed layer, where all spherulites are coalesced. Rubrene powder and mica substrate spectra are also shown as reference. Rubrene is an organic semiconductor used in organic light-emitting diodes ( OLEDs) and organic field-effect transistors.


It is used as a sensitizer in chemoluminesence. It is also used to prepare single crystal transistors. It acts as a reagent for chemiluminescence research and for transition metal complex ligation.

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