Results 181 to 190 of about 16,087 (218)

Thermal Decomposition of Pentacene Oxyradicals

The Journal of Physical Chemistry A, 2011
The energetics and kinetics of the thermal decomposition of pentacene oxyradicals were studied using a combination of ab initio electronic structure theory and energy-transfer master equation modeling. The rate coefficients of pentacene oxyradical decomposition were computed for the range of 1500-2500 K and 0.01-10 atm and found to be both temperature ...
Xiaoqing, You, Dmitry Yu, Zubarev, William A, Lester, Michael, Frenklach   +3 more
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Photoresponse of pentacene‐based transistors

physica status solidi (a), 2014
Organic thin film phototransistor (OPTs) devices in bottom‐gate/top‐contact configuration were fabricated and used as analytic system to study the electrical and optical properties of pentacene. The channel of the OTFT devices was illuminated by laser radiation of wavelength 670 nm and the effect of irradiation on the electrical responses of the ...
Loffredo Fausta, Bruno Annalisa, Del Mauro Anna De Girolamo, Grimaldi Immacolata Angelica, Miscioscia Riccardo, Nenna Giuseppe, Pandolfi Giuseppe, Petrosino Mario, Villani Fulvia, Minarini Carla, Facchetti Antonio   +10 more
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Heterofission of pentacene excited singlets in pentacene-doped tetracene crystals

Chemical Physics Letters, 1971
Abstract The magnetic field dependence of the fluorescence of pentacene-doped tetracene single crystals indicates that following energy transfer to pentacene, the trapped pentacene singlet fissions into one tetracene triplet exciton and one pentacene triplet (estimated energy 0.81 ± 0.02 eV).
N.E. Geacintov, J. Burgos, M. Pope, C. Strom   +3 more
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Electroluminescence from Individual Pentacene Nanocrystals

ChemPhysChem, 2010
Keywords: exciton ; luminescence ; nanostructures pentacene ; scanning probe microscopy ; Photon-Emission ; Single-Crystals ; Metal-Surfaces ; Molecules ; Spectroscopy ; States Reference EPFL-ARTICLE-172137doi:10.1002/cphc.201000531View record in Web of Science Record created on 2011-12-16, modified on 2017-05 ...
Kabakchiev, A., Kuhnke, K., Lutz, T., Kern, K.   +3 more
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Toward the peri‐Pentacene Framework

Chemistry – A European Journal, 2013
AbstractBased on modern pyrene chemistry, a new route toward the synthesis of the peri‐pentacene framework was developed. Firstly, the tetraketo form as stable precursor was targeted, because the fully aromatic peri‐pentacene is predicted to suffer from high instability and reactivity.
Zöphel, L., Berger, R., Gao, P., Enkelmann, V., Baumgarten, M., Wagner, M., Müllen, K.   +6 more
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Double Homologation Method for Substituted Soluble Pentacenes and Dimerization Behaviours of Pentacenes

Chemistry – An Asian Journal, 2009
AbstractDouble up: A zirconium‐mediated double homologation method was successfully applied for the synthesis of multi‐substituted pentacene derivatives from 1,2,4,5‐tetrakis(propargyl)benzenes. The bis(zirconacyclopentadiene) intermediates were also characterized.
Shi, Li, Zhiping, Li, Kiyohiko, Nakajima, Ken-ichiro, Kanno, Tamotsu, Takahashi   +4 more
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Photochemical Formation of Substituted Pentacenes

The Journal of Organic Chemistry, 2008
Substituted pentacenes (8a, 8b, 14a, and 14b) were prepared by Strating-Zwanenburg photodecarbonylation of diones (7a, 7b, 13a, and 13b). The compounds are red and stable in the solid state under inert atmosphere as well as in degassed solutions, but not in air.
Yuewei, Zhao, Rajib, Mondal, Douglas C, Neckers   +2 more
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A soluble pentacene: synthesis, EPR and electrochemical studies of 2,3,9,10-tetrakis(trimethylsilyl)pentacene

Chemical Communications, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Siu Hin, Chan, Hung Kay, Lee, Yu Man, Wang, Nan Yan, Fu, Xiao Ming, Chen, Zong Wei, Cai, Henry N C, Wong   +6 more
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Pentacene-Based Dendrimers: Synthesis and Thin Film Photoconductivity Measurements of Branched Pentacene Oligomers

The Journal of Organic Chemistry, 2009
The synthesis of pentacene-based dendrimers has been achieved via esterification of 1,3,5-benzenetricarboxylic acid and unsymmetrical pentacene 4 possessing a hydroxy group. Dendrimers 1 (C(183)H(204)O(9)Si(9), 2800 g mol(-1)) and 2 (C(540)H(570)O(30)Si(24), 8214 g mol(-1)) are characterized by (1)H and (13)C NMR, IR, UV-vis, and fluorescence ...
Dan, Lehnherr, Jianbo, Gao, Frank A, Hegmann, Rik R, Tykwinski   +3 more
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Pentacene based photovoltaic devices

Synthetic Metals, 2001
Photovoltaic diodes based on iodine- and bromine-doped pentacene single crystals as well as thin films (TFs) have been prepared. Two different device structures, a Schottky diode with a Mg/Al back contact and a heterojunction with a ZnO:Al window layer, are investigated.
J.H. Schön, Ch. Kloc, B. Batlogg
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