Carbon-Nanotube-Reinforced Polymer-Derived Ceramic Composites

✍ Scribed by L. An; W. Xu; S. Rajagopalan; C. Wang; H. Wang; Y. Fan; L. Zhang; D. Jiang; J. Kapat; L. Chow; B. Guo; J. Liang; R. Vaidyanathan

• Publisher: John Wiley and Sons
• Year: 2004
• Tongue: English
• Weight: 326 KB
• Volume: 16
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/adma.200306241

✦ Synopsis

calculated from the oxidation potential versus the internal standard of ferrocene/ferrocenium and the I p (5.43 eV) so obtained for PATPD was in good agreement with the I p reported for TPD based materials (5.4 eV determined by UV-PES) [26].

Absorption Spectra: Absorption spectra of the samples were measured with a Cary 5G spectrophotometer.

Dark Conductivity and Photoconductivity: Steady-state conductivity properties were determined in the dark. To measure the steadystate dark conductivity, an electric field (E a ) was applied and the current (i dark ) was measured. To assure steady-state conditions a dwell time of 15 s between each reading was used. The applied electric field was swept from 0 to 76 V lm ±1 over a period of 7 min. The current was measured using a Keithley 6517A electrometer.

Four-Wave Mixing and Exposure Dependent Transient Four-Wave Mixing Experiments: A detailed discussion about the experimental set-up is given in [22].