Circularly Polarized Electroluminescence from Liquid-Crystalline Chiral Polyfluorenes

✍ Scribed by M. Oda; H.-G. Nothofer; G. Lieser; U. Scherf; S. C. J. Meskers; D. Neher

• Publisher: John Wiley and Sons
• Year: 2000
• Tongue: English
• Weight: 181 KB
• Volume: 12
• Category: Article
• ISSN: 0935-9648
• DOI: 10.1002/(sici)1521-4095(200003)12:5<362::aid-adma362>3.0.co;2-p

✦ Synopsis

cyclic voltammograms were taken for these two carbons by varying the scan rate from 5 mV/s to 50 mV/s, the SNU-2 carbon kept the rectangular-shape up to a scan rate of 20 mV/s (Fig. 5b, solid line). In contrast, the MSC-25 carbon showed a deformed cyclic voltammogram at a scan rate of 10 mV/s and a completely collapsed one at a scan rate of 20 mV/s (Fig. 5b, dotted line). A detailed discussion on the electrochemical studies of the material will be presented in a forthcoming paper.

In conclusion, we have made a new high surface area mesoporous carbon using Al-HMS as a template. From this research we discovered that the pores of HMS are 3D interconnected, unlike the originally proposed disordered hexagonal structure. The EDLC performance of the carbon material was superior to the commercially available carbon MSC-25 due to improved mesoporosity. The CV of the mesoporous carbon showed ideal rectangular shapes at a high scan rate of 20 mV/s.