Ultraviolet photoelectron spectra of C76 and KxC76

✍ Scribed by Shojun Hino; K. Matsumoto; Shinji Hasegawa; Hiroo Inokuchi; Takashi Morikawa; Takashi Takahashi; Kazuhiko Seki; Koichi Kikuchi; Shinzo Suzuki; Isao Ikemoto; Yohji Achiba

• Publisher: Elsevier Science
• Year: 1992
• Tongue: English
• Weight: 531 KB
• Volume: 197
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(92)86018-d

✦ Synopsis

Ultraviolet photoelectron spectra of CT6, one of the fullerene family of compounds, have been measured with a synchroton radiation light source. The photoemission spectral onset is 1.3 eV below the Fermi level, which is equal to that of Cs4 but is about 0.5 eV smaller than that of C6c or CrO. The relative intensity of the photoemission spectral features is independent of the incident photon energy change. Photoemission spectra1 changes for CT6 during potassium dosing are also measured. A new band becomes distinct between the Fermi level and the HOMO band, when the potassium content (x in K,C,,) is equal to or greater than I. 1. The spectral onset moves toward the Fermi level with increasing potassium dosage, approaching it but never crossing it. This indicates that potassium-dosed CT6 could be a narrow gap semiconductor.