Thermally stimulated electron emission from the K-Bi-graphite intercalation compound

✍ Scribed by J Chrzanowski; M Nowicki; B Sujak; R Klimkiewicz; A.W Morawski

• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 312 KB
• Volume: 31
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(93)90107-l

✦ Synopsis

Abet-Preliminary

investigations of the thermostimulated electron emission (TSEE) from intercalate type K,.,Bi&,, in the 300400 K temperature range, were performed. The total and partial pressure in the apparatus during heating and cooling of the sample were 'also recorded. A maximum in the electron emission at a temperature of about 320 K, and a drastic rise in the electron emission, which was accompanied by a rise in the total ambient pressure at 570 K, were observed. The increase of partial pressures of H,O, CO (NJ, and CO* contribute to the total pressure as measured at 570 K by means of the unipole mass spectrometer (UFM). The activation energy, using the method of numerical curve fitting, was calculated to be E = 0.72 eV for the 320 K peak.