Effects of a magnetic field on triplet-triplet annihilation in a Pt-phthalocyanine single crystal at 4.2 K

✍ Scribed by K. Kaneto; K. Yoshino; Y. Inuishi

• Publisher: Elsevier Science
• Year: 1976
• Tongue: English
• Weight: 273 KB
• Volume: 40
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(76)85129-9

✦ Synopsis

Mutual annihilation of triplet excitons in

Pt-phthalocyanine single crystal at 4.2 K has been studiti under magnetic fieIds of up to 100 kG through the measurement of the phosphorescence decay by Q-switched ruby laser excitation_ The maximum annihilation rate y which is larger than that of zero magnetic field by 40~50% is obtained at magnetic fields of 30-40 kG. The annihilation rate 7 is of the order of lo-** cm3/s.