Electric field effect on the spin alignment of triplet traps of 4,4'-Dichlorobenzophenone crystal

✍ Scribed by S.J. Sheng; M.A. El-Sayed

• Publisher: Elsevier Science
• Year: 1977
• Tongue: English
• Weight: 587 KB
• Volume: 45
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(77)85198-1

✦ Synopsis

The spin ahgnment of tripIet traps of the polar 4,4'dichlorobenzophenone neat crystal is changed by applying an external electric field which results in a change of the phosphorescence intensity and phosphorescence microwave double resonance (PhIDR) signals. Thus and the results of other experiments C&I best be explained if one assumes that the field modifies the triplet -rather than singlet -exciton dynamics. A possible field-induced change in the radiative properties of the spin levels of the shallow traps (13-l 7 cm-t ) is also observed.