Charge carrier photogeneration in titanyl phthalocyanine was investigated by means of fluorescence and photocurrent measurements, under sample excitation by two time-separated ultrashort light pulses. Exciton-exciton annihilation was employed to obtain information on the time course of the fluoresce
Charge-carrier photogeneration in doped metal-free phthalocyanine
β Scribed by E.Roland Menzel; Rafik O Loutfy
- Publisher
- Elsevier Science
- Year
- 1980
- Tongue
- English
- Weight
- 545 KB
- Volume
- 72
- Category
- Article
- ISSN
- 0009-2614
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β¦ Synopsis
Photoconductrvtty
and clrctrtc-field-Induced fluorescence quenchmg measurements on X-metal-free phthaloc)anme photovoltatc cells show that doprnp arth metal-phthalocyanmes can both tncrease charpe-carner photogeneration and decrease cell reststance. Charge-carrier photogrneratton appears to be e\trmstc, tnvolvtnp field-asststed ewtplex dtssoctatton
π SIMILAR VOLUMES
Long-lived triplet excitons are generated by laser excitation of a zinc porphyrin Langmuir-Blodgett film. The transient T-T spectrum is similar to that obtained in the liquid phase and the triplet excitons disappear with second-order kinetics by T-T annihilation. Their half-life varies from 1 lo? 10
A time solution of the excimerΒ±ion pair system is presented here with a special attention to the time asymptote. The influence of the parameters of the excimerΒ±ion pair on the photogeneration of free charge carrier process together with a prolonged lifetime of ion pairs was discussed. A large number