Effect of an electric field on the dissociation of electron-hole pairs interacting with triplet excitons in amorphous molecular semiconductors
| Autor: | N. G. Kuvshinskii, N. A. Davidenko |
|---|---|
| Rok vydání: | 1997 |
| Předmět: |
Materials science
Condensed Matter::Other business.industry Exciton Photoconductivity Carrier generation and recombination Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Mathematics::Algebraic Topology Dissociation (chemistry) Electronic Optical and Magnetic Materials Amorphous solid Condensed Matter::Materials Science Semiconductor Electric field Singlet state Atomic physics business |
| Zdroj: | Physics of the Solid State. 39:916-919 |
| ISSN: | 1090-6460 1063-7834 |
| DOI: | 10.1134/1.1130002 |
| Popis: | The photoconductivity of amorphous molecular semiconductor films increases with the simultaneous photogeneration of singlet electron-hole pairs (EHPs) and triplet excitons but decreases when singlet EHPs are replaced by triplet EHPs. As the electric field increases, the influence of the triplet excitons on the photoconductivity of the films due to the dissociation of EHPs becomes less. It is concluded that as the electric field increases, the current-carrier mobility increases and the dissociation rate of EHPs becomes comparable to the spinconversion rate of EHPs interacting with triplet excitons. |
| Databáze: | OpenAIRE |
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