Photoconductivity of the Polymer Layer with Resazurin Sodium at Two-photon Excitation
| Authors | T.M. Sakun |
| Affiliations | National Aviation University, 1, Komarova Pr., Kyiv, Ukraine |
| Е-mail | tasa2008@ukr.net |
| Issue | Volume 5, Year 2013, Number 4 |
| Dates | Received 08 July 2013; published online 31 January 2014 |
| Citation | T.M. Sakun, J. Nano- Electron. Phys. 5 No 4, 04052 (2013) |
| DOI | |
| PACS Number(s) | 31.25.Qm, 31.50.w, 36.20.Kd |
| Keywords | Resazurin sodium, Two-quantum excitation, Photodissociation, Photoconductive hole matrix, Polyvinylpyrrolidone. |
| Annotation | Experimental and theoretical studies of the photoconductivity of the polymer layer (PVP) with resazurin solution at two-photon excitation revealed that the two-quantum excitation in T(*)- state which corresponds to the quantum transition from a deep -MO on the free *-MO is the cause of the two processes: the electron transfer from the matrix to the dye molecule and dissociation of the dye molecules with the release of oxygen anion. Two-quantum excitation of the molecules in the triplet state which is lower than said T(*)- state prevents dissociation of the molecule, however, significantly increases the acceptor dye properties, enabling electron transfer from the matrix to the photoconductive dye and a hole matrix. The resulting radical anion dye eventually gives extra electron matrix, where it can recombine with a hole or captured by the trap. |
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