Evidence for exciton confinement in crystalline organic multiple quantum wells
- 20 May 1991
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 66 (20), 2649-2652
- https://doi.org/10.1103/physrevlett.66.2649
Abstract
Multiple-quantum-well structures based on two crystalline organic semiconductors, namely, 3,4,9,10 perylenetetracarboxylic dianhydride and 3,4,7,8 naphthalenetetracarboxylic dianhydride, have been grown by organic molecular-beam deposition. Both optical-absorption and time-resolved photoluminescence measurements reveal a significant effect on the binding energy and the radiative recombination probability of excitons due to localization of carriers. Variational calculations of the ground-state exciton energy in quantum wells have been done, and the results agree with the experimental data. This provides evidence for exciton confinement in organic quantum-well structures.Keywords
This publication has 15 references indexed in Scilit:
- Optical waveguides in crystalline organic semiconductor thin filmsApplied Physics Letters, 1991
- Quasi-epitaxial growth of organic multiple quantum well structures by organic molecular beam depositionApplied Physics Letters, 1990
- Optical and electrical properties of isotype crystalline molecular organic heterojunctionsJournal of Applied Physics, 1989
- Organic Electroluminescent Device with a Three-Layer StructureJapanese Journal of Applied Physics, 1988
- Two-layer organic photovoltaic cellApplied Physics Letters, 1986
- Recombination Enhancement due to Carrier Localization in Quantum Well StructuresPhysical Review Letters, 1983
- Wannier exciton in quantum wellsPhysical Review B, 1983
- Exciton binding energy in quantum wellsPhysical Review B, 1982
- Charge-transfer excitons in anthracene crystals and their role in optical charge carrier generationChemical Physics Letters, 1980
- Organic Molecular CrystalsPublished by Springer Nature ,1980