Nano letters, 2010-05, Vol.10 (5), p.1754-1758
2010
Volltextzugriff (PDF)
Details
- Autor(en) / Beteiligte
- Titel
- Polarization-Driven Stark Shifts in Quantum Dot Luminescence from Single CdSe/oligo-PPV Nanoparticles
- Ist Teil von
- Nano letters, 2010-05, Vol.10 (5), p.1754-1758
- Ort / Verlag
- Washington, DC: American Chemical Society
- Erscheinungsjahr
- 2010
- Quelle
- MEDLINE
- Beschreibungen/Notizen
- We demonstrate polarization-induced spectral shifts and associated linearly polarized absorption and emission in single CdSe/oligo-(phenylene vinylene) (CdSe/OPV) nanoparticles. A mechanism for these observations is presented in which charge separation from photoexcited ligands results in a significant Stark distortion of the quantum dot electron/hole wavefunctions. This distortion results in an induced linear polarization and an associated red shift in band-edge photoluminescence. These studies suggest the use of single quantum dots as local charge mobility probes.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1530-6984eISSN: 1530-6992DOI: 10.1021/nl1001789Titel-ID: cdi_osti_scitechconnect_1064689
- Format
- –
- Schlagworte
- Applied sciences, Cadmium Compounds - chemistry, Computer Simulation, Condensed matter: electronic structure, electrical, magnetic, and optical properties, Cross-disciplinary physics: materials science, rheology, Crystallization - methods, Electronics, Exact sciences and technology, Luminescent Measurements - methods, Macromolecular Substances - chemistry, Materials science, Materials Testing, Models, Chemical, Molecular Conformation, Molecular electronics, nanoelectronics, Nanocrystalline materials, Nanoscale materials and structures: fabrication and characterization, NANOSCIENCE AND NANOTECHNOLOGY, Nanostructures - chemistry, Nanostructures - ultrastructure, Nanotechnology - methods, Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation, Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures, Particle Size, Physics, Quantum Dots, Refractometry - methods, Selenium Compounds - chemistry, Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices, solar (photovoltaic), charge transport, materials and chemistry by design, synthesis (novel materials), synthesis (self-assembly), Surface Properties