6533b7d9fe1ef96bd126c097

RESEARCH PRODUCT

Luminescence dynamics of hybrid ZnO nanowire/CdSe quantum dot structures

Friederike AlbrechtSiegfried R. WaldvogelAndreas MenzelTobias VossTobias VossJürgen GutowskiSebastian ReschStephanie BleyMargit Zacharias

subject

010302 applied physicsPhotocurrentPhotoluminescenceMaterials sciencebusiness.industryPhotoconductivityNanowire02 engineering and technologyElectronic structure021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesElectron transferQuantum dot0103 physical sciencesOptoelectronics0210 nano-technologybusinessLuminescence

description

Colloidal CdSe quantum dots (QDs) functionalized with different organic linker molecules are attached to ZnO nanowires (NWs) to investigate the electron transfer dynamics between dots and wires. After linking the quantum dots to the nanowires, the photo-induced electron transfer (PET) from the QDs into the NWs becomes visible in the PL transients by a decrease of dot luminescence decay time. The different recombination paths inside the QDs and the PET process are discussed in the framework of a rate equation model. Photoconductivity studies confirm the electron transfer by demonstrating a strong enhancement of the wire photocurrent under light irradiation into the dot transition. (© 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)

yearjournalcountryeditionlanguage
2016-02-25physica status solidi c
https://doi.org/10.1002/pssc.201510253