Journal article
Electron accepting naphthalene bisimide ligand architectures for modulation of pi-pi stacking in nanocrystal hybrid materials
Nanoscale horizons, v 5(11), pp 1509-1514
01 Nov 2020
PMID: 33103695
Abstract
Investigation of charge transfer in quantum dot (QD) systems is an area of great interest. Specifically, the relationship between capping ligand and rate of charge transfer has been studied as a means to optimize these materials. To investigate the role of ligand interaction on the QD surface for electron transfer, we designed and synthesized a series of ligands containing an electron accepting moiety, naphthalene bisimide (NBI). These ligands differ in their steric bulk: as one allows for pi-pi stacking between the NBI moieties at high surface coverages, while the other does not, allowing for a direct comparison of these effects. Once grafted onto QDs, these hybrid materials were studied using UV-Vis, fluorescence, and transient absorption spectroscopy. Interestingly, the sample with the fastest electron transfer was not the sample with the most NBI pi-pi stacking, it was instead where these ligands were mixed amongst oleic acid, breaking up H-aggregates between the NBI groups.
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Details
- Title
- Electron accepting naphthalene bisimide ligand architectures for modulation of pi-pi stacking in nanocrystal hybrid materials
- Creators
- Katherine C. Elbert - University of PennsylvaniaMohammad M. Taheri - Drexel UniversityNatalie Gogotsi - University of PennsylvaniaJungmi Park - University of PennsylvaniaJason B. Baxter - Drexel UniversityChristopher B. Murray - University of Pennsylvania
- Publication Details
- Nanoscale horizons, v 5(11), pp 1509-1514
- Publisher
- Royal Soc Chemistry
- Number of pages
- 6
- Grant note
- CHE-1709827; CHE-1708991 / NSF; National Science Foundation (NSF) DGE-1321851 / NSF Graduate Research Fellowship Program; National Science Foundation (NSF)
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Chemical and Biological Engineering
- Web of Science ID
- WOS:000582397500006
- Scopus ID
- 2-s2.0-85094636184
- Other Identifier
- 991019168849004721
InCites Highlights
Data related to this publication, from InCites Benchmarking & Analytics tool:
- Collaboration types
- Domestic collaboration
- Web of Science research areas
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology