Local Charge Injection and Extraction on Surface-Modified Al2O3 Nanoparticles in LDPE.
basic_science · Level V
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- Record sourced from PubMed, PMID 27532486.
- Also identified by DOI 10.1021/acs.nanolett.6b02920.
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Abstract
We use a recently developed scanning probe technique to image with high spatial resolution the injection and extraction of charge around individual surface-modified aluminum oxide nanoparticles embedded in a low-density polyethylene (LDPE) matrix. We find that the experimental results are consistent with a simple band structure model where localized electronic states are available in the band gap (trap states) in the vicinity of the nanoparticles. This work offers experimental support to a previously proposed mechanism for enhanced insulating properties of nanocomposite LDPE and provides a powerful experimental tool to further investigate such properties.