Local Charge Injection and Extraction on Surface-Modified Al2O3Nanoparticles in LDPE

QC 20161006
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.

Pallon, Love,1984-KTH,Fiber- och polymerteknologi(Swepub:kth)u1hd6isx (author)
Hedenqvist, Mikael S.KTH,Fiber- och polymerteknologi(Swepub:kth)u10rkaxe (author)
Gedde, Ulf W.KTH,Fiber- och polymerteknologi(Swepub:kth)u1j56evm (author)
Haviland, DavidKTH,Nanostrukturfysik(Swepub:kth)u1tke538 (author)
KTHNanostrukturfysik (creator_code:org_t)

In:Nano letters (Print): American Chemical Society (ACS)16:9, s. 5934-59371530-69841530-6992

By the author/editor: Borgani, Riccard ...; Pallon, Love, 19 ...; Hedenqvist, Mika ...; Gedde, Ulf W.; Haviland, David

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