Facile, hetero-sized nanocluster array fabrication for investigating the nanostructure-dependence of nonvolatile memory characteristics

Autor:	Cw Ahn Chi Won Ahn, Eugene Lee Lee, Is Kang Il-Suk Kang, Mh Kang Min-Ho Kang, Hs Seo Hyun-Sang Seo
Rok vydání:	2011
Předmět:	Fabrication Materials science Nanostructure Mechanical Engineering Bioengineering Nanotechnology General Chemistry Electron Nanoclusters Non-volatile memory Mechanics of Materials Memory cell Cluster (physics) General Materials Science Electrical and Electronic Engineering Ionization energy
Zdroj:	Nanotechnology. 22:254018
ISSN:	1361-6528 0957-4484
DOI:	10.1088/0957-4484/22/25/254018
Popis:	A facile fabrication of a hetero-sized nanocluster array has been demonstrated by using inert-gas condensation at room temperature. The array consisted of 1.5 and 3.2 nm sized gold clusters. The nonvolatile memory characteristics of a memory cell that had a hetero-sized nanocluster array to be used as a charge-trapping layer were compared to those of two cells that had 1.5 and 3.2 nm sized cluster arrays, respectively. While the average cluster size or the average number of electrons trapped in a cluster was reflected in the programming/erasing characteristics, the nanostructure effect was revealed in the retention characteristics, i.e. the proposed cell was found to have the gentlest degradation of the memory window. This can be explained by a preferential pathway for charge-carrier redistribution, caused by the ionization potential difference between the two nanoclusters of different sizes.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47803e158bb615001063842f1a6614e9 https://doi.org/10.1088/0957-4484/22/25/254018 Zobrazit plný text záznamu