Conductance switching in an organic material: from bulk to monolayer

TitleConductance switching in an organic material: from bulk to monolayer
Publication TypeJournal Article
Year of Publication2007
AuthorsRath, AKumar, Pal, AJ
JournalLangmuir
Volume23
Issue19
Pagination9831-9835
Date PublishedSEP
Type of ArticleArticle
Abstract

Fluorescein sodium, which does not exhibit electrical bistability in thin films, can be switched to a high conducting state by the introduction of carbon nanotubes as channels for carrier transport. Thin films based on fluorescein sodium/carbon nanotubes display memory switching phenomenon among a low conducting state and several high conducting states. Read-only and random-access memory applications between the states resulted in multilevel memory in these systems. Results in thin films and in a monolayer (deposited via layer-by-layer assembly) show that instead of different molecular conformers, multilevel conducting states arise from the different density of high conducting fluorescein molecules.

DOI10.1021/la701132f
Funding Agency

Council of Scientific & Industrial Research (CSIR) - India

Type of Journal (Indian or Foreign)Foreign
Impact Factor (IF)3.993
Divison category: 
Physical and Materials Chemistry