Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Electrochemical observation of a metal/insulator transition by scanning electrochemical microscopy
Autore:
Quinn, BM; Prieto, I; Haram, SK; Bard, AJ;
Indirizzi:
Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA Univ Texas Austin TX USA 78712 Dept Chem & Biochem, Austin, TX 78712 USA Univ Vigo, Fac Sci, Dept Phys Chem, Vigo 36200, Spain Univ Vigo Vigo Spain 36200 o, Fac Sci, Dept Phys Chem, Vigo 36200, Spain
Titolo Testata:
JOURNAL OF PHYSICAL CHEMISTRY B
fascicolo: 31, volume: 105, anno: 2001,
pagine: 7474 - 7476
SICI:
1520-6106(20010809)105:31<7474:EOOAMT>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
METAL-INSULATOR-TRANSITION; ELECTRON-TRANSFER; NANOCRYSTAL SUPERLATTICES; AIR/WATER INTERFACE; QUANTUM NANODOTS; MONOLAYERS; DISORDER; ARRAYS; FILMS; SECM;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
39
Recensione:
Indirizzi per estratti:
Indirizzo: Bard, AJ Univ Texas, Dept Chem & Biochem, Austin, TX 78712 USA Univ TexasAustin TX USA 78712 m & Biochem, Austin, TX 78712 USA
Citazione:
B.M. Quinn et al., "Electrochemical observation of a metal/insulator transition by scanning electrochemical microscopy", J PHYS CH B, 105(31), 2001, pp. 7474-7476

Abstract

We report the novel use of the scanning electrochemical microscope (SECM) to follow the compression of a monolayer of monodisperse silver thiol-capped nanoparticles on a Langmuir trough. SECM allowed the direct electrochemical visualization of the lateral connectivity of the particles in the film at the air/water interface through monitoring the transition from negative feedback (insulating substrate) to positive feedback (conducting substrate) at the Pt SECM tip, with ferrocene methanol (FcMeOH) as the redox mediator,as the interparticle separation decreased by compressing the film. The transition from an insulating to conductive behavior with compression could thus be followed.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/09/20 alle ore 21:34:40