Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Photochromic properties of MoO3 and Au nanoparticles composite thin films
Autore:
He, T; Yin, YH; Ma, Y; Jiang, P; Cao, YA; Yao, JN;
Indirizzi:
Chinese Acad Sci, Inst Chem, Lab Photochem, Ctr Mol Sci, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China Chinese Acad Sci, Inst Phys, Ctr Condensed Matter Phys, Beijing Lab VacuumPhys, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 100080, Peoples R China
Titolo Testata:
CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
fascicolo: 5, volume: 22, anno: 2001,
pagine: 824 - 826
SICI:
0251-0790(200105)22:5<824:PPOMAA>2.0.ZU;2-W
Fonte:
ISI
Lingua:
CHI
Soggetto:
ELECTROCHROMISM;
Keywords:
MoO3; gold nanoparticles; photochromism; composite thin films;
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
8
Recensione:
Indirizzi per estratti:
Indirizzo: Yao, JN Chinese Acad Sci, Inst Chem, Lab Photochem, Ctr Mol Sci, Beijing 100080, Peoples R China Chinese Acad Sci Beijing Peoples R China 100080 Peoples R China
Citazione:
T. He et al., "Photochromic properties of MoO3 and Au nanoparticles composite thin films", CHEM J CH U, 22(5), 2001, pp. 824-826

Abstract

1-Nonanethiol capped gold nanoparticles were firstly used to modify the surface of MoO3 thin films in order to fabricate the MoO3/Au composite thin film. Absorption experiments and XPS measurements were used to investigate the effect of Au nanoparticles on the photochromic properties of the composite thin film. According to the XPS measurements, the binding energy for thevalence band (O-2p) of the composite thin films decreased. The experimental results of absorbance showed that the photochromic efficiency for the composite thin films became at least as two times as that of MoO3 thin films. The mechanism of enhancement can be explained by the band energy theory of semiconductor. The Schottky barrier formed at the interface prolonged the electron-hole pair separation lifetime and resulted in the enhancement of the photochromic efficiency.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 03/04/20 alle ore 04:28:05