Changes in the morphology and optical absorption of colloidal silver reduced with formic acid in the polymer matrix under UV irradiation

被引：58

作者：

Rogach, AL ^{[1
]}

Shevchenko, GP ^{[1
]}

Afanaseva, ZM ^{[1
]}

Sviridov, VV ^{[1
]}

机构：

[1] BELARUSSIAN STATE UNIV, PHYSICOCHEM RES INST, MINSK 220080, BELARUS

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 1997年 / 101卷 / 41期

关键词：

D O I：

10.1021/jp971350j

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The influence of the UV irradiation on the morphology and optical properties of nanosize colloidal silver particles formed in the poly(vinyl alcohol) matrix containing Ag+ and formic acid was investigated. Formation of both filament and ultrafine silver particles accompanied by a strong blue shift of the silver plasmon absorption band from 425 to 385 nm was observed under UV irradiation. The mechanism of the electron accumulation on silver particles is proposed to explain the observed morphological and spectral changes.

引用

页码：8129 / 8132

页数：4

共 39 条

[1]

ARTEMEV MV, 1990, P BELARUS ACAD SCI C, V3, P33

[2] DIELECTRIC-CONSTANTS OF SILVER PARTICLES FINELY DISPERSED IN A GELATIN FILM [J].

ASHRIT, PV ;

BADER, G ;

BADILESCU, S ;

GIROUARD, FE ;

NGUYEN, LQ ;

TRUONG, VV .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (01) :602-606

[3] ELECTROLYTIC GROWTH OF DENDRITES FROM IONIC SOLUTIONS [J].

BARTON, JL ;

BOCKRIS, JO .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1962, 268 (1335) :485-&

[4] COLOUR AND COVERING POWER OF SILVER PARTICLES [J].

BERRY, CR ;

SKILLMAN, DC .

JOURNAL OF PHOTOGRAPHIC SCIENCE, 1969, 17 (05) :145-&

[5] POTENTIAL DEPENDENCE OF SURFACE-ENHANCED RAMAN-SCATTERING FROM CITRATE ON COLLOIDAL SILVER [J].

BLATCHFORD, CG ;

SIIMAN, O ;

KERKER, M .

JOURNAL OF PHYSICAL CHEMISTRY, 1983, 87 (14) :2503-2508

[6]

Bohren CF., 2008, ABSORPTION SCATTERIN

[7]

BRANITSKY GA, 1986, P INT C PHOT SCI COL, V459

[8]

Calvert J.G., 1966, Photochemistry

[9]

FARNELL GC, 1981, J PHOTOGR SCI, V29, P236

[10] REDUCTION OF AG+ IN AQUEOUS POLYANION SOLUTION - SOME PROPERTIES AND REACTIONS OF LONG-LIVED OLIGOMERIC SILVER CLUSTERS AND METALLIC SILVER PARTICLES [J].

HENGLEIN, A ;

LINNERT, T ;

MULVANEY, P .

BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1990, 94 (12) :1449-1457

← 1 2 3 4 →