STRUCTURAL-ANALYSIS OF SMALL VAPOR-DEPOSITED MULTIPLY TWINNED GOLD PARTICLES

被引：25

作者：

YANG, CY ^{[1
]}

HEINEMANN, K ^{[1
]}

YACAMAN, MJ ^{[1
]}

POPPA, H ^{[1
]}

机构：

[1] STANFORD UNIV,NASA,AMES RES CTR,JOINT INST SPACE & MICROSTRUCT RES,MOFFETT FIELD,CA 94035

来源：

THIN SOLID FILMS | 1979年 / 58卷 / 01期

关键词：

D O I：

10.1016/0040-6090(79)90231-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

High resolution selected zone dark field, Bragg reflection imaging and weak beam dark field techniques of transmission electron microscopy were used to determine the structure of small gold particles vapor deposited on NaCl substrates. Attention was focused on the analysis of those in the 50-150 Å range that have pentagonal or hexagonal bright field profiles. These particles have been previously described as multiply twinned crystallites composed of face-centered cubic tetrahedra. The experimental evidence of the present studies can be interpreted on the assumption that the particle structure is a regular icosahedron or decahedron for the hexagonal or the pentagonal particles respectively. The icosahedron is a multiply twinned rhombohedral crystal and the decahedron is a multiply twinned body-centered orthorhombic crystal, each of which constitutes a slight distortion from the face-centered cubic structure. © 1979.

引用

页码：163 / 168

页数：6

共 13 条

[1]

ALLPRESS JG, 1970, AUST J PHYS, V23, P23

[2] STRUCTURE OF SMALL METALLIC PARTICLES [J].

GILLET, M .

SURFACE SCIENCE, 1977, 67 (01) :139-157

[3] SELECTED-ZONE DARK-FIELD ELECTRON-MICROSCOPY [J].

HEINEMANN, K ;

POPPA, H .

APPLIED PHYSICS LETTERS, 1972, 20 (03) :122-+

[4]

HEINEMANN K, J CRYSTAL GROWTH

[5] PHYSICAL CLUSTER MECHANICS - STATICS AND ENERGY SURFACES FOR MONATOMIC SYSTEMS [J].

HOARE, MR ;

PAL, P .

ADVANCES IN PHYSICS, 1971, 20 (84) :161-&

[6] EPITAXIAL GROWTH OF METALS ON ROCKSALT FACES CLEAVED IN VACUUM .2. ORIENTATION AND STRUCTURE OF GOLD PARTICLES FORMED IN ULTRAHIGH VACUUM [J].

INO, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1966, 21 (02) :346-&

[7] MULTIPLY TWINNED PARTICLES AT EARLIER STAGES OF GOLD FILM FORMATION ON ALKALIHALIDE CRYSTALS [J].

INO, S ;

OGAWA, S .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1967, 22 (06) :1365-&

[8] STUDY ON STRUCTURE OF EVAPORATED GOLD PARTICLES BY MEANS OF A HIGH RESOLUTION ELECTRON MICROSCOPE [J].

KOMODA, T .

JAPANESE JOURNAL OF APPLIED PHYSICS, 1968, 7 (01) :27-&

[9] HIGH-RESOLUTION DARK-FIELD ELECTRON-MICROSCOPY OF SMALL METAL PARTICLES [J].

YACAMAN, MJ ;

OCANAZ, T .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1977, 42 (02) :571-577

[10]

YACAMAN MJ, J CRYST GROWTH

← 1 2 →