Synthesis of hcp-Co nanodisks

被引：583

作者：

Puntes, VF ^{[1
]}

Zanchet, D

Erdonmez, CK

Alivisatos, AP

机构：

[1] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Mat Sci, Berkeley, CA 94720 USA

[3] Lab Nacl Luz Sincrotron, LME, Campinas, SP, Brazil

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2002年 / 124卷 / 43期

关键词：

D O I：

10.1021/ja027262g

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

hcp Co disk-shaped nanocrystals were obtained by rapid decomposition of cobalt carbonyl in the presence of linear amines. Other surfactants, in addition to the amines, like phosphine oxides and oleic acid were used to improve size dispersion, shape control, and nanocrystal stability. Co disks are ferromagnetic in character and they spontaneously self-assemble into long ribbons. X-ray and electron diffraction, electron microscopy, and SQUID magnetometry have been employed to characterize this material.

引用

页码：12874 / 12880

页数：7

共 21 条

[1] Aggregation-based crystal growth and microstructure development in natural iron oxyhydroxide biomineralization products [J].

Banfield, JF ;

Welch, SA ;

Zhang, HZ ;

Ebert, TT ;

Penn, RL .

SCIENCE, 2000, 289 (5480) :751-754

[2]

CHAUDRET B, COMMUNICATION

[3]

Dinega DP, 1999, ANGEW CHEM INT EDIT, V38, P1788, DOI 10.1002/(SICI)1521-3773(19990614)38:12<1788::AID-ANIE1788>3.0.CO

[4]

2-2

[5] Linearly polarized emission from colloidal semiconductor quantum rods [J].

Hu, JT ;

Li, LS ;

Yang, WD ;

Manna, L ;

Wang, LW ;

Alivisatos, AP .

SCIENCE, 2001, 292 (5524) :2060-2063

[6] Photoinduced conversion of silver nanospheres to nanoprisms [J].

Jin, RC ;

Cao, YW ;

Mirkin, CA ;

Kelly, KL ;

Schatz, GC ;

Zheng, JG .

SCIENCE, 2001, 294 (5548) :1901-1903

[7]

Klausen SN, 2002, PHYS STATUS SOLIDI A, V189, P1039, DOI 10.1002/1521-396X(200202)189:3<1039::AID-PSSA1039>3.0.CO

[8]

2-A

[9] Synthesis of soluble and processable rod-, arrow-, teardrop-, and tetrapod-shaped CdSe nanocrystals [J].

Manna, L ;

Scher, EC ;

Alivisatos, AP .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (51) :12700-12706

[10] CRYSTALLIZATION OF OPALS FROM POLYDISPERSE NANOPARTICLES [J].

OHARA, PC ;

LEFF, DV ;

HEATH, JR ;

GELBART, WM .

PHYSICAL REVIEW LETTERS, 1995, 75 (19) :3466-3469

← 1 2 3 →