Interfacing Metal Nanoparticles with Semiconductor Nanowires

被引：39

作者：

Jen-La Plante, Ilan ^{[1
]}

Habas, Susan E. ^{[1
]}

Yuhas, Benjamin D. ^{[2
]}

Gargas, Daniel J. ^{[2
]}

Mokari, Taleb ^{[1
]}

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

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

来源：

CHEMISTRY OF MATERIALS | 2009年 / 21卷 / 15期

关键词：

SELECTIVE GROWTH; NANORODS; CDS; NANOSTRUCTURES; NANOCRYSTALS; BINARY; HETEROSTRUCTURES; PHOTODEPOSITION; POINT; RODS;

D O I：

10.1021/cm900775w

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：

We demonstrate the overgrowth of Au on CdSe nanowires with control over An crystal morphology upon increasing addition of An precursor. Extending this overgrowth technique to catalytically active metals and binary metal systems (Pt, PtCo, and PtNi) exemplifies the broader range of these metal-semiconductor hybrid nanomaterials. Structural and compositional characterization was carried out by low- and high-resolution TEM, EDS analysis, and XRD. Magnetic characterization of the PtCo binary metal hybrid systems was conducted using SQUID magneto-metry. Changes in the optical properties of the decorated materials compared to the as-made CdSe nanowires confirm the presence of electronic coupling at the metal-semiconductor interface, an important material property for photocatalytic applications.

引用

页码：3662 / 3667

页数：6

共 30 条

[1] Seeded growth of asymmetric binary nanocrystals made of a semiconductor TiO2 rodlike section and a magnetic γ-Fe2O3 spherical domain [J].

Buonsanti, Raffaella ;

Grillo, Vincenzo ;

Carlino, Elvio ;

Giannini, Cinzia ;

Curri, Maria Lucia ;

Innocenti, Claudia ;

Sangregorio, Claudio ;

Achterhold, Klaus ;

Parak, Fritz Guenter ;

Agostiano, Angela ;

Cozzoli, Pantaleo Davide .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2006, 128 (51) :16953-16970

[2] Topologically controlled growth of magnetic-metal-functionalized semiconductor oxide nanorods [J].

Casavola, Marianna ;

Grillo, Vincenzo ;

Carlino, Elvio ;

Giannini, Cinzia ;

Gozzo, Fabia ;

Fernandez Pinel, Enrique ;

Angel Garcia, Miguel ;

Manna, Liberato ;

Cingolani, Roberto ;

Davide Cozzoli, Pantaleo .

NANO LETTERS, 2007, 7 (05) :1386-1395

[3] Synthesis, properties and perspectives of hybrid nanocrystal structures [J].

Cozzoli, Pantaleo Davide ;

Pellegrino, Teresa ;

Manna, Liberato .

CHEMICAL SOCIETY REVIEWS, 2006, 35 (11) :1195-1208

[4] Electrical transport through a single nanoscale semiconductor branch point [J].

Cui, Y ;

Banin, U ;

Björk, MT ;

Alivisatos, AP .

NANO LETTERS, 2005, 5 (07) :1519-1523

[5] Photodeposition of Pt on Colloidal CdS and CdSe/CdS Semiconductor Nanostructures [J].

Dukovic, Gordana ;

Merkle, Maxivell G. ;

Nelson, Jaines H. ;

Hughes, Steven M. ;

Alivisatos, A. Paul .

ADVANCED MATERIALS, 2008, 20 (22) :4306-4311

[6] DYNAMICS OF LIGHT-INDUCED WATER CLEAVAGE IN COLLOIDAL SYSTEMS [J].

DUONGHONG, D ;

BORGARELLO, E ;

GRATZEL, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1981, 103 (16) :4685-4690

[7] Growth of Photocatalytic CdSe-Pt Nanorods and Nanonets [J].

Elmalem, Einat ;

Saunders, Aaron E. ;

Costi, Ronny ;

Salant, Asaf ;

Banin, Uri .

ADVANCED MATERIALS, 2008, 20 (22) :4312-4317

[8] Functionalization of electrospun TiO2 nanofibers with Pt nanoparticles and nanowires for catalytic applications [J].

Formo, Eric ;

Lee, Eric ;

Campbell, Dean ;

Xia, Younan .

NANO LETTERS, 2008, 8 (02) :668-672

[9] Solution-based straight and branched CdSe nanowires [J].

Grebinski, JW ;

Hull, KL ;

Zhang, J ;

Kosel, TH ;

Kuno, M .

CHEMISTRY OF MATERIALS, 2004, 16 (25) :5260-5272

[10] Synthesis and characterization of Au/Bi Core/Shell nanocrystals: A precursor toward II-VI nanowires [J].

Grebinski, JW ;

Richter, KL ;

Zhang, J ;

Kosel, TH ;

Kuno, M .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (28) :9745-9751

← 1 2 3 →