Electronic structure of silver subnanowires in self-assembled organic nanotubes: Density functional calculations

被引：33

作者：

Suh, SB ^{[1
]}

Hong, BH

Tarakeshwar, P

Youn, SJ

Jeong, S

Kim, KS

机构：

[1] Pohang Univ Sci & Technol, Natl Creat Res Initiat Ctr Superfunct Mat, Dept Chem, San 31, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, Dept Phys, Pohang 790784, South Korea

来源：

PHYSICAL REVIEW B | 2003年 / 67卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.67.241402

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We use first principles calculations to investigate the structure and electronic properties of ultrathin silver (Ag) nanowires self-synthesized in organic calix[4]hydroquinone (CHQ) nanotubes. The insulating CHQ nanotubes get transformed to semiconducting calix[4]diquinone-dihydroquinone (CQHQ) tubes in the presence of Ag. These encapsulated nanowires have linear crystalline structure. The electron density around the Fermi level is localized on the Ag nanowire. This indicates that the organic tubes act as shields between Ag nanowires, and the quantum confinement is possible in the encapsulated Ag nanowires like in quantum dots.

引用

页数：4

共 50 条

[1] CONDUCTANCE STEPS AND QUANTIZATION IN ATOMIC-SIZE CONTACTS [J].

AGRAIT, N ;

RODRIGO, JG ;

VIEIRA, S .

PHYSICAL REVIEW B, 1993, 47 (18) :12345-12348

[2] QUANTIZED CONDUCTANCE IN ATOM-SIZED WIRES BETWEEN 2 METALS [J].

BRANDBYGE, M ;

SCHIOTZ, J ;

SORENSEN, MR ;

STOLTZE, P ;

JACOBSEN, KW ;

NORSKOV, JK ;

OLESEN, L ;

LAEGSGAARD, E ;

STENSGAARD, I ;

BESENBACHER, F .

PHYSICAL REVIEW B, 1995, 52 (11) :8499-8514

[3] ENORMOUS ENHANCEMENT OF VANDERWAALS FORCES BETWEEN SMALL SILVER PARTICLES [J].

BURTSCHER, H ;

SCHMIDTOTT, A .

PHYSICAL REVIEW LETTERS, 1982, 48 (25) :1734-1737

[4] GROUND-STATE OF THE ELECTRON-GAS BY A STOCHASTIC METHOD [J].

CEPERLEY, DM ;

ALDER, BJ .

PHYSICAL REVIEW LETTERS, 1980, 45 (07) :566-569

[5] Filling of carbon nanotubes with silver, gold, and gold chloride [J].

Chu, A ;

Cook, J ;

Heesom, RJR ;

Hutchison, JL ;

Green, MLH ;

Sloan, J .

CHEMISTRY OF MATERIALS, 1996, 8 (12) :2751-2754

[6] Conductance quantization in bismuth nanowires at 4 K [J].

CostaKramer, JL ;

Garcia, N ;

Olin, H .

PHYSICAL REVIEW LETTERS, 1997, 78 (26) :4990-4993

[7] Backbone-induced semiconducting behavior in short DNA wires [J].

Cuniberti, G ;

Craco, L ;

Porath, D ;

Dekker, C .

PHYSICAL REVIEW B, 2002, 65 (24) :2413141-2413144

[8] THE ANATOMY OF A-DNA, B-DNA, AND Z-DNA [J].

DICKERSON, RE ;

DREW, HR ;

CONNER, BN ;

WING, RM ;

FRATINI, AV ;

KOPKA, ML .

SCIENCE, 1982, 216 (4545) :475-485

[9] Gold nanowires and their chemical modifications [J].

Häkkinen, H ;

Barnett, RN ;

Landman, U .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (42) :8814-8816

[10] Ultrathin single-crystalline silver nanowire arrays formed in an ambient solution phase [J].

Hong, BH ;

Bae, SC ;

Lee, CW ;

Jeong, S ;

Kim, KS .

SCIENCE, 2001, 294 (5541) :348-351

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