Vertically Aligned Cadmium Chalcogenide Nanowire Arrays on Muscovite Mica: A Demonstration of Epitaxial Growth Strategy

被引：90

作者：

Utama, Muhammad Iqbal Bakti ^{[1
]}

Peng, Zeping ^{[1
]}

Chen, Rui ^{[1
]}

Peng, Bo ^{[1
]}

Xu, Xinlong ^{[1
]}

Dong, Yajie ^{[2
]}

Wong, Lai Mun ^{[3
]}

Wang, Shijie ^{[3
]}

Sun, Handong ^{[1
]}

Xiong, Qihua ^{[1
,4
]}

机构：

[1] Nanyang Technol Univ, Div Phys & Appl Phys, Sch Phys & Math Sci, Singapore 637371, Singapore

[2] MIT, Dept Mat Sci & Engn, Cambridge, MA 02139 USA

[3] Agcy Sci Technol & Res, Inst Mat Res & Engn, Singapore 117602, Singapore

[4] Nanyang Technol Univ, Div Microelect, Sch Elect & Elect Engn, Singapore 639798, Singapore

来源：

NANO LETTERS | 2011年 / 11卷 / 08期

基金：

新加坡国家研究基金会;

关键词：

Nanowire array; muscovite mica; cadmium chalcogenides; van der Waals epitaxy; self-catalytic; excitonic states; DER-WAALS EPITAXY; RAMAN-SCATTERING; FILMS; PBS; DEPOSITION;

D O I：

10.1021/nl1034495

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report a strategy for achieving epitaxial, vertically aligned cadmium chalcogenide (CdS, CdSe, and CdTe) nanowire arrays utilizing van der Waals epitaxy with (001) muscovite mica substrate. The nanowires, grown from a vapor transport process, exhibited diameter uniformity throughout their length, sharp interface to the substrate, and positive correlation between diameter and length with preferential growth direction of [0001] for the monocrystalline wurtzite CdS and CdSe nanowires, but of [111] for zinc blende CdTe nanowires, which also featured abundant twinning boundaries. Self-catalytic vapor-liquid-solid mechanism with hydrogen-assisted thermal evaporation is proposed to intepret the observations. Optical absorption from the as-grown CdSe nanowire arrays on mica at 10 K revealed intense first-order exciton absorption and its longitudinal optical phonon replica. A small Stokes shift (similar to 1.3 meV) was identified, suggesting the high quality of the nanowires. This study demonstrated the generality of van der Waals epitaxy for the growth of nanowire arrays and their potential applications in optical and energy related devices.

引用

页码：3051 / 3057

页数：7

共 50 条

[1] Formation of oriented molecular nanowires on mica surface [J].

Akutagawa, T ;

Ohta, T ;

Hasegawa, T ;

Nakamura, T ;

Christensen, CA ;

Becher, J .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2002, 99 (08) :5028-5033

[2] Nanowire photonic circuit elements [J].

Barrelet, CJ ;

Greytak, AB ;

Lieber, CM .

NANO LETTERS, 2004, 4 (10) :1981-1985

[3] Engineering atomic and molecular nanostructures at surfaces [J].

Barth, JV ;

Costantini, G ;

Kern, K .

NATURE, 2005, 437 (7059) :671-679

[4] Direct Observation of the Two Lowest Exciton Zero-Phonon Lines in Single CdSe/ZnS Nanocrystals [J].

Biadala, L. ;

Louyer, Y. ;

Tamarat, Ph. ;

Lounis, B. .

PHYSICAL REVIEW LETTERS, 2009, 103 (03)

[5] Hyperbranched PbS and PbSe nanowires and the effect of hydrogen gas on their synthesis [J].

Bierman, Matthew J. ;

Lau, Y. K. Albert ;

Jin, Song .

NANO LETTERS, 2007, 7 (09) :2907-2912

[6]

COLVIN VL, 1994, NATURE, V370, P354, DOI 10.1038/370354a0

[7] Diameter-controlled synthesis of single-crystal silicon nanowires [J].

Cui, Y ;

Lauhon, LJ ;

Gudiksen, MS ;

Wang, JF ;

Lieber, CM .

APPLIED PHYSICS LETTERS, 2001, 78 (15) :2214-2216

[8] BUILDUP OF ULTRATHIN MULTILAYER FILMS BY A SELF-ASSEMBLY PROCESS .3. CONSECUTIVELY ALTERNATING ADSORPTION OF ANIONIC AND CATIONIC POLYELECTROLYTES ON CHARGED SURFACES [J].

DECHER, G ;

HONG, JD ;

SCHMITT, J .

THIN SOLID FILMS, 1992, 210 (1-2) :831-835

[9]

Dong Y. J., 2010, THESIS HARVARD U

[10] Single-nanowire electrically driven lasers [J].

Duan, XF ;

Huang, Y ;

Agarwal, R ;

Lieber, CM .

NATURE, 2003, 421 (6920) :241-245

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