Catalyst Incorporation at Defects during Nanowire Growth

被引：51

作者：

Hemesath, Eric R. ^{[1
]}

Schreiber, Daniel K. ^{[1
]}

Gulsoy, Emine B. ^{[1
]}

Kisielowski, Christian F. ^{[2
]}

Petford-Long, Amanda K. ^{[1
,3
]}

Voorhees, Peter W. ^{[1
]}

Lauhon, Lincoln J. ^{[1
]}

机构：

[1] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Natl Lab, Natl Ctr Electron Microscopy, Berkeley, CA 94720 USA

[3] Argonne Natl Lab, Ctr Nanoscale Mat, Argonne, IL 60439 USA

来源：

NANO LETTERS | 2012年 / 12卷 / 01期

基金：

美国国家科学基金会;

关键词：

Nanowire; TEM; grain boundary; impurity; tomography; crystal growth; DOPANT SEGREGATION; GRAIN-BOUNDARIES; SILICON; SUPERLATTICES; BORON;

D O I：

10.1021/nl203259f

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Scanning and transmission electron microscopy was used to correlate the structure of planar defects with the prevalence of Au catalyst atom incorporation in Si nanowires. Site-specific high-resolution imaging along orthogonal zone axes, enabled by advances in focused ion beam cross sectioning, reveals substantial incorporation of catalyst atoms at grain boundaries in < 110 > oriented nanowires. In contrast, (111) stacking faults that generate new polytypes in < 112 > oriented nanowires do not show preferential catalyst incorporation. Tomographic reconstruction of the catalyst-nanowire interface is used to suggest criteria for the stability of planar defects that trap impurity atoms in catalyst-mediated nanowires.

引用

页码：167 / 171

页数：5

共 32 条

[1] Twinning superlattices in indium phosphide nanowires [J].

Algra, Rienk E. ;

Verheijen, Marcel A. ;

Borgstrom, Magnus T. ;

Feiner, Lou-Fe ;

Immink, George ;

van Enckevort, Willem J. P. ;

Vlieg, Elias ;

Bakkers, Erik P. A. M. .

NATURE, 2008, 456 (7220) :369-372

[2] Crystal Structure Transfer in Core/Shell Nanowires [J].

Algra, Rienk E. ;

Hocevar, Moira ;

Verheijen, Marcel A. ;

Zardo, Ilaria ;

Immink, George G. W. ;

van Enckevort, Willem J. P. ;

Abstreiter, Gerhard ;

Kouwenhoven, Leo P. ;

Vlieg, Elias ;

Bakkers, Erik P. A. M. .

NANO LETTERS, 2011, 11 (04) :1690-1694

[3] High-resolution detection of Au catalyst atoms in Si nanowires [J].

Allen, Jonathan E. ;

Hemesath, Eric R. ;

Perea, Daniel E. ;

Lensch-Falk, Jessica L. ;

Li, Z. Y. ;

Yin, Feng ;

Gass, Mhairi H. ;

Wang, Peng ;

Bleloch, Andrew L. ;

Palmer, Richard E. ;

Lauhon, Lincoln J. .

NATURE NANOTECHNOLOGY, 2008, 3 (03) :168-173

[4] Nanoscale mapping of ion diffusion in a lithium-ion battery cathode [J].

Balke, N. ;

Jesse, S. ;

Morozovska, A. N. ;

Eliseev, E. ;

Chung, D. W. ;

Kim, Y. ;

Adamczyk, L. ;

Garcia, R. E. ;

Dudney, N. ;

Kalinin, S. V. .

NATURE NANOTECHNOLOGY, 2010, 5 (10) :749-754

[5] Grain boundary strengthening in alumina by rare earth impurities [J].

Buban, JP ;

Matsunaga, K ;

Chen, J ;

Shibata, N ;

Ching, WY ;

Yamamoto, T ;

Ikuhara, Y .

SCIENCE, 2006, 311 (5758) :212-215

[6] PROPERTIES OF GOLD IN SILICON [J].

BULLIS, WM .

SOLID-STATE ELECTRONICS, 1966, 9 (02) :143-&

[7] Engineering metal-impurity nanodefects for low-cost solar cells [J].

Buonassisi, T ;

Istratov, AA ;

Marcus, MA ;

Lai, B ;

Cai, ZH ;

Heald, SM ;

Weber, ER .

NATURE MATERIALS, 2005, 4 (09) :676-679

[8]

Caroff P, 2009, NAT NANOTECHNOL, V4, P50, DOI [10.1038/nnano.2008.359, 10.1038/NNANO.2008.359]

[9] Cyclic Supersaturation and Triple Phase Boundary Dynamics in Germanium Nanowire Growth [J].

Gamalski, A. D. ;

Ducati, C. ;

Hofmann, S. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2011, 115 (11) :4413-4417

[10]

GOLSOY B, UNPUB

← 1 2 3 4 →