Scanning tunneling microscopy determination of single nanocrystal core sizes via correlation with mass spectrometry

被引:8
作者
Bigioni, TP
Schaaff, TG
Wyrwas, RB
Harrell, LE
Whetten, RL
First, PN [1 ]
机构
[1] Georgia Inst Technol, Sch Chem, Atlanta, GA 30332 USA
[2] Georgia Inst Technol, Sch Phys, Atlanta, GA 30332 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
关键词
D O I
10.1021/jp0376931
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 show that single alkanethiol-passivated gold nanocrystals can be identified by core size in scanning tunneling microscopy (STM) experiments, through a comparison of the measured STM heights with a direct determination of the gold core sizes by mass spectrometry. We take advantage of the discrete size distribution to correlate the peaks in a histogram of nanocrystal heights with the distinct abundance peaks in a mass spectrum. The correlation establishes a mapping from STM height to core mass or mean core diameter. This is vitally important for the interpretation of size-dependent "single-molecule" tunneling spectra from nanocrystal compounds.
引用
收藏
页码:3772 / 3776
页数:5
相关论文
共 39 条
[1]   Room temperature Coulomb blockade and Coulomb staircase from self-assembled nanostructures [J].
Andres, RP ;
Datta, S ;
Dorogi, M ;
Gomez, J ;
Henderson, JI ;
Janes, DB ;
Kolagunta, VR ;
Kubiak, CP ;
Mahoney, W ;
Osifchin, RF ;
Reifenberger, R ;
Samanta, MP ;
Tian, W .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1996, 14 (03) :1178-1183
[2]   Identification of atomic-like electronic states in indium arsenide nanocrystal quantum dots [J].
Banin, U ;
Cao, YW ;
Katz, D ;
Millo, O .
NATURE, 1999, 400 (6744) :542-544
[3]   Imaging and tunneling spectroscopy of gold nanocrystals and nanocrystal arrays [J].
Bigioni, TP ;
Harrell, LE ;
Cullen, WG ;
Guthrie, DE ;
Whetten, RL ;
First, PN .
EUROPEAN PHYSICAL JOURNAL D, 1999, 6 (03) :355-364
[4]  
BIGIONI TP, IN PRESS
[5]  
BIGIONI TP, 2000, THESIS GEORGIA I TEC
[6]   SYNTHESIS OF THIOL-DERIVATIZED GOLD NANOPARTICLES IN A 2-PHASE LIQUID-LIQUID SYSTEM [J].
BRUST, M ;
WALKER, M ;
BETHELL, D ;
SCHIFFRIN, DJ ;
WHYMAN, R .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1994, (07) :801-802
[7]   The structure of para-xylene and meta-xylene adsorbed on Rh(111) studied by scanning tunneling microscopy [J].
Cernota, PD ;
Yoon, HA ;
Salmeron, M ;
Somorjai, GA .
SURFACE SCIENCE, 1998, 415 (03) :351-362
[8]   Gold nanoelectrodes of varied size: Transition to molecule-like charging [J].
Chen, SW ;
Ingram, RS ;
Hostetler, MJ ;
Pietron, JJ ;
Murray, RW ;
Schaaff, TG ;
Khoury, JT ;
Alvarez, MM ;
Whetten, RL .
SCIENCE, 1998, 280 (5372) :2098-2101
[9]   Structural evolution of larger gold clusters [J].
Cleveland, CL ;
Landman, U ;
Shafigullin, MN ;
Stephens, PW ;
Whetten, RL .
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1997, 40 (1-4) :503-508
[10]   Structural evolution of smaller gold nanocrystals: The truncated decahedral motif [J].
Cleveland, CL ;
Landman, U ;
Schaaff, TG ;
Shafigullin, MN ;
Stephens, PW ;
Whetten, RL .
PHYSICAL REVIEW LETTERS, 1997, 79 (10) :1873-1876