INTERPRETATION OF SCANNING TUNNELING AND ATOMIC-FORCE MICROSCOPY IMAGES OF TCNQ SALTS

被引:10
作者
MAGONOV, SN [1 ]
BAR, G [1 ]
CANTOW, HJ [1 ]
REN, J [1 ]
WHANGBO, MH [1 ]
机构
[1] N CAROLINA STATE UNIV,DEPT CHEM,RALEIGH,NC 27695
关键词
D O I
10.1016/0379-6779(94)90307-7
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The surfaces of the TCNQ salts TFF-TCNQ, Qn(TCNQ)2, 4EP(TCNQ)2 and TEA(TCNQ)2 (TCNQ = tetracyanoquinodimethane, TTF = tetrathiafulvalene, Qn = quinolinium, 4EP = 4-ethyl-N-methylpyridinium, TEA = tri-ethylammonium) were examined by scanning tunneling microscopy (STM) and atomic force microscopy (AFM). The STM and AFM images of these salts were interpreted on the basis of the rho(r0, e(f)) and rho(r0) plots of their molecular layers calculated with the extended Huckel tight-binding electronic structure method. The present work shows that a close interplay between experiment and theory is necessary for the rational surface analysis with STM and AFM.
引用
收藏
页码:159 / 167
页数:9
相关论文
共 27 条
[1]   ATOMIC-SCALE IMAGING OF ANISOTROPIC ORGANIC CONDUCTORS BY SCANNING PROBE TECHNIQUES (STM/AFM) [J].
BAR, G ;
MAGONOV, SN ;
CANTOW, HJ ;
GMEINER, J ;
SCHWOERER, M .
ULTRAMICROSCOPY, 1992, 42 :644-652
[2]  
BAR G, 1993, NEW J CHEM, V17, P439
[3]   CHARGE-DENSITY WAVES OF 1T-TAS2 IMAGED BY ATOMIC FORCE MICROSCOPY [J].
BARRETT, RC ;
NOGAMI, J ;
QUATE, CF .
APPLIED PHYSICS LETTERS, 1990, 57 (10) :992-994
[4]  
BEHM J, 1990, SCANNING TUNNELING M
[5]   ATOMIC FORCE MICROSCOPE [J].
BINNIG, G ;
QUATE, CF ;
GERBER, C .
PHYSICAL REVIEW LETTERS, 1986, 56 (09) :930-933
[6]   SURFACE STUDIES BY SCANNING TUNNELING MICROSCOPY [J].
BINNING, G ;
ROHRER, H ;
GERBER, C ;
WEIBEL, E .
PHYSICAL REVIEW LETTERS, 1982, 49 (01) :57-61
[7]   ORDER AND LOW DIMENSIONALITY IN THE ORGANIC SUPERCONDUCTOR (BEDT-TTF)2CU(NCS)2 REVEALED BY STM [J].
FAINCHTEIN, R ;
DARCANGELIS, ST ;
YANG, SS ;
COWAN, DO .
SCIENCE, 1992, 256 (5059) :1012-1014
[8]  
FAINCHTEIN R, 1990, ORGANIC SUPERCONDUCTIVITY, P147
[9]   SOME COMPUTER DRAWINGS OF MOLECULAR AND SOLID-STATE STRUCTURES [J].
KELLER, E .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1989, 22 :19-&
[10]   ATOMIC SCALE SURFACE STUDIES OF CONDUCTIVE ORGANIC-COMPOUNDS .1. SCANNING TUNNELING MICROSCOPY OF TETRATHIOFULVALENE-7,7',8,8'-TETRACYANOQUINODIMETHANE (TTF-TCNQ) AND TRIETHYLAMMONIUM-TCNQ2 (TEA-TCNQ2) [J].
MAGONOV, SN ;
SCHUCHHARDT, J ;
KEMPF, S ;
KELLER, E ;
CANTOW, HJ .
SYNTHETIC METALS, 1991, 40 (01) :59-72