1887
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
f
Orientation of organic molecules in a monolayer vis-à-vis their molecular orbitals and transport gap
Rent:
Rent this article for
Access full text Article
/content/aip/journal/apl/99/5/10.1063/1.3623441
1.
1. K. Ariga, Y. Lvov, and T. Kunitake, J. Am. Chem. Soc. 119, 2224 (1997).
http://dx.doi.org/10.1021/ja963442c
2.
2. S. L. Clark, E. S. Handy, M. F. Rubner et al., Adv. Mater. 11, 1031 (1999).
http://dx.doi.org/10.1002/(SICI)1521-4095(199908)11:12<>1.0.CO;2-W
3.
3. S. Das and A. J. Pal, Langmuir 18, 458 (2002).
http://dx.doi.org/10.1021/la011043b
4.
4. W. J. Doherty, R. Friedlein, and W. R. Salaneck, J. Phys. Chem. C 111, 2724 (2007).
http://dx.doi.org/10.1021/jp0671289
5.
5. A. W. Snow and N. L. Jarvis, J. Am. Chem. Soc. 106, 4706 (1984).
http://dx.doi.org/10.1021/ja00329a012
6.
6. I. Muzikante, L. Gerca, E. Fonavs et al., Mater. Sci. Eng. C 22, 339 (2002).
http://dx.doi.org/10.1016/S0928-4931(02)00220-5
7.
7. S. K. Majee, A. Bandyopadhyay, and A. J. Pal, Chem. Phys. Lett. 399, 284 (2004).
http://dx.doi.org/10.1016/j.cplett.2004.10.033
8.
8. S. Dey and A. J. Pal, Langmuir 26, 17139 (2010).
http://dx.doi.org/10.1021/la102996t
9.
9. M. Eckle and G. Decher, Nano Lett. 1, 45 (2001).
http://dx.doi.org/10.1021/nl005514a
10.
10. C. Pearson, J. Nagel, and M. C. Petty, J. Phys. D: Appl. Phys. 34, 285 (2001).
http://dx.doi.org/10.1088/0022-3727/34/3/306
11.
11. J. Locklin, K. Shinbo, K. Onishi et al., Chem. Mater. 15, 1404 (2003).
http://dx.doi.org/10.1021/cm021073f
12.
12. M. Ogawa, N. Kudo, H. Ohkita et al., Appl. Phys. Lett. 90, 223107 (2007).
http://dx.doi.org/10.1063/1.2744484
13.
13. J. T. Stricker, A. D. Gudmundsdottir, A. P. Smith et al., J. Phys. Chem. B 111, 6322 (2007).
http://dx.doi.org/10.1021/jp0688862
14.
14. J. A. He, L. Samuelson, L. Li et al., Langmuir 14, 1674 (1998).
http://dx.doi.org/10.1021/la971336y
15.
15. E. H. Kang, T. J. Bu, P. C. Jin et al., Langmuir 23, 7594 (2007).
http://dx.doi.org/10.1021/la700749s
16.
16. M. Y. Gao, J. Q. Sun, E. Dulkeith et al., Langmuir 18, 4098 (2002).
http://dx.doi.org/10.1021/la015599a
17.
17. Y. Wang, X. J. Wang, Y. Guo et al., Langmuir 20, 8952 (2004).
http://dx.doi.org/10.1021/la047871x
18.
18. V. Kolotovska, M. Friedrich, D. R. T. Zahn et al., J. Cryst. Growth 291, 166 (2006).
http://dx.doi.org/10.1016/j.jcrysgro.2006.02.016
19.
19. H. S. Silva and P. B. Miranda, J. Phys. Chem. B 113, 10068 (2009).
http://dx.doi.org/10.1021/jp904196h
20.
20. T. Xiong and D. G. Ma, J. Appl. Phys. 104, 064506 (2008).
http://dx.doi.org/10.1063/1.2973466
21.
21. T. Mori, S. Nishino, T. Nishikawa et al., Jpn. J. Appl. Phys. 47, 455 (2008).
http://dx.doi.org/10.1143/JJAP.47.455
22.
22. S. K. Hau, H. L. Yip, K. S. Chen et al., Appl. Phys. Lett. 97, 253307 (2010).
http://dx.doi.org/10.1063/1.3530431
23.
23. G. Winroth, O. Fenwick, M. A. Scott et al., Appl. Phys. Lett. 97, 043304 (2010).
http://dx.doi.org/10.1063/1.3459964
24.
24. P. G. Schroeder, C. B. France, J. B. Park et al., J. Appl. Phys. 91, 3010 (2002).
http://dx.doi.org/10.1063/1.1445286
25.
25. N. Koch, A. Kahn, J. Ghijsen et al., Appl. Phys. Lett. 82, 70 (2003).
http://dx.doi.org/10.1063/1.1532102
26.
journal-id:
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/5/10.1063/1.3623441
Loading
View: Figures

Figures

Image of FIG. 1.

Click to view

FIG. 1.

(Color online) (a) Polarized optical absorption spectra of a monolayer of NiPc with molecules (a) parallel and (b) perpendicular to the substrate and facing one particular direction. Each of the figures show spectrum with plane of polarization parallel and perpendicular to the molecular plane. Schematic representations of the molecules in a monolayer are shown in the respective figures. (c) Dichroic ratio versus wavelength plot, as derived from (b), for the monolayer with molecules parallel to the substrate.

Image of FIG. 2.

Click to view

FIG. 2.

(Color online) Magnetic force microscopy images (amplitude-lift mode scan) of a monolayer of NiPc (a) with molecules parallel to the substrate and (b) with molecules perpendicular to the substrate. Area of each MFM images was 4 μm × 4 μm.

Image of FIG. 3.

Click to view

FIG. 3.

(Color online) Current-voltage characteristics of a monolayer of NiPc having two different orientations in (a) linear-linear and (b) log-linear scales. A typical STM topography (200 nm × 200 nm) of a monolayer with molecules perpendicular to the substrate is shown in the inset of (a). Determination of transport gap for one system is shown in (b).

Image of FIG. 4.

Click to view

FIG. 4.

(Color online) (a) LUMO and HOMO levels with respect to the work-function of Pt/Ir tip of STM and (b) transport gap of NiPc in a monolayer as a function of tip approaching current when molecules are parallel or perpendicular to the substrate. The series of experiments were carried out for at least five times. Root mean square deviation of the data, which are discrete random variables, have been included in the figures as error bars.

Loading

Article metrics loading...

/content/aip/journal/apl/99/5/10.1063/1.3623441
2011-08-05
2014-04-20

Abstract

We form a monolayer of magnetic organic molecules with its plane parallel or perpendicular to the substrate. The molecules in a monolayer are oriented with an external magnetic field followed by immobilization though an electrostatic binding. In this work, from scanning tunneling microscopy(STM) measurements, we show that conductivity, molecular orbitals, and transport gap of the molecules in a monolayer depend on its orientation. From measurements carried out with different tip-to-molecule distances, we observe that the STM tip also influences molecular orbitals and transport-gap of molecules.

Loading

Full text loading...

/deliver/fulltext/aip/journal/apl/99/5/1.3623441.html;jsessionid=5bo5k8lpi83ik.x-aip-live-06?itemId=/content/aip/journal/apl/99/5/10.1063/1.3623441&mimeType=html&fmt=ahah&containerItemId=content/aip/journal/apl
true
true
This is a required field
Please enter a valid email address
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Orientation of organic molecules in a monolayer vis-à-vis their molecular orbitals and transport gap
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/5/10.1063/1.3623441
10.1063/1.3623441
SEARCH_EXPAND_ITEM