Metal-molecule schottky junction effects in surface enhanced raman scattering

Journal of Physical Chemistry A

Volumn 115, Issue 3, 2011, Pages 318-328

  Gartia, Manas Ranjan ^a,b   Bond, Tiziana C ^a   Liu, Gang Logan ^b  

^a United States of America   (United States)

^b LAWRENCE LIVERMORE NATIONAL LABORATORY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

IN-FIELD; LOCAL ELECTRIC FIELD; RAMAN PEAK SHIFTS; RAMAN SPECTRA; SCHOTTKY BARRIERS; SCHOTTKY JUNCTIONS; SPECIFIC ORIENTATION; STRONG ENHANCEMENT; SURFACE-ENHANCED RAMAN SCATTERING;

ELECTRIC FIELDS; MOLECULES; RAMAN SPECTROSCOPY; SCHOTTKY BARRIER DIODES;

RAMAN SCATTERING;

METAL;

ARTICLE; CHEMISTRY; METHODOLOGY; RAMAN SPECTROMETRY; SURFACE PROPERTY;

METALS; SPECTRUM ANALYSIS, RAMAN; SURFACE PROPERTIES;

EID: 79251529193     PISSN: 10895639     EISSN: 15205215     Source Type: Journal    
DOI: 10.1021/jp1065083     Document Type: Article

References (109)

1. Fleischmann, M.; Hendra, P. J.; McQuillan, A. J. Raman Spectra of Pyridine Adsorbed at a Silver Electrode Chem. Phys. Lett. 1974, 26, 163-166
2. Jeanmaire, D. L.; Van Duyne, R. P. Surface Raman Spectroelectrochemistry: Part I. Heterocyclic, Aromatic, and Aliphatic Amines Adsorbed on the Anodized Silver Electrode J. Electroanal. Chem. 1977, 84, 1-20
3. Albrecht, M. G.; Creighton, J. A. Anomalously Intense Raman Spectra of Pyridine at a Silver Electrode J. Am. Chem. Soc. 1977, 99, 5217
4. Cotton, T. M.; Schultz, S. G.; Van Duyne, R. P. Surface-Enhanced Resonance Raman Scattering from Cytochrome c and Myoglobin Adsorbed on a Silver Electrode J. Am. Chem. Soc. 1980, 102, 7962
5. Nie, S.; Emory, S. R. Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering Science 1997, 275, 1102-1106 (Pubitemid 27097304)
6. Kneipp, K.; Wang, Y.; Kneipp, H.; Perelman, L. T.; Itzkan, I.; Dasari, R. R.; Feld, M. S. Single Molecule Detection using Surface-Enhanced Raman Scattering (SERS) Phys. Rev. Lett. 1997, 78
7. Lyandres, O.; Shah, N. C.; Yonzon, C. R.; Walsh, J. T.; Glucksberg, M. R.; Van Duyne, R. P. Real-Time Glucose Sensing by Surface-Enhanced Raman Spectroscopy in Bovine Plasma Facilitated by a Mixed Decanethiol/Mercaptohexanol Partition Layer Anal. Chem. 2005, 77, 6139
8. Lyandres, O.; Yuen, J. M.; Shah, N. C.; Van Duyne, R. P.; Walsh, J. J. T.; Glucksberg, M. R. Progress Toward an in Vivo Surface-Enhanced Raman Spectroscopy Glucose Sensor Diabetes technology therapeutics 2008, 10, 257
9. Yonzon, C.; Lyandres, O.; Shah, N.; Dieringer, J.; Van Duyne, R Glucose Sensing with Surface-Enhanced Raman Spectroscopy. In Surface-Enhanced Raman Scattering-Physics and Applications, Topics in Appl. Phys.; Kneipp, K., Moskovits, M., Kneipp, H., Eds.; Springer-Verlag: Berlin Heidelberg, 2006, 103, pp 367-379. (Pubitemid 44406330)
10. Zamarion, V. M.; Timm, R. A.; Araki, K.; Toma, H. E. Ultrasensitive SERS Nanoprobes for Hazardous Metal Ions Based on Trimercaptotriazine-Modified Gold Nanoparticles Inorg. Chem. 2008, 47, 2934
11. Zhang, X.; Shah, N. C.; Van Duyne, R. P. Sensitive and Selective chem/bio Sensing Based on Surface-Enhanced Raman Spectroscopy (SERS) Vibr. Spectrosc. 2006, 42, 2-8
12. Qian, X.; Peng, X.; Ansari, D. O.; Yin-Goen, Q.; Chen, G. Z.; Shin, D. M.; Yang, L.; Young, A. N.; Wang, M. D.; Nie, S. In Vivo Tumor Targeting and Spectroscopic Detection with Surface-Enhanced Raman Nanoparticle Tags Nat. Biotechnol. 2008, 26, 90
13. Fujita, K.; Ishitobi, S.; Hamada, K.; Smith, N. I. Time-Resolved Observation of Surface-Enhanced Raman Scattering from Gold Nanoparticles during Transport through a Living Cell J. Biomed. Opt. 2009, 14 024038
14. Lombardi, J. R.; Birke, R. L. A Unified View of Surface-Enhanced Raman Scattering Acc. Chem. Res. 2009, 42, 742
15. Moskovits, M. Surface Roughness and the Enhanced Intensity of Raman Scattering by Molecules Adsorbed on Metals J. Chem. Phys. 1978, 69, 4159
16. Lombardi, J. R.; Birke, R. L.; Lu, T.; Xu, J. Charge-Transfer Theory of Surface Enhanced Raman Spectroscopy: Herzberg-Teller Contributions J. Chem. Phys. 1986, 84, 4174
17. Lombardi, J. R.; Birke, R. L. A Unified Approach to Surface-Enhanced Raman Scattering J. Phys. Chem. C 2008, 112, 5617
18. Campion, A.; Kambhampati, P. Surface-Enahnced Raman Scattering Chem. Soc. Rev. 1998, 27, 241
19. Kneipp, K.; Kneipp, H.; Itzkan, I.; Dasari, R. R.; Feld, M. S. Surface-Enhanced Raman Scattering and Biophysics J. Phys. Condensed Matter 2002, 14, R597
20. Furtak, T. E.; Macomber, S. H. Voltage-Induced Shifting of Charge-Transfer Excitations and their Role in Surface-Enhanced Raman Scattering Chem. Phys. Lett. 1983, 95, 328-332
21. Pockrand, I.; Otto, A. Surface Enhanced and Disorder Induced Raman Scattering from Silver Films Solid State Commun. 1981, 37, 109-112 (Pubitemid 11480380)
22. Lombardi, J. R.; Birke, R. L.; Sanchez, L. A.; Bernard, I.; Sun, S. C. The Effect of Molecular Structure on Voltage Induced Shifts of Charge Transfer Excitation in Surface Enhanced Raman Scattering Chem. Phys. Lett. 1984, 104, 240-247
23. Burstein, E.; Chen, Y. J.; Chen, C. Y.; Lundquist, S.; Tosatti, E. Giant" Raman Scattering by Adsorbed Molecules on Metal Surfaces Solid State Commun. 1979, 29, 567-570 (Pubitemid 9463828)
24. Persson, B. N. J. On the Theory of Surface-Enhanced Raman Scattering Chem. Phys. Lett. 1981, 82, 561-565
25. Gersten, J. I.; Birke, R. L.; Lombardi, J. R. Theory of Enhanced Light Scattering from Molecules Adsorbed at the Metal-Solution Interface Phys. Rev. Lett. 1979, 43, 147-150
26. Moskovits, M. Surface-Enhanced Spectroscopy Rev. Mod. Phys. 1985, 57, 783
27. Otto, A.; Mrozek, I.; Grabhorn, H.; Akemann, W. Surface-Enhanced Raman Scattering J. Phys.: Condensed Matter 1992, 4, 1143
28. Jin, R. Nanoparticle Clusters Light Up in SERS Angew. Chem. (Int. Ed. Engl.) 2010, 49, 2826-2829
29. Sun, M.; Li, Z.; Liu, Y.; Xu, H. Direct Visual Evidence for Chemical Mechanisms of SERRS Via Charge Transfer in Au20-Pyrazine-Au20 Junction J. Raman Spectrosc. 2009, 40, 1942
30. Xu, H. X.; Bjerneld, E. J.; Käll, M.; Börjesson, L. Spectroscopy of Single Hemoglobin Molecules by Surface Enhanced Raman Scattering Phys. Rev. Lett. 1999, 83
31. General Discussion. Faraday Discuss. 2006, 132, 227 - 247.
32. Lazorenko-Manevich, R. M. Adatom Hypothesis as a Predominant Mechanism of Surface Enhanced Raman Scattering: A Review of Experimental Argumentation Russ. J. Electrochem. 2005, 41, 799
33. Otto, A.; Timper, J.; Billmann, J.; Kovacs, G.; Pockrand, I. Surface Roughness Induced Electronic Raman Scattering Surf. Sci. 1980, 92, L55
34. Morton, S. M.; Jensen, L. Understanding the Molecule-Surface Chemical Coupling in SERS J. Am. Chem. Soc. 2009, 131, 4098
35. Udagawa, M.; Chou, C.; Hemminger, J. C.; Ushioda, S. Raman Scattering Cross Section of Adsorbed Pyridine Molecules on a Smooth Silver Surface Phys. Rev. B 1981, 23
36. Jiang, X.; Campion, A. Chemical Effects in Surface-Enhanced Raman Scattering: Pyridine Chemisorbed on Silver Adatoms on Rh (100) Chem. Phys. Lett. 1987, 140, 95-100
37. 20 Nanoclusters J. Am. Chem. Soc. 2006, 6, 1234
38. Nikoobakht, B.; Wang, J.; El-Sayed, M. A. Surface-Enhanced Raman Scattering of Molecules Adsorbed on Gold Nanorods: Off-Surface Plasmon Resonance Condition Chem. Phys. Lett. 2002, 366, 17-23
39. Fromm, D. P.; Sundaramurthy, A.; Kinkhabwala, A.; Schuck, P. J.; Kino, G. S.; Moerne, W. E. Exploring the Chemical Enhancement for Surface-Enhanced Raman Scattering with Au Bowtie Nanoantennas J. Chem. Phys. 2006, 124 061101
40. Peyser-Capadona, L.; Zheng, J.; Gonzalez, J. I.; Lee, T. H.; Patel, S. A.; Dickson, R. M. Nanoparticle-Free Single Molecule Anti-Stokes Raman Spectroscopy Phys. Rev. Lett. 2005, 94 058301
41. Zheng, J.; Ding, Y.; Tian, B.; Wang, Z. L.; Zhuang, X. Luminescent and Raman Active Silver Nanoparticles with Polycrystalline Structure J. Am. Chem. Soc. 2008, 130, 10473
42. 2 Nanoparticles: Charge-Transfer Contribution J. Phys. Chem. C 2008, 112, 20098
43. Jensen, L.; Aikens, C. M.; Schatz, G. C. Electronic Structure Methods for Studying Surface-Enhanced Raman Scattering Chem. Soc. Rev. 2008, 37, 1061
44. Saikin, S. K.; Olivares-Amaya, R.; Rappoport, D.; Stopa, M.; Aspuru-Guzik, A. On the Chemical Bonding Effects in the Raman Response: Benzenethiol Adsorbed on Silver Clusters Phys. Chem. Chem. Phys. 2009, 11, 9401
45. Otto, A. The Chemical (Electronic) Contribution to Surface-Enhanced Raman Scattering J. Raman Spectrosc. 2005, 36, 497
46. Aroca, R. F.; Clavijo, R. E.; Halls, M. D.; Schlegel, H. B. Surface-Enhanced Raman Spectra of Phthalimide. Interpretation of the SERS Spectra of the Surface Complex Formed on Silver Islands and Colloids J. Phys. Chem. A 2000, 104, 9505
47. Jensen, L.; Zhao, L. L.; Autschbach, J.; Schatz, G. C. Theory and Method for Calculating Resonance Raman Scattering from Resonance Polarizability Derivatives J. Chem. Phys. 2005, 123, 174110
48. n (n = 2-8, 20) Clusters J. Phys. Chem. C 2007, 111, 4756
49. Nara, J.; Higai, S.; Morikawa, Y.; Ohno, T. Density Functional Theory Investigation of Benzenethiol Adsorption on Au (111) J. Chem. Phys. 2004, 120, 6705
50. Wan, L.; Terashima, M.; Noda, H.; Osawa, M. Molecular Orientation and Ordered Structure of Benzenethiol Adsorbed on Gold (111) J. Phys. Chem. B 2000, 104, 3569
51. Vivoni, A.; Birke, R. L.; Foucault, R.; Lombardi, J. R. Ab Initio Frequency Calculations of Pyridine Adsorbed on an Adatom Model of a SERS Active Site of a Silver Surface J. Phys. Chem. B 2003, 107, 5557
52. Wu, D. Y.; Duan, S.; Ren, B.; Tian, Z. Q. Density Functional Theory Study of Surface-Enhanced Raman Scattering Spectra of Pyridine Adsorbed on Noble and Transition Metal Surfaces J. Raman Spectrosc. 2005, 36, 533
53. Cardini, G.; Miranda, M. M. Density Functional Study on the Adsorption of Pyrazole Onto Silver Colloidal Particles J. Phys. Chem. B 2002, 106, 6875
54. Wu, D. Y.; Ren, B.; Jiang, Y. X.; Xu, X.; Tian, Z. Q. Density Functional Study and Normal-Mode Analysis of the Bindings and Vibrational Frequency Shifts of the Pyridine-M (M) Cu, Ag, Au, Cu+, Ag+, Au+, and Pt) Complexes J. Phys. Chem. A 2002, 106, 9042
55. Cardini, G.; Muniz-Miranda, M.; Pagliai, M.; Schettino, V. A Density Functional Study of the SERS Spectra of Pyridine Adsorbed on Silver Clusters Theor. Chem. Acc. 2007, 117, 458
56. Johansson, P. Illustrative Direct Ab Initio Calculations of Surface Raman Spectra Phys. Chem. Chem. Phys. 2005, 7, 475
57. Wu, D. Y.; Hayashi, M.; Lin, S. H.; Tian, Z. Q. Theoretical Differential Raman Scattering Cross-Sections of Totally-Symmetric Vibrational Modes of Free Pyridine and pyridine-metal Cluster Complexes Spectrochim. Acta Part A: Mol. Biomol. Spectrosc. 2004, 60, 137-146
58. Lambert, D. K. Vibrational Stark Effect of Adsorbates at Electrochemical Interfaces Electrochim. Acta 1996, 41, 623-630
59. Lambert, D. K. Electric Field Induced Change of Adsorbate Vibrational Line Strength J. Chem. Phys. 1991, 94, 6237
60. Nart, F. C.; Iwasita, T. Static Field Effect on the Band Intensity of Adsorbed Sulfate Ions Electrochim. Acta 1996, 41, 631-636
61. Pomfret, M. B.; Pietron, J. J.; Owrutsky, J. C. Measurement of Benzenethiol Adsorption to Nanostructured Pt, Pd, and PtPd Films using Raman Spectroelectrochemistry Langmuir 2010, 26, 6809
62. Gomez, R.; Perez, J. M.; Gullon, J. S.; Montiel, V.; Aldaz, A. In Situ Surface Enhanced Raman Spectroscopy on Electrodes with Platinum and Palladium Nanoparticle Ensembles J. Phys. Chem. B 2004, 108, 9943
63. Sawai, Y.; Takimoto, B.; Nabika, H.; Ajito, K.; Murakoshi, K. Control of Near-Infrared Optical Response of Metal Nano-Structured Film on Glass Substrate for Intense Raman Scattering Faraday Discuss. 2006, 132, 179
64. Kilitziraki, M.; Moore, A. J.; Petty, M. C.; Bryce, M. R. Evaporated Thin Films of Tetrathiafulvalene Derivatives and their Charge-Transfer Complexes Thin Solid Films 1998, 335, 209-213
65. Geiser, U. Toward crystal design in organic conductors and superconductors; 1999, Proceedings of the 28th International School of Crystallography, Erice, Italy, May 1999.
66. Horowitz, G. Organic Field-Effect Transistors Adv. Mater. 1998, 10, 365
67. Kymissis, I. Organic Field Effect Transistors, Theory, Fabrication and Characterization; Springer: Berlin, 2009; Chapter 2.
68. Yamashita, Y. Organic Semiconductors for Organic Field-Effect Transistors Sci. Technol. Adv. Mater. 2009, 10 024313
69. Schottky, W. Phs. Z 1940, 41, 570
70. Bardeen, J. Surface States and Rectification at a Metal Semi-Conductor Contact Phys. Rev. 1947, 71, 717
71. Heimel, G.; Romaner, L.; Zojer, E.; Bredas, J. The Interface Energetics of Self-Assembled Monolayers on Metals Acc. Chem. Res. 2008, 41, 729
72. Heimel, G.; Romaner, L.; Brádas, J.; Zojer, E. Organic/metal Interfaces in Self-Assembled Monolayers of Conjugated Thiols: A First-Principles Benchmark Study Surf. Sci. 2006, 600, 4548-4562
73. Heimel, G.; Romaner, L.; Bredas, J.; Zojer, E. Interface Energetics and Level Alignment at Covalent Metal-Molecule Junctions: ?-Conjugated Thiols on Gold Phys. Rev. Lett. 2006, 96, 196806
74. Ishii, H.; Sugiyama, K.; Ito, E.; Seki, K. Energy Level Alignment and Interfacial Electronic Structures at organic/metal and organic/organic Interfaces Adv. Mater. 1999, 11, 605
75. Campbell, I. H.; Davids, P. S.; Smith, D. L.; Barashkov, N. N.; Ferraris, J. P. The Schottky Energy Barrier Dependence of Charge Injection in Organic Light-Emitting Diodes Appl. Phys. Lett. 1998, 72, 1863
76. Betti, M. G.; Kanjilal, A.; Mariani, C.; Vazquez, H.; Dappe, Y. J.; Ortega, J.; Flores, F. Barrier Formation at Organic Interfaces in a Cu (100)-Benzenethiolate-Pentacene Heterostructure Phys. Rev. Lett. 2008, 100 027601
77. de Boer, B.; Hadipour, A.; Mandoc, M. M.; van Woudenbergh, T.; Blom, P. W. M. Tuning of Metal Work Functions with Self-Assembled Monolayers Adv. Mater. 2005, 17, 621
78. Chen, J.; Reed, M. A.; Rawlett, A. M.; Tour, J. M. Large on-Off Ratios and Negative Differential Science 1999, 286, 1550
79. Whelan, C. M.; Smyth, M. R.; Barnes, C. J. HREELS, XPS, and Electrochemical Study of Benzenethiol Adsorption on Au(111) Langmuir 1999, 15, 126
80. Pauling, L. The Nature of the Chemical Bond. Application of Results obtained from the Quantum Mechanics and from a Theory of Paramagnetic Susceptibility to the Structure of Molecules J. Am. Chem. Soc. 1931, 53, 1367
81. Also in: Pauling, L. The nature of the Chemical Bond, 3rd ed.; Cornell University Press: New York, 1960.
82. Valiskó, M.; Boda, D. Relative Permittivity of Polar Liquids. Comparison of Theory, Experiment, and Simulation J. Phys. Chem. B 2005, 109, 6355
83. Peisert, H.; Knupfer, M.; Fink, J. Energy Level Alignment at organic/metal Interfaces: Dipole and Ionization Potential Appl. Phys. Lett. 2002, 81, 2400
84. Nam, P. C.; Nguyen, M. T.; Chandra, A. K. Theoretical Study of the Substituent Effects on the S-H Bond Dissociation Energy and Ionization Energy of 3-Pyridinethiol: Prediction of Novel Antioxidant J. Phys. Chem. A 2006, 110, 10911
85. Ionization potential of Benzenethiol. http://www.bis.fm/assets/documents/ faxdatasheets/Ion%20Science%20PhoCheck+2000%2010.6eV%20Gas%20Detection%20Table. pdf (accessed 07/09, 2010).
86. Sze, S. M. In Physics of Semiconductor Devices, 2nd ed.; John Wiley Sons, Inc.: Hoboken, NJ, 2007.
87. Yokota, K.; Taniguchi, M.; Kawai, T. Metal-Molecule Interfaces Formed by Noble-Metal-Chalcogen Bonds for Nanoscale Molecular Devices J. Phys. Chem. C 2010, 114, 4050
88. Braun, S.; Salaneck, W. R.; Fahlman, M. Energy-Level Alignment at organic/metal and organic/organic Interfaces Adv. Mater. 2009, 21, 1450
89. Tian, W.; Datta, S.; Hong, S.; Reifenberger, R.; Henderson, J. I.; Kubiak, C. P. Conductance Spectra of Molecular Wires J. Chem. Phys. 1998, 109, 2874
90. ADF: Amsterdam Density Functional software. http://www.scm.com.
91. Velde, Te. G.; Bickelhaupt, F. M.; Baerends, E. J.; Guerra, C. F.; Van Gisbergen, S. J. A.; Snijders, J. G.; Ziegler, T. Chemistry with ADF J. Comput. Chem. 2001, 22, 931
92. Becke, A. D. Density-Functional Exchange-Energy Approximation with Correct Asymptotic Behavior Phys. Rev. A, At., Mol., Opt. Phys. 1988, 38, 3098
93. Perdew, J. P. Density-Functional Approximation for the Correlation Energy of the Inhomogeneous Electron Gas Phys. Rev. B 1986, 33
94. Gartia, M. R.; Xu, Z.; Behymer, E.; Nguyen, H.; Britten, J. A.; Larson, C.; Miles, R.; Bora, M.; Chang, A. S. P.; Bond, T. C.; Liu, G. L. Rigorous Surface Enhanced Raman Spectral Characterization of Large-Area Ultrahigh-Uniformity Silver-Coated Tapered Silica Nanopillar Arrays Nanotechnology 2010, 21, 395701
95. Etchegoin, P. G.; Galloway, C.; Le Ru, E. C. Polarization-Dependent Effects in Surface-Enhanced Raman Scattering (SERS) Phys. Chem. Chem. Phys. 2006, 8, 2624
96. Arenas, J. F.; Woolley, M. S.; Otero, J. C.; Marcos, J. I. Charge Transfer Processes in Surface-Enhanced Raman Scattering. Franck-Condon Active Vibrations of Pyridine J. Phys. Chem. 1996, 100, 3206
97. Garraway, B.; Stenholm, S.; Suominen, K. A. Adventures in Wave Packet Land Phys. World 1993, 46
98. van Gisbergen, S. J. A.; Snijders, J. G.; Baerends, E. J. Application of Time-Dependent Density Functional Response Theory to Raman Scattering Chem. Phys. Lett. 1996, 259, 599-604
99. Letardi, S.; Cleri, F. Interaction of Benzene Thiol and Thiolate with Small Gold Clusters J. Chem. Phys. 2004, 120, 10062
100. Lang, N. D.; Kohn, W. Theory of Metal Surfaces: Work Function Phys. Rev. B 1971, 3
101. Witte, G.; Lukas, S.; Bagus, P. S.; Woll, C. Vacuum Level Alignment at organic/metal Junctions: "Cushion" Effect and the Interface Dipole Appl. Phys. Lett. 2005, 87, 263502
102. Crispin, X.; Geskin, V.; Crispin, A.; Cornil, J.; Lazzaroni, R.; Salaneck, W. R.; Bredas, J. L. Characterization of the Interface Dipole at Organic/Metal Interfaces J. Am. Chem. Soc. 2002, 124, 8141
103. Allara, D. L.; Nuzzo, R. G. Spontaneously Organized Molecular Assemblies. 2. Quantitative Infrared Spectroscopic Determination of Equilibrium Structures of Solution-Adsorbed n -Alkanoic Acids on an Oxidized Aluminum Surface Langmuir 1985, 1, 66
104. Moskovits, M.; DiLella, D. P.; Maynard, K. J. Surface Raman Spectroscopy of a Number of Cyclic and Molecular Reorientation Aromatic Molecules Adsorbed on Silver: Selection Rules and Molecular Reorientation Langmuir 1988, 4, 76
105. Joo, T. H.; Kim, M. S.; Kim, K. Surface-Enhanced Raman Scattering of Benzenethiol in Silver Sol J. Raman Spectrosc. 1987, 18, 57
106. Biggs, K. B.; Camden, J. P.; Anker, J. N.; Van Duyne, R. P. Surface-Enhanced Raman Spectroscopy of Benzenethiol Adsorbed from the Gas Phase Onto Silver Film Over Nanosphere Surfaces: Determination of the Sticking Probability and Detection Limit Time J. Phys. Chem. A 2009, 113, 4581
107. Carron, K. T.; Hurley, L. G. Axial and Azimuthal Angle Determination with Surface-Enhanced Raman Spectroscopy: Thiophenol on Copper, Silver, and Gold Metal Surfaces J. Phys. Chem. 1991, 95, 9979
108. -1 Band of Benzenethiol and the Surface-Enhanced Raman Scattering Cross Section Enhancement Factor for Femtosecond Laser-Nanostructured Substrates J. Raman Spectrosc. 2009, 40, 1331
109. Cohen, A. J.; Sánchez, P. M.; Yang, W. Insights into Current Limitations of Density Functional Theory Science 2008, 321, 792