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Volumn 129, Issue 18, 2008, Pages

Investigation of charge transport in mercaptosuccinic acid-passivated gold clusters

Author keywords

[No Author keywords available]

Indexed keywords

ACIDS; ELECTRIC CHARGE; ELECTRON ENERGY LOSS SPECTROSCOPY; GOLD; LATTICE VIBRATIONS; PHONONS; SEMICONDUCTOR MATERIALS; THICK FILMS;

EID: 56349110438     PISSN: 00219606     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.3010887     Document Type: Article
Times cited : (6)

References (37)
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    • Wang, S.1    Sato, S.2    Kimura, K.3
  • 28
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    • See EPAPS Document No. E-JCPSA6-129-034842 for characterization of the MPCs and Abeles activation plot. For more information on EPAPS, see.
    • See EPAPS Document No. E-JCPSA6-129-034842 for characterization of the MPCs and Abeles activation plot. For more information on EPAPS, see http://www.aip.org/pubservs/epaps.html.
  • 29
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    • Kubo gap, δ, represents the spacing between the successive energy levels of the clusters as a result of the confinement of the electronic wavefunction. δ=4 EF /3N, where EF is the Fermi energy of the bulk metal (5.53 eV for gold) and N is the number of valence electrons in the clusters.
    • Kubo gap, δ, represents the spacing between the successive energy levels of the clusters as a result of the confinement of the electronic wavefunction. δ=4 EF /3N, where EF is the Fermi energy of the bulk metal (5.53 eV for gold) and N is the number of valence electrons in the clusters.
  • 30
    • 56349163248 scopus 로고    scopus 로고
    • Cluster charging energy was estimated using the equation Ec = e2 /2C, where e is the electronic charge and C is the capacitance of the clusters. The capacitance of the clusters was calculated by using the equation (Ref.) C=4π ε0 εrS/ [S-r (1-ε)], where ε0 is the permittivity of free space, ε is the relative dielectric constant of the medium around the clusters, which is taken as 2 based on experimentally determined values for similar acids having three to six C atoms (CRC Handbook for Chemistry and Physics, 73rd ed. 1992-1993), r is the radius of the cluster cores, and S=r+l, where l is the length of the capping molecules, which in the present case is ∼0.6 nm.
    • Cluster charging energy was estimated using the equation Ec = e2 /2C, where e is the electronic charge and C is the capacitance of the clusters. The capacitance of the clusters was calculated by using the equation (Ref.) C=4π ε0 εrS/ [S-r (1-ε)], where ε0 is the permittivity of free space, ε is the relative dielectric constant of the medium around the clusters, which is taken as 2 based on experimentally determined values for similar acids having three to six C atoms (CRC Handbook for Chemistry and Physics, 73rd ed. 1992-1993), r is the radius of the cluster cores, and S=r+l, where l is the length of the capping molecules, which in the present case is ∼0.6 nm.
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    • N. J. Persson, Surf. Sci. 0039-6028 10.1016/0039-6028(86)90501-7 172, 557 (1993).
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    • Persson, N.J.1
  • 32
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    • Since perfectly ordered MPCs units in three-dimensional superlattices (3D SLs) form connecting conducting channels (and hence the temperature dependent metalliclike to semiconductor crossover process), it is reasonable to assume that the randomly deposited MPCs in thin films also produce a few conductive networks. However, the exact mechanism by which such network paths are formed in thin films and 3D SLs is still not completely understood.
    • Since perfectly ordered MPCs units in three-dimensional superlattices (3D SLs) form connecting conducting channels (and hence the temperature dependent metalliclike to semiconductor crossover process), it is reasonable to assume that the randomly deposited MPCs in thin films also produce a few conductive networks. However, the exact mechanism by which such network paths are formed in thin films and 3D SLs is still not completely understood.
  • 33
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    • The resistivity (ρ) of the clusters in the metallic region at two different temperatures (T1 and T2) is given by the expression ρ T2 = ρ T1 (1+α (T2 - T1))), where T2 > T1 and α is the temperature coefficient of resistivity.
    • The resistivity (ρ) of the clusters in the metallic region at two different temperatures (T1 and T2) is given by the expression ρ T2 = ρ T1 (1+α (T2-T1))), where T2 > T1 and α is the temperature coefficient of resistivity.
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    • (1972) Phys. Rev. Lett. , vol.28 , pp. 34
    • Sheng, P.1    Abeles, B.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.