Influence of interfacial atomic structure on the Schottky-barrier height of Si(111)-Pb

1995 ◽  
Vol 51 (24) ◽  
pp. 17740-17743 ◽  
Author(s):  
P. B. Howes ◽  
K. A. Edwards ◽  
D. J. Hughes ◽  
J. E. Macdonald ◽  
T. Hibma ◽  
...  
1990 ◽  
Vol 193 ◽  
Author(s):  
Hideaki Fujitani ◽  
Setsuro Asano

ABSTRACTUsing the linear muffin-tin orbital method in the atomic sphere approximation (LMTO-ASA), we studied the electronic structure of the Si(111) interface for four different materials: CaF2, NiSi2, CoSi2, and YSi2. We examined how the interface states and Schottky barrier height depend on the interface atomic structure.


1991 ◽  
Vol 05 (06) ◽  
pp. 397-405
Author(s):  
D.R. HESLINGA ◽  
T.M. KLAPWIJK ◽  
H.H. WEITERING ◽  
T. HIBMA

We review experiments on epitaxial Pb/Si (111) interfaces. Emphasis is laid on the interplay between structural and electrical properties, in particular the relation of the Schottky barrier height (SBH) with the structure of the first monoatomic Pb adlayer. Two structures can be formed, which differ only in the arrangement of the first layer of Pb and Si atoms at the interface. One, a Si (111)(7×7)- Pb structure, has a SBH of 0.70 eV. The other, a Si (111)(√3×√3) R 30°- Pb structure has a SBH of 0.93 eV. Angle resolved photoemission results favor an interpretation in terms of Fermi level pinning by a discrete locali::ed interface state.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1188
Author(s):  
Ivan Rodrigo Kaufmann ◽  
Onur Zerey ◽  
Thorsten Meyers ◽  
Julia Reker ◽  
Fábio Vidor ◽  
...  

Zinc oxide nanoparticles (ZnO NP) used for the channel region in inverted coplanar setup in Thin Film Transistors (TFT) were the focus of this study. The regions between the source electrode and the ZnO NP and the drain electrode were under investigation as they produce a Schottky barrier in metal-semiconductor interfaces. A more general Thermionic emission theory must be evaluated: one that considers both metal/semiconductor interfaces (MSM structures). Aluminum, gold, and nickel were used as metallization layers for source and drain electrodes. An organic-inorganic nanocomposite was used as a gate dielectric. The TFTs transfer and output characteristics curves were extracted, and a numerical computational program was used for fitting the data; hence information about Schottky Barrier Height (SBH) and ideality factors for each TFT could be estimated. The nickel metallization appears with the lowest SBH among the metals investigated. For this metal and for higher drain-to-source voltages, the SBH tended to converge to some value around 0.3 eV. The developed fitting method showed good fitting accuracy even when the metallization produced different SBH in each metal-semiconductor interface, as was the case for gold metallization. The Schottky effect is also present and was studied when the drain-to-source voltages and/or the gate voltage were increased.


2011 ◽  
Vol 98 (16) ◽  
pp. 162111 ◽  
Author(s):  
J. Kováč ◽  
R. Šramatý ◽  
A. Chvála ◽  
H. Sibboni ◽  
E. Morvan ◽  
...  

2015 ◽  
Vol 36 (6) ◽  
pp. 597-599 ◽  
Author(s):  
Lin-Lin Wang ◽  
Wu Peng ◽  
Yu-Long Jiang ◽  
Bing-Zong Li

2007 ◽  
Vol 994 ◽  
Author(s):  
S. L. Liew ◽  
C. T. Chua ◽  
D. H. L Seng ◽  
D. Z. Chi

AbstractSchottky barrier height (ÖB) engineering of NiGe/n-Ge(001) diodes was achieved through germanidation induced dopant segregation on As implanted-Ge substrates. was reduced from 0.55 eV to 0.16 eV with increasing As dose on n-Ge(001) while on p-Ge(001), the diodes exhibited increasing ÖB.


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