Matches in SemOpenAlex for { <https://semopenalex.org/work/W2051809294> ?p ?o ?g. }
- W2051809294 endingPage "8194" @default.
- W2051809294 startingPage "8182" @default.
- W2051809294 abstract "Schottky barrier heights on n-type GaAs can be made to vary from 0.30 to 1.20 eV by adjusting the conditions under which the Schottky contact is fabricated. To explain the observed trends it is asserted (a) that there are several defect pinning points associated with GaAs surfaces, (b) that an appropriate interfacial permittivity may be defined to predict the barrier height from the metal work function and the position of the appropriate pinning point, and (c) the pinning point is sensitive to the metal-GaAs reaction chemistry. In a thermodynamic context the present analysis is an electronegativity model. The work function of a polycrystalline metal and the charge neutrality level of the semiconductor are interpreted as the bulk chemical potentials of the two materials. When the two materials are brought into contact electronegativity equalization takes place as charge is transferred across the interface in the formation of metal-semiconductor bonds. Proper derivation of the equilibrium bond charge dipole requires a knowledge of the chemical ``softness'' of the two surfaces being brought into contact as well as the electronegativity difference of the two materials. The equilibrium dipole determines the barrier height of an ``ideal interface Schottky contact.'' A description is given of how the softness of metal and semiconductor surfaces may be defined and how near surface defects in the semiconductor modify the interfacial dipole. The strength of the model is in its descriptive power as it can identify the specific native defects at which pinning is observed in GaAs Schottky diodes. It provides a framework for the development of a predictive model based on identifying the particular native defects produced by the reaction of specific metals with a semiconductor as a function of the process history." @default.
- W2051809294 created "2016-06-24" @default.
- W2051809294 creator A5074006835 @default.
- W2051809294 date "1999-03-15" @default.
- W2051809294 modified "2023-09-26" @default.
- W2051809294 title "Schottky barriers on GaAs: Screened pinning at defect levels" @default.
- W2051809294 cites W1633465164 @default.
- W2051809294 cites W1963940300 @default.
- W2051809294 cites W1965059618 @default.
- W2051809294 cites W1965575107 @default.
- W2051809294 cites W1967519902 @default.
- W2051809294 cites W1967779367 @default.
- W2051809294 cites W1969184500 @default.
- W2051809294 cites W1969691811 @default.
- W2051809294 cites W1976728479 @default.
- W2051809294 cites W1977111067 @default.
- W2051809294 cites W1978825769 @default.
- W2051809294 cites W1980061358 @default.
- W2051809294 cites W1980231231 @default.
- W2051809294 cites W1984263782 @default.
- W2051809294 cites W1984781904 @default.
- W2051809294 cites W1986219696 @default.
- W2051809294 cites W1989660258 @default.
- W2051809294 cites W1991402528 @default.
- W2051809294 cites W1991706485 @default.
- W2051809294 cites W1991725169 @default.
- W2051809294 cites W1992040652 @default.
- W2051809294 cites W1992637309 @default.
- W2051809294 cites W1996169648 @default.
- W2051809294 cites W1998200163 @default.
- W2051809294 cites W2001884271 @default.
- W2051809294 cites W2004947159 @default.
- W2051809294 cites W2005715793 @default.
- W2051809294 cites W2005826786 @default.
- W2051809294 cites W2006113232 @default.
- W2051809294 cites W2006934689 @default.
- W2051809294 cites W2007330293 @default.
- W2051809294 cites W2007566610 @default.
- W2051809294 cites W2010065857 @default.
- W2051809294 cites W2010851874 @default.
- W2051809294 cites W2013461555 @default.
- W2051809294 cites W2015512379 @default.
- W2051809294 cites W2015590601 @default.
- W2051809294 cites W2016699489 @default.
- W2051809294 cites W2018206566 @default.
- W2051809294 cites W2019244064 @default.
- W2051809294 cites W2019656321 @default.
- W2051809294 cites W2020001325 @default.
- W2051809294 cites W2020591820 @default.
- W2051809294 cites W2022810137 @default.
- W2051809294 cites W2024757457 @default.
- W2051809294 cites W2025285816 @default.
- W2051809294 cites W2025917378 @default.
- W2051809294 cites W2026901144 @default.
- W2051809294 cites W2027884548 @default.
- W2051809294 cites W2030998623 @default.
- W2051809294 cites W2032242752 @default.
- W2051809294 cites W2032334961 @default.
- W2051809294 cites W2032487854 @default.
- W2051809294 cites W2032705571 @default.
- W2051809294 cites W2033842938 @default.
- W2051809294 cites W2034239462 @default.
- W2051809294 cites W2034637842 @default.
- W2051809294 cites W2037013838 @default.
- W2051809294 cites W2037585616 @default.
- W2051809294 cites W2038104609 @default.
- W2051809294 cites W2038478593 @default.
- W2051809294 cites W2038992739 @default.
- W2051809294 cites W2041561611 @default.
- W2051809294 cites W2043695984 @default.
- W2051809294 cites W2044202126 @default.
- W2051809294 cites W2046131489 @default.
- W2051809294 cites W2051324071 @default.
- W2051809294 cites W2052602322 @default.
- W2051809294 cites W2055562539 @default.
- W2051809294 cites W2056550628 @default.
- W2051809294 cites W2057665591 @default.
- W2051809294 cites W2061856977 @default.
- W2051809294 cites W2063343185 @default.
- W2051809294 cites W2064271504 @default.
- W2051809294 cites W2065511708 @default.
- W2051809294 cites W2065560294 @default.
- W2051809294 cites W2066283867 @default.
- W2051809294 cites W2068003913 @default.
- W2051809294 cites W2069679568 @default.
- W2051809294 cites W2075513565 @default.
- W2051809294 cites W2078327288 @default.
- W2051809294 cites W2078457273 @default.
- W2051809294 cites W2078632210 @default.
- W2051809294 cites W2079363740 @default.
- W2051809294 cites W2079585292 @default.
- W2051809294 cites W2079934326 @default.
- W2051809294 cites W2082626368 @default.
- W2051809294 cites W2085301154 @default.
- W2051809294 cites W2085524177 @default.
- W2051809294 cites W2090010637 @default.
- W2051809294 cites W2091457354 @default.
- W2051809294 cites W2093078042 @default.