Schottky barrier lowering with the formation of crystalline Er silicide on n-Si upon thermal annealing

被引:17
|
作者
Reckinger, Nicolas [1 ]
Tang, Xiaohui [1 ]
Bayot, Vincent [1 ]
Yarekha, Dmitri A. [2 ]
Dubois, Emmanuel [2 ]
Godey, Sylvie [2 ]
Wallart, Xavier [2 ]
Larrieu, Guilhem [2 ]
Laszcz, Adam [3 ]
Ratajczak, Jacek [3 ]
Jacques, Pascal J. [4 ]
Raskin, Jean-Pierre [5 ]
机构
[1] Univ Catholique Louvain, Microelect Lab, B-1348 Louvain, Belgium
[2] IEMN ISEN, CNRS, UMR 8520, F-59652 Villeneuve Dascq, France
[3] Inst Electr Mat Technol, PL-02668 Warsaw, Poland
[4] Univ Catholique Louvain, Lab Ingn Mat & Procedes, B-1348 Louvain, Belgium
[5] Univ Catholique Louvain, Microwave Lab, B-1348 Louvain, Belgium
关键词
annealing; elemental semiconductors; erbium compounds; Schottky barriers; silicon; transmission electron microscopy; X-ray diffraction; X-ray photoelectron spectra; RARE-EARTH-METALS; THIN-FILMS; ROOM-TEMPERATURE; SI(100); AMORPHIZATION; SOURCE/DRAIN; GROWTH; DIODES;
D O I
10.1063/1.3136849
中图分类号
O59 [应用物理学];
学科分类号
摘要
The evolution of the Schottky barrier height (SBH) of Er silicide contacts to n-Si is investigated as a function of the annealing temperature. The SBH is found to drop substantially from 0.43 eV for the as-deposited sample to reach 0.28 eV, its lowest value, at 450 degrees C. By x-ray diffraction, high resolution transmission electron microscopy, and x-ray photoelectron spectroscopy, the decrease in the SBH is shown to be associated with the progressive formation of crystalline ErSi(2-x).
引用
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页数:3
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