Effect of Ge passivation on interfacial properties of crystalline Gd2O3 thin films grown on Si substrates

作者: Apurba Laha , A. Fissel , H. J. Osten

DOI: 10.1063/1.3318260

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摘要: The incorporation of few monolayers Ge chemisorbed on Si surface has been found to have significant impact the electrical properties crystalline Gd2O3 grown epitaxially substrates. Although coverage does not show any influence epitaxial quality layers, however, it exhibits a strong their properties. We that by incorporating at interface between and Si, capacitance-voltage characteristics, fixed charge density traps Pt/Gd2O3/Si capacitor are much superior those layers clean surfaces.

参考文章(28)
K. Kajiyama, Y. Tanishiro, K. Takayanagi, Reconstructions and phase transitions of Ge on the Si(111)7 × 7 surface: I. Structural changes Surface Science. ,vol. 222, pp. 38- 46 ,(1989) , 10.1016/0039-6028(89)90333-6
Apurba Laha, H. J. Osten, A. Fissel, Influence of interface layer composition on the electrical properties of epitaxial Gd2O3 thin films for high-K application Applied Physics Letters. ,vol. 90, pp. 113508- ,(2007) , 10.1063/1.2713142
G.S. Lujan, W. Magnus, L-Å Ragnarsson, S. Kubicek, S. De Gendt, M. Heyns, K. De Meyer, Modelling mobility degradation due to remote coulomb scattering from dielectric charges and its impact on MOS device performance Microelectronics Reliability. ,vol. 45, pp. 794- 797 ,(2005) , 10.1016/J.MICROREL.2004.11.046
Nan Wu, Qingchun Zhang, Chunxiang Zhu, D. S. H. Chan, M. F. Li, N. Balasubramanian, Albert Chin, Dim-Lee Kwong, Alternative surface passivation on germanium for metal-oxide-semiconductor applications with high-k gate dielectric Applied Physics Letters. ,vol. 85, pp. 4127- 4129 ,(2004) , 10.1063/1.1812835
G. Pourtois, M. Houssa, B. De Jaeger, B. Kaczer, F. Leys, M. Meuris, M. Caymax, G. Groeseneken, M. M. Heyns, Threshold voltage shifts in Si passivated (100)Ge p-channel field effect transistors: Insights from first-principles modeling Applied Physics Letters. ,vol. 91, pp. 023506- ,(2007) , 10.1063/1.2756367
Y. L. Wang, H.-J. Gao, H. M. Guo, Sanwu Wang, Sokrates T. Pantelides, Bonding configurations and collective patterns of Ge atoms adsorbed on Si(111)-(7 x 7). Physical Review Letters. ,vol. 94, pp. 106101- 106400 ,(2005) , 10.1103/PHYSREVLETT.94.106101
M C Xu, H F Ma, W Ji, B Yang, H J Gao, Growth of Ge hexagonal meshwork films on Si(111)-7 × 7 Nanotechnology. ,vol. 17, pp. 4413- 4415 ,(2006) , 10.1088/0957-4484/17/17/021
H. F. Ma, Z. H. Qin, M. C. Xu, D. X. Shi, H.-J. Gao, Sanwu Wang, Sokrates T. Pantelides, Formation and evolution of a self-organized hierarchy of Ge nanostructures on Si(111)-(7x7): STM observations and first-principles calculations Physical Review B. ,vol. 75, pp. 165403- ,(2007) , 10.1103/PHYSREVB.75.165403
Hiroyuki Oyanagi, Kunihiro Sakamoto, Ryu Shioda, Yuji Kuwahara, Koukichi Haga, Ge overlayers on Si(001) studied by surface-extended x-ray-absorption fine structure Physical Review B. ,vol. 52, pp. 5824- 5829 ,(1995) , 10.1103/PHYSREVB.52.5824