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- 1. Phys. Rev. B 75, 075202 (2007) , “Theoretical study of Li and Na as n-type dopants for diamond”, J. P. Goss and P. R. BriddonPhosphorus is the n-type dopant of choice for diamond, but results in a deep donor level and alternatives are being sought. One possibility is the incorporation of interstitial alkali metal impurities such as Li and Na. We present the results of density-functional calculations used to predict... (Read more)
- 2. Phys. Rev. B 73, 245210 (2006) , “First-principles investigation of a bistable boron-oxygen interstitial pair in Si”, A. Carvalho, R. Jones, M. Sanati, S. K. Estreicher, J. Coutinho, and P. R. BriddonLocal density functional calculations are used to predict and compare the properties of the two distinct interstitial boron-interstitial oxygen (BiOi) complexes recently reported in the literature. The electronic and free energies, as well as the small... (Read more)
- 3. Phys. Rev. Lett. 97, 256602 (2006) , “Bistability-Mediated Carrier Recombination at Light-Induced Boron-Oxygen Complexes in Silicon”, Mao-Hua Du, Howard M. Branz, Richard S. Crandall, and S. B. ZhangA first-principles study of the BO2 complex in B-doped Czochralski Si reveals a defect-bistability-mediated carrier recombination mechanism, which contrasts with the standard fixed-level Shockley-Read-Hall model of recombination. An O2 dimer distant from B causes only weak... (Read more)
- 4. Appl. Phys. Lett. 87, 262108 (2005) , “Fast-forming boron-oxygen-related recombination center in crystalline silicon”, Karsten Bothe and Jan SchmidtThe mechanism of a fast carrier lifetime degradation effect proceeding within seconds in boron-doped Czochralski silicon is investigated. The decrease in the carrier lifetime is attributed to the formation of a deep boron-oxygen-related recombination center with a strongly asymmetric... (Read more)
- 5. Phys. Rev. B 72, 045219 (2005) , “Fluorine in Si: Native-defect complexes and the supression of impurity diffusion”, Giorgia M. Lopez, Vincenzo Fiorentini, Giuliana Impellizzeri, Salvatore Mirabella, Enrico NapolitaniThe transient enhanced diffusion of acceptor impurities severely affects the realization of ultrahigh doping regions in miniaturized Si-based devices. Fluorine codoping has been found to suppress this transient diffusion, but the mechanism underlying this effect is not understood. It has been proposed that fluorine-impurity or fluorine–native-defect interactions may be responsible. Here we clarify this mechanism combining first-principles theoretical studies of fluorine in Si and purposely designed experiments on Si structures containing boron and fluorine. The central interaction mechanism is the preferential binding of fluorine to Si-vacancy dangling bonds and the consequent formation of vacancy-fluorine complexes. The latter effectively act as traps for the excess self-interstitials that would normally cause boron transient enhanced diffusion. Instead, fluorine-boron interactions are marginal and do not play any significant role. Our results are also consistent with other observations such as native-defect trapping and bubble formation. (Read more)
- 6. Phys. Rev. B 61, 1918 (2000) , “EPR investigation of manganese clusters in silicon”, J. Martin, J. Wedekind, H. Vollmer, and R. LabuschManganese centers were investigated in silicon specimens with initial doping concentrations between 1.5×1015 P cm-3 and 6×1015 B cm-3. All known Mn centers could be observed but the cluster Mni3Mni was missing in highly-boron-doped... (Read more)
- 7. J. Vac. Sci. Technol. B 16, 2134-2153 (1998) , “What can electron paramagnetic resonance tell us about the Si/SiO2 system?”, P. M. Lenahan, J. F. Conley, Jr.Electron paramagnetic resonance (EPR) measurements of Si/SiO2 systems began over 30 years ago. Most EPR studies of Si/SiO2 systems have dealt with two families of defects: Pb centers and E centers. Several variants from each group have... (Read more)BPSG PSG Si SiO2| EDMR EPR electric-field-effect electrical-meas. etching gamma-irradiation| 10B 11B 1H 29Si 2D 31P BOHC Boron Deuterium E' E'-delta H(I) Hydrogen Nb Nitrogen Oxygen P1 P2 P4 POHC Pb Pb0 Pb1 Phosphorus Silicon amorphous complex(=3) dangling-bond device dielectric interface pair(=2) | last update: Takahide Umeda
- 8. J. Appl. Phys. 54, 179-183 (1983) , “The Mechanism of the Enhancement of Divacancy Production by Oxygen During Electron Irradiation of Silicon. II. Computer Modeling”, G. S. Oehrlein, I. Krafcsik, J. L. Lindström, A. E. Jaworowski, and J. W. CorbettNumerical tests of possible models for the oxygen dependence of the divacancy introduction rate in silicon electron irradiated at room temperature were performed on a computer. Only the model in which oxygen traps Si self-interstitials can reproduce all the experimental data. Our modeling results... (Read more)
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Updated at 2010-07-20 16:50:39
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