Influence of heavy doping on Seebeck coefficient in silicon-on-insulator

Ikeda, H.; Salleh, F.
January 2010
Applied Physics Letters;1/4/2010, Vol. 96 Issue 1, p012106
Academic Journal
We measured the Seebeck coefficient of heavily P-doped silicon-on-insulator layers with P concentrations above 1×1019 cm-3. The coefficient decreased with increasing P concentration, and with a peak of the Seebeck coefficient around 5×1019 cm-3. We calculated the density-of-states (DOS) of bulk Si based on theoretical models of impurity-band formation, ionization-energy shift, and conduction-band tailing. The calculated impurity-concentration dependence of the energy derivative of the DOS at the Fermi energy also showed a peak. Consequently, the Seebeck coefficient of the heavily doped Si is ruled by the DOS distribution, similar to metallic materials.


Related Articles

  • Bimetallic Fe–V catalyzed magnesium films exhibiting rapid and cycleable hydrogenation at 200 °C. Zahiri, Beniamin; Amirkhiz, Babak Shalchi; Danaie, Mohsen; Mitlin, David // Applied Physics Letters;1/4/2010, Vol. 96 Issue 1, p013108 

    We examined hydrogen sorption in 1.5 μm thick Mg–Fe–V films, using the binary alloys as baselines. At 200 °C both Mg–V and Mg–Fe–V absorb in tens of seconds, and desorb in tens of minutes. The ternary alloys show minimal kinetic or capacity degradation...

  • Optical study of disorder and defects in hydrogenated amorphous silicon carbon alloys. Nguyen-Tran, Th.; Suendo, V.; Cabarrocas, P. Roca i // Applied Physics Letters;7/4/2005, Vol. 87 Issue 1, p011903 

    We have studied the defect density and disorder in hydrogenated amorphous silicon carbon alloys produced by rf glow discharge of silane-methane-hydrogen mixtures, by combining spectroscopic ellipsometry and photothermal deflection spectroscopy measurements. Increasing the methane flow rate leads...

  • Comment on “Oxidation of alloys containing aluminum and diffusion in Al2O3” [J. Appl. Phys. 95, 3217 (2004)]. Åkermark, Torbjörn // Journal of Applied Physics;6/1/2005, Vol. 97 Issue 11, p116109 

    The introduction of AlO as the diffusing species can be seen as an attempt to bridge the gap between the two scientific communities: those working on the oxidation of metals and those working on the oxidation of silicon. The attempt is, however, not successful and would have been more successful...

  • CASTABILITY OF AL-SiCp METAL MATRIX COMPOSITES IN THIN WALLED CASTINGS. KAYAL, SOURAV; BEHERA, RABINDRA; SUTRADHAR, G. // International Journal of Engineering Science & Technology;Jul2012, Vol. 4 Issue 7, p3481 

    In work it has been presented results of influence of pouring temperature (Tp) and at different weight fraction of SiCp (R) on castability of Aluminium Silicon metal matrix composites in thin walled castings with wall thickness of 3, 4 and 5 mm, respectively. Analysis was done on Aluminium...

  • Effect of HCl addition on gas-phase and surface reactions during homoepitaxial growth of SiC at low temperatures. Melnychuk, G.; Lin, H. D.; Kotamraju, S. P.; Koshka, Y. // Journal of Applied Physics;Sep2008, Vol. 104 Issue 5, p053517 

    A complex influence of HCl addition on gas-phase and surface reactions during the low-temperature halo-carbon homoepitaxial growth of 4H-SiC was investigated. The addition of HCl was employed to reduce the undesirable effects of homogeneous gas-phase nucleation leading to formation of silicon...

  • The Poole—Frenkel Effect with Allowance for Multiphonon Deep-Center Ionization in Amorphous Silicon Nitride. Novikov, Yu. N. // Physics of the Solid State;Dec2005, Vol. 47 Issue 12, p2233 

    The Poole–Frenkel mechanism, both with and without allowance for multiphonon ionization of deep centers, was used to describe the conductivity of amorphous silicon nitride. The dependence of the frequency factor on electron–phonon coupling strength was considered. Taking into...

  • Influence of melt treatments and turning inserts on cutting force and surface integrity in turning of Al–7Si and Al–7Si–2.5Cu cast alloys. Basavakumar, K. G.; Mukunda, P. G.; Chakraborty, M. // Journal of Materials Science;Oct2007, Vol. 42 Issue 20, p8714 

    The microstructures, machinability and surface characteristics of Al–7Si and Al–7Si–2.5Cu cast alloys were studied after various melt treatments like grain refinement and modification. Results indicate that combined grain refined and modified Al–7Si–2.5Cu cast...

  • Orientational order parameter in CO2-based alloys with rare gases from THEED data: pure CO2. Danchuk, V. V.; Solodovnik, A. A.; Strzhemechny, M. A. // Low Temperature Physics;Jun2007, Vol. 33 Issue 6/7, p600 

    Using the transmission high-energy electron diffraction technique, we study the temperature dependence of the diffraction reflection intensities from the solid phase of CO2. To deduce absolute values of the orientational order parameter, we modify the existing reconstruction method to take into...

  • Quantitative prediction of solute strengthening in aluminium alloys. Leyson, Gerard Paul M.; Curtin, William A.; Hector, Louis G.; Woodward, Christopher F. // Nature Materials;Sep2010, Vol. 9 Issue 9, p750 

    Despite significant advances in computational materials science, a quantitative, parameter-free prediction of the mechanical properties of alloys has been difficult to achieve from first principles. Here, we present a new analytic theory that, with input from first-principles calculations, is...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics