Fluctuations of the peak current of tunnel diodes in multi-junction solar cells (2009)
Jandieri, K., Baranovskii, S.D., Stolz, W., Gebhard, F., Guter, W., Hermle, M., ...
Interband tunnel diodes are widely used to electrically interconnect the individual subcells in multi-junction solar cells. Tunnel diodes have to operate at high current densities and low voltages,...
Temperature Dependence and Physical Properties of Ga(NAsP)/GaP Semiconductor Lasers (2008)
Chamings, J, Adams, A R, Sweeney, S J, Kunert, B, Volz, K, Stolz, W
We report on the properties of GaNAsP/GaP lasers which offer a potential route to producing lasers monolithically on silicon. Lasing has been observed over a wide temperature range with pulsed...
Optimization of annealing conditions of (GaIn)(NAs) for solar cell applications (2008)
Volz, K., Lackner, D., Nemeth, I., Kunert, B., Stolz, W., Baur, C., ...
Resonant tunneling as a dominant transport mechanism in n-GaAs/p-GaAs tunnel diodes (2008)
Jandieri, K., Baranovskii, S.D., Rubel, O., Stolz, W., Gebhard, F., Guter, W., ...
Current-voltage characteristics of Ga0.99In0.01As tunnel diodes are studied experimentally and theoretically. Three possible tunneling mechanisms are considered: direct band-to-band tunneling,...
Resonant electron tunneling through defects in GaAs tunnel diodes (2008)
Jandieri, K., Baranovskii, S.D., Rubel, O., Stolz, W., Gebhard, F., Guter, W., ...
Current-voltage characteristics of GaAs tunnel diodes are studied experimentally and theoretically. In theoretical calculations contributions of three different transport mechanisms are considered:...
Hole confinement in quantum islands in Ga(AsSb)/GaAs/(AlGa)As heterostructures (2008)
Horst, S., Chatterjee, S., Hantke, K., Klar, P. J., Nemeth, I., Stolz, W., ...
Doping electrical properties and solar cell application of GaInNAs (2008)
Volz, K., Stolz, W., Teubert, J., Klar, P.J., Heimbrodt, W., Dimroth, F., ...
Hydrostatic pressure experiments on dilute nitride alloys (2007)
Klar, PJ, Teubert, J, Gungerich, M, Niebling, T, Gruning, H, Heimbrodt, W, ...
Material development for improved 1 eV (Galn)(NAs) solar cell structures (2007)
Volz, K., Torunski, T., Lackner, D., Rubel, O., Stolz, W., Baur, C., ...
The dilute nitride (GaIn)(NAs) material system grown lattice matched to GaAs or Ge with a 1 eV band gap is an interesting material for the use in four-junction solar cells with increased...
Improving the material quality of MOVPE grown (GaIn) (NAs) (2006)
Volz, K., Lackner, D., Rubel, O., Stolz, W., Baur, C., Dimroth, F., ...
FULLSPECTRUM: a new PV wave making more efficient use of the solar spectrum (2005)
Luque, A., Marti, A., Bett, A., Andreev, V.M., Jaussaud, C., Roosmalen, J.A.M., ...
FULLSPECTRUM: A new PV wave making more efficient use of the solar spectrum (2005)
Marti, A., Bett, A., Andreev, V.M., Jaussaud, C., Roosmalen, J.A.M. Van, Alonso, J., ...
FULLSPECTRUM: a new PV wave making more efficient use of the solar spectrum (2005)
Luque, A, Marti, A, Bett, A, Andreev, VM, Jaussaud, C, Van Roosmalen, JAM, ...
Development of a 1.0 eV (GaIn)(NAs) solar cell (2003)
Baur, C., Bett, A.W., Dimroth, F., Riesen, S. Van, Kunert, B., Traversa, M., ...
Monitoring the non-parabolicity of the conduction band in GaN8As/GaAs quantum wells (2003)
Klar, PJ, Gruning, H, Heimbrodt, W, Koch, J, Stolz, W, Tomic, S, ...
Klar, PJ, Gruning, H, Heimbrodt, W, Weiser, G, Koch, J, Volz, K, ...
Gruning, H, Klar, PJ, Heimbrodt, W, Koch, J, Stolz, W, Lindsay, A, ...
Semiconductor resonator solitons above band gap (2001)
Taranenko, V. B., Weiss, C. O., Stolz, W.
We show experimentally the existence of bright and dark spatial solitons in semiconductor resonators for excitation above the band gap energy. These solitons can be switched on, both spontaneously...
Spatial solitons in a pumped semiconductor resonator (2001)
Taranenko, V. B., Weiss, C. O., Stolz, W.
Bright and dark spatial solitons are observed in an optically pumped semiconductor resonator. The pumping allows to considerably reduce the light intensity necessary for the existence of the solitons...
A Hauschild, C Garbe, W Stolz, U Ellwanger, S Seiter, R Dummer, ...
Monitoring the sign reversal of the valence band exchange integral in (Ga,Mn) As (2001)
Heimbrodt, W., Hartmann, T., Klar, P. J., Lampalzer, M., Stolz, W., Volz, K., ...
Growth of antimony-based materials in a multiwafer planetary MOVPE-reactor (2000)
Agert, C., Lanyi, P., Sulima, O.V., Stolz, W., Bett, A.W.
Four-junction photovoltaic solar cells are expected to reach conversion efficiencies around 40%. Mechanical stacking of two monolithic tandem cells is suggested. As a top cell the highly developed...
Quantitative topographic assessment of Cu incorporation in GaAs (2000)
Baeumler, M., Stibal, R., Stolz, W., Steinegger, T., Jurisch, M., Maier, M., ...
The modification of the bulk resistivity of semi-insulating GaAs caused by incorporation of copper has been studied. Wafers cut from an ingot annealed, intentionally Cu contaminated LEC grown crystal...
Giannini, C., Baumbach, T., Lübbert, D., Felici, R., Tapfer, L., Marschner, T., ...
We investigate the morphological transition from a steplike interface modulation to a highly periodic lateral thickness modulation that occurs on symmetrically strained (GaIn)As/GaAs/(PAs)/GaAs...
Wolff, M.von, Thaler, C.J., Strowitzki, T., Broome, J., Stolz, W., Tabibzadeh, S.
It is widely assumed that, after ovulation, the human endometrium undergoes specific changes and becomes receptive to the implantation of embryo during the mid-secretory phase. When implantation does...
Baumbach, G., Giannini, C., Lübbert, D., Felici, R., Tapfer, L., Marschner, T., ...
Symmetrically strained superlattices on off-oriented substrates are studied by x-ray grazing incidence diffraction in oder to investigate compositional ordering separately from the related lattice...
PMS-Probleme vor der Regel. : Prämenstruelles Syndrom erkennen, behandeln, überwinden. (1998)
Lamertz, C., Wittchen, H.-U., Stolz, W., Wittchen, K.
Luminescence dating in archaeology: recent developments (1997)
Rieser, U, Lang, Andreas; U0037725 ;, Wagner, G.A, Krbetscheck, M.R, Stolz, W
Horsch, A., Stolz, W., Neiß, A., Abmayr, W., Pompl, R., Bernklau, A., ...
Optical Dating: Some Luminescence Properties of Natural Feldspars (1996)
Krbetschek, M.R., Rieser, U., Stolz, W.
Feldspars are widely used as dosemeters in dating archaeological and geological materials by luminescence methods, especially infrared stimulated luminescence, IRSL. Some fundamental problems of this...
Stolz, W., Hauser, M., Ploog, K., Ramsteiner, M., Wagner, J.
Raman scattering by local vibrational modes (LVM) is demonstrated to allow a direct assessment of Si or Be incorporation in single delta-doped GaAs layers. Placing the Si doping spike at different...
Incorporation of SI in delta-doped GaAs studied by local vibrational mode spectroscopy. (1989)
Stolz, W., Hauser, M., Ploog, K., Ramsteiner, M., Wagner, J.
Raman scattering by local vibrational modes has been used to study the incorporation of Si in single delta-doped GaAs layers. Placing the doping spike at different depths underneath the surface, a...
POSITION AND CHARACTER (Ɖ OR X) OF ENERGY STATES IN SHORT-PERIOD (GaAs)m(AlAs)n SUPERLATTICES (1987)
Nagle, J., Garriga, M., Stolz, W., Isu, T., Ploog, K.
We have grown a series of (GaAs)m(AlAs)n short period superlattices by molecular beam epitaxy including samples with m=n and m≠n. Low temperature photoluminescence, excitation spectroscopy and...
Stolz, W., Ploog, K., Wagner, J.
Photoluminescence and photoluminescence excitation spectroscopy on Ga0.47In0.53As multi quantum wells confined either by homogeneous ternary Al0.48In0.52As barriers or by...
POSITION AND CHARACTER (Ɖ OR X) OF ENERGY STATES IN SHORT-PERIOD (GaAs)m(AlAs)n SUPERLATTICES (1987)
Nagle, J., Garriga, M., Stolz, W., Isu, T., Ploog, K.
We have grown a series of (GaAs)m(AlAs)n short period superlattices by molecular beam epitaxy including samples with m=n and m≠n. Low temperature photoluminescence, excitation spectroscopy and...
POSITION AND CHARACTER (Ɖ OR X) OF ENERGY STATES IN SHORT-PERIOD (GaAs)m(AlAs)n SUPERLATTICES (1987)
Nagle, J., Garriga, M., Stolz, W., Isu, T., Ploog, K.
We have grown a series of (GaAs)m(AlAs)n short period superlattices by molecular beam epitaxy including samples with m=n and m≠n. Low temperature photoluminescence, excitation spectroscopy and...
POSITION AND CHARACTER (Ɖ OR X) OF ENERGY STATES IN SHORT-PERIOD (GaAs)m(AlAs)n SUPERLATTICES (1987)
Nagle, J., Garriga, M., Stolz, W., Isu, T., Ploog, K.
We have grown a series of (GaAs)m(AlAs)n short period superlattices by molecular beam epitaxy including samples with m=n and m≠n. Low temperature photoluminescence, excitation spectroscopy and...
POSITION AND CHARACTER (Ɖ OR X) OF ENERGY STATES IN SHORT-PERIOD (GaAs)m(AlAs)n SUPERLATTICES (1987)
Nagle, J., Garriga, M., Stolz, W., Isu, T., Ploog, K.
We have grown a series of (GaAs)m(AlAs)n short period superlattices by molecular beam epitaxy including samples with m=n and m≠n. Low temperature photoluminescence, excitation spectroscopy and...
Schwarz, T F, Serke, S, Hottenträger, B, Von Brunn, A, Baurmann, H, Kirsch, A, ...
Erythroid progenitor cells generated in vitro from peripheral human blood in the presence of interleukin-3 and erythropoietin were infected with human parvovirus B19. B19 virus DNA replication was...
Schwarz, T F, Serke, S, Hottenträger, B, Von Brunn, A, Baurmann, H, Kirsch, A, ...
Erythroid progenitor cells generated in vitro from peripheral human blood in the presence of interleukin-3 and erythropoietin were infected with human parvovirus B19. B19 virus DNA replication was...
Kaudewitz, P., Braun-Falco, O., Ernst, M., Landthaler, M., Stolz, W., Gerdes, J.
The growth fraction (GF) of 72 human malignant melanomas was determined by immunostaining with monoclonal antibody Ki-67. A positive correlation of GF and histopathologically-assessed prognostic...
Kárpáti, S, Meurer, M, Stolz, W, Bürgin-Wolff, A, Braun-Falco, O, Krieg, T
The ultrastructural binding sites of endomysium antibodies, specific serological markers of gluten sensitive enteropathy, were investigated in the rabbit oesophagus using the immunogold technique....
Hauschild, A, Garbe, C, Stolz, W, Ellwanger, U, Seiter, S, Dummer, R, ...
In several phase II-trials encouraging tumour responses rates in advanced metastatic melanoma (stage IV; AJCC-classification) have been reported for the application of biochemotherapy containing...