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Wyświetlanie 1-15 z 43
Tytuł:
Two Charge States of Sulphur in GaSb
Autorzy:
Dobaczewski, L.
Kaczor, P.
Karczewski, G.
Poole, I.
Powiązania:
https://bibliotekanauki.pl/articles/1879480.pdf
Data publikacji:
1991-01
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
79.70.+q
78.50.Ge
71.55.Eq
Opis:
Results of the isothermal DLTS, photoconductivity, and photo-Hall measurements, showed that the sulphur-related center in GaSb, being a DX-type defect, has two charge states.
Źródło:
Acta Physica Polonica A; 1991, 79, 1; 133-136
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Absorption Studies of the Sulphur Donor in GaSb
Autorzy:
Kaczor, P.
Gerrits, A. M.
Dobaczewski, L.
Kaliński, Z.
Wittlin, A.
Powiązania:
https://bibliotekanauki.pl/articles/1873018.pdf
Data publikacji:
1995-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.55.Eq
71.70.Ej
78.50.Ge
Opis:
The shallow-deep bistability of the sulphur-related DX centre in GaSb is demonstrated. After photoexcitation of the defect with the near-band gap light the metastable inter-donor transition in the far infrared can be observed. This observation allowed us to evaluate the polaron effective mass and polaron coupling constant for the material.
Źródło:
Acta Physica Polonica A; 1995, 87, 2; 399-402
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Electroepitaxial Growth of GaSb and AlGaSb Thick Epitaxial Layers
Autorzy:
Zytkiewicz, Z. R.
Dobosz, D.
Powiązania:
https://bibliotekanauki.pl/articles/1934052.pdf
Data publikacji:
1995-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
68.55.Df
81.10.Dn
Opis:
Semi-bulk epitaxial layers of GaSb and AlGaSb up to 3 and 1 mm thick, respectively, were successfully grown by the liquid phase electroepitaxy on GaSb substrates. The growth procedure allowed us to achieve high crystallographic perfection as well as compositional uniformity of ternary layers.
Źródło:
Acta Physica Polonica A; 1995, 88, 5; 965-968
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
GaSb Dots Grown on GaAs Surface by Metalorganic Chemical Vapour Deposition
Autorzy:
Bożek, R.
Babiński, A.
Baranowski, J. M.
Stępniewski, R.
Klusek, Z.
Olejniczak, W.
Starowieyski, K.
Wróbel, J.
Powiązania:
https://bibliotekanauki.pl/articles/1934054.pdf
Data publikacji:
1995-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Gh
68.55.-a
Opis:
We report metaloorganic chemical vapour deposition growth of an anisotropic GaSb islands on GaAs (001) surface with a typical dimensions around 200 nm. Results of investigations employing scanning electron microscope, scanning tunnelling microscope and ph9tocapacitance are presented.
Źródło:
Acta Physica Polonica A; 1995, 88, 5; 974-976
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Interaction of Au with GaSb and its Impact on the Formation of Ohmic Contacts
Autorzy:
Piotrowska, A.
Kamińska, E.
Piotrowski, T.
Kasjaniuk, S.
Guziewicz, M.
Gierlotka, S.
Lin, X. W.
Liliental-Weber, Z.
Washburn, J.
Kwiatkowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/1873078.pdf
Data publikacji:
1995-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.40.Ns
Opis:
Interfacial reactions between GaSb and Au were studied by Rutherford backscattering, X-ray diffraction, and cross-sectional transmission electron microscopy. Evaluation of the extent to which the GaSb substrate decomposes was of primary concern. The results give evidence that the reaction takes place even at temperatures as low as 180°C. High reactivity of gold towards GaSb revealed by this study demonstrates that Au-based metallization is not a good candidate for device quality ohmic contacts to GaSb-based devices.
Źródło:
Acta Physica Polonica A; 1995, 87, 2; 419-422
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optical and Electrical Properties of Bulk GaSb and AlGaSb
Autorzy:
Kaczor, P.
Żytkiewicz, Z.
Dobosz, D.
Kaliński, Ż.
Powiązania:
https://bibliotekanauki.pl/articles/1858188.pdf
Data publikacji:
1995-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
63.20.Pw
61.72.Vv
71.55.Eq
Opis:
Optical measurements of bulk GaSb:S reveal the structure of the lattice two phonon absorption and acceptor-valence band transitions. A sulphur related local vibrational modes and several bands related to the optical transitions from the ground state of the acceptor level are observed. A comparison of transport and optical measurements for GaSb:Te and AlGaSb:Te shows that in the alloy it is easier to obtain high concentrations of the electrically active Te impurity.
Źródło:
Acta Physica Polonica A; 1995, 88, 4; 763-766
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Recombination nearby N-n GaSb/GaInAsSb Staggered Lineup Heterojunction
Autorzy:
Popov, A. A.
Imenkov, A. N.
Kolchanova, N. M.
Yakovlev, Yu. P.
Piotrowski, T. T.
Powiązania:
https://bibliotekanauki.pl/articles/1877143.pdf
Data publikacji:
1995-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.20.Nz
Opis:
The recombination nearby large band-offset staggered lineup N-GaSb/n-GaInAsSb heterojunction was investigated by means of the electroluminescence and carrier lifetime measurements. It was demonstrated that the nature of recombination, tuning rate as well as relation between radiative and non-radiative recombination strongly depend on the N-n band-offset and that its increase improves the carrier localization on the N-n interface.
Źródło:
Acta Physica Polonica A; 1995, 87, 2; 559-562
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Materials Technology for GaSb-Based optoelectronic Devices
Autorzy:
Piotrowska, A.
Kamińska, E.
Piotrowski, T. T.
Piskorski, M.
Guziewicz, M.
Papis, E.
Gołaszewska-Malec, K.
Kasjuniuk, S.
Powiązania:
https://bibliotekanauki.pl/articles/1952070.pdf
Data publikacji:
1996-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
73.40.Ns
81.05.Ea
81.40.-z
Opis:
A study is made of surface preparation, metallization, patterning and dielectric deposition with the aim of developing process technology for GaSb-based photonic devices.
Źródło:
Acta Physica Polonica A; 1996, 90, 5; 903-906
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Magnetotransport and Magnetooptics of InAs$\text{}_{1-x}$Sb$\text{}_{x}$ and Heterojunctions Combinations Formed Between InAs and GaSb, AlSb Or InAs$\text{}_{1 -x}$Sb$\text{}_{x}$
Autorzy:
Stradling, R. A.
Powiązania:
https://bibliotekanauki.pl/articles/1968244.pdf
Data publikacji:
1997-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.20.My
76.40.+b
78.20.Ls
Opis:
Cyclotron resonance and interband measurements are reported in magnetic fields up to 160 T for InAs/InAs$\text{}_{1-x}$Sb$\text{}_{x}$ superlattices, one of which is a "self-organised" or "natural" superlattice, and InAs$\text{}_{1-x}$Sb$\text{}_{x}$ epilayers. The samples were grown by MBE at temperatures between 370°C to 500°C. No dependence of the band gap, effective masses or g-values on the growth temperature was detected. Anomalous tilt behaviour was observed for the superlattices. Inversion asymmetry induced spin-splitting of the subbands in gated InAs quantum wells is investigated by means of the Shubnikov-de Haas effect and cyclotron resonance. The non-parabolicity was well fitted by Kane theory, although the measured values of effective mass were substantially higher than predictions. Infrared life time measurements at wavelengths between 6 and 85 microns are undertaken with free electron lasers on InAs/InAs$\text{}_{1-x}$Sb$\text{}_{x}$ superlattices and InAs/AlSb quantum wells. Suppression of the Auger recombination times is demonstrated with the superlattices.
Źródło:
Acta Physica Polonica A; 1997, 92, 5; 851-865
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Annealing Study of Al/GaSb Contact with the Use of Doppler Broadening Technique
Autorzy:
Wang, H. Y.
Weng, H. M.
Ling, C. C.
Ye, B. J.
Zhou, X. Y.
Han, R. D.
Powiązania:
https://bibliotekanauki.pl/articles/2043365.pdf
Data publikacji:
2005-05
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
78.70.Bj
68.35.Ct
73.40.Sx
Opis:
Using a monoenergetic positron beam, annealing study of the Al/n-GaSb system was performed by monitoring the Doppler broadening of the annihilation radiation as a function of the positron implanting energy. The S-parameter against positron energy data was successfully fitted by a three-layer model (Al/interface/GaSb). The annealing out of the open volume defects in the polycrystalline Al layer was revealed by the decrease in the S-parameter and the increase in the effective diffusion length of the Al layer. For the as-deposited samples, a 5 nm interfacial region with S-parameter larger than those of the Al overlayer and the bulk was identified. After the 400ºC annealing, this interfacial region extends to over 40 nm and its S-parameter dramatically drops. This is possibly due to the new phase formation at the interface. Annealing behaviors of S$\text{}_{B}$ and L$\text{}_{+,B}$ of the GaSb bulk showed the annealing out of positron traps (possibly the V$\text{}_{Ga}$-related defect) at 250ºC. However, a further annealing at 400ºC induces the formation of positron traps, which are possibly of another kind of V$\text{}_{Ga}$-related defect and the positron shallow trap GaSb antisite.
Źródło:
Acta Physica Polonica A; 2005, 107, 5; 874-879
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hole Scattering in GaSb: Scattering on Space Charge Regions Versus Dipole Scattering
Autorzy:
Pődör, B.
Powiązania:
https://bibliotekanauki.pl/articles/2044528.pdf
Data publikacji:
2005-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
72.20.Fr
72.20.Dp
72.80.Ey
Opis:
Hole concentration and mobility were investigated by Hall measurements in nominally undoped p-type GaSb in the temperature range from 77 to 300 K. The dependence of the thermal ionization energy of native acceptors on the acceptor centre concentration and on the compensation degree was determined. The temperature dependence of the hole mobility was analyzed using a heuristic semi-empirical model as well as using a phenomenological two-hole band model. Space charge scattering and/or dipole scattering described with a mobility contribution with a~ T$\text{}^{-1}\text{}^{/}\text{}^{2}$ like temperature dependence dominated the hole mobility in the investigated temperature range.
Źródło:
Acta Physica Polonica A; 2005, 108, 5; 837-844
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Infrared Spectroscopy of Light Impurities in GaSb
Autorzy:
Kaczor, P.
Kaliński, Z.
Jakieła, R.
Powiązania:
https://bibliotekanauki.pl/articles/2043723.pdf
Data publikacji:
2005-10
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
71.55.Eq
63.20.Pw
Opis:
In our work we study the doping behaviour of sulphur in Czochralski grown GaSb by means of the high resolution Fourier transform infrared spectroscopy and the secondary ion mass spectroscopy. We have revealed that the sulphur impurity forms an effective mass like donor state bound to the L-minimum of the conduction band. From the far infrared spectrum of this donor we derive the effective band masses of the L band minimum. We also observe local vibrational modes related to the arsenic and phosphorus isoelectronic impurities. From the nearest neighbour isotope splittings of these modes we conclude that the arsenic impurity occupies a tetrahedral substitutional site and the phosphorus impurity - a low symmetry lattice site.
Źródło:
Acta Physica Polonica A; 2005, 108, 4; 711-715
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface treatment of GaSb and related materials for the processing of mid-infrared semiconductor devices
Autorzy:
Papis-Polakowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/378417.pdf
Data publikacji:
2006
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Technologii Elektronowej
Tematy:
semiconductor devices
mid-infrared wavelenth range
GaSb
Opis:
Various chemical treatments of GaSb and related compounds has been studied with the aim to develop procedures of polishing of GaSb substrates, preparation of their surfaces for deposition of metal and dielectric films, for liquid phase epitaxial growth, and finally fabrication of passivating coatings on surfaces of GaSb and its alloys. A broad spectrum of surface characterisation techniques has been used to analyse morphology of the surface and its chemical composition after each of the treatments applied. This allowed us to elaborate a complete set of technological procedures necessary for the fabrication of the efficient GaSb- based photo- and light emitting diodes operating in the midi-infrared wavelength range.
Źródło:
Electron Technology : Internet Journal; 2005-2006, 37/38, 4; 1-34
1897-2381
Pojawia się w:
Electron Technology : Internet Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Rocking Curve Imaging Studies of Laterally Overgrown GaAs and GaSb Epitaxial Layers
Autorzy:
Wierzbicka, A.
Lübbert, D.
Domagała, J.
Zytkiewicz, Z.
Powiązania:
https://bibliotekanauki.pl/articles/1791425.pdf
Data publikacji:
2009-11
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.05.cp
68.55.ag
81.15.Lm
Opis:
X-ray rocking curve imaging technique was used to study crystallographic perfection of laterally overgrown epitaxial structures. We focus on rocking curve imaging studies of Si-doped GaAs and GaSb laterally overgrown layers grown by liquid phase epitaxy on $SiO_{2}$ masked GaAs and GaSb/GaAs substrates, respectively. High spatial resolution offered by rocking curve imaging technique allows studying the effect of laterally overgrown epitaxial wing tilt towards the mask. Distribution of tilt magnitude over the area of laterally overgrown epitaxial stripes is easily determined. In heteroepitaxial GaSb/GaAs laterally overgrown epitaxial structures local mosaicity in the wing area was detected. Since individual grains are clearly visible on rocking curve imaging maps, their size and relative misorientation can be determined.
Źródło:
Acta Physica Polonica A; 2009, 116, 5; 976-978
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural and Optical Properties of Antimony-Containing Epitaxial Layers Grown on GaSb by MOCVD
Autorzy:
Wesołowski, M.
Strupiński, W.
Powiązania:
https://bibliotekanauki.pl/articles/1807649.pdf
Data publikacji:
2009-12
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.15.Gh
81.05.Ea
68.55.A-
68.55.ag
68.55.J-
68.55.Nq
Opis:
Experimental results on MOCVD epitaxy of some antimonides on GaSb substrates are presented. Specific technological problems, which effect in narrow window of process parameters, were overcome and good quality of GaSb/GaSb, InGaSb/GaSb and InGaAsSb/GaSb layers was obtained. Structural, optical and electrical characterisation data are shown and discussed. Developed technology can state a ground work for realisation of antimonide-based optoelectronic devices.
Źródło:
Acta Physica Polonica A; 2009, 116, S; S-62-S-64
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 43

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