Autor: Bahsi Oral, Z. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Porous Silicon Based Sensor for Organic Vapors
Autorzy:: Kayahan, E.
Bahsi, Z.
Oral, A.
Sezer, M.
Powiązania:: https://bibliotekanauki.pl/articles/1193711.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 07.07.Df
Opis:: Porous silicon (PS) has been an attractive material for enhancing optical properties of silicon. Its large surface area for sensor applications and compatibility with silicon-based technologies has been a driving force for further technology development. In this study, ability of PS to sense at room temperature organic vapors such as acetone, trichloroethylene and hexane, which are harmful to human health, has been investigated. Electrical (DC) and photo-luminescence (PL) measurements in a controlled atmosphere (nitrogen gas and an organic vapor mix) were performed to test the sensor response towards the organic vapors. It was found that PS surface is very sensitive against these vapors. The experimental results also suggested that PS can be used as a new electro-optical material to sense harmful vapors.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1400-1402
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: Sintering Behaviour of ZnO:Cu Ceramics Fabricated by Sol-Gel Derived Powders
Autorzy:: Bahşi, Z.
Oral, A.
Aslan, M.
Kayahan, E.
Ozer, M.
Powiązania:: https://bibliotekanauki.pl/articles/1491465.pdf
Data publikacji:: 2012-01
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.05.Je
81.05.Mh
Opis:: Doped zinc(II) oxide (ZnO:Cu) ceramics were prepared from sol-gel derived nanocrystalline powders. Powders were prepared by dissolving zinc and copper acetates in isopropyl alcohol. Ethanolamine was used to enhance the solubility of acetates. Powders were produced by the calcination of the dried gels at 750°C. The crystal size of the undoped powders were uniform and around 50 nm while grain size of Cu doped powders varied between 0.3 and 2 μm. X-ray mapping of the powders showed that Cu was not homogeneously distributed and some particles had higher Cu content. After pressing of the powders, both doped and undoped ceramics were sintered at 1200C for 2 h. Microstructure of the Cu doped ceramics showed that Cu atoms partially dissolved in ZnO matrix and the rest formed a second phase in the grain boundaries. Average grain size of the ZnO:Cu ceramics was around 30 μm. Relative densities of the ceramics increased from 0.695 to 0.857 by Cu doping.
Źródło:: Acta Physica Polonica A; 2012, 121, 1; 271-273
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Evaluation of Refractive Index Variations of TiO₂:SiO₂:Zr Thin Films by Molar Ratio
Autorzy:: Bahsi Oral, Z.
Powiązania:: https://bibliotekanauki.pl/articles/1401367.pdf
Data publikacji:: 2015-04
Wydawca:: Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:: 81.20.Fw
Opis:: Zr-doped and undoped TiO₂-SiO₂ thin films were fabricated by using sol-gel dip coating. TiO₂:SiO₂:Zr films with different molar ratio were coated on glass substrates. Refractive indexes and the thicknesses of thin films were measured with Metricon 2010 Prism Coupler. The theoretical and measured refractive indexes of thin films were found to be consistently changing with molar ratio. The measured refractive indexes of thin films were lower than the theoretical ones due to the porosity of the structure.
Źródło:: Acta Physica Polonica A; 2015, 127, 4; 1314-1316
0587-4246
1898-794X
Pojawia się w:: Acta Physica Polonica A
Dostawca treści:: Biblioteka Nauki

Artykuł

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