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Wyświetlanie 1-2 z 2
Tytuł:
Window layer based on ZnO and Ag thin films incorporated in solar cells as a part of hybrid energy-saving system
Autorzy:
Gholamzadeh, Hadi
Hosseini, Reza
Veladi, Hadi
Rahimi, Hadi
Powiązania:
https://bibliotekanauki.pl/articles/2202771.pdf
Data publikacji:
2023
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
solar cell
hybrid energy harvester
optical transmission
material
photonic multilayer
Opis:
We have started a new research project on a hybrid power generation system consisting of piezoelectric, thermoelectric and solar cell modules. In the first step, we have focused on the antireflection coating based on zinc oxide (ZnO) and metal nanolayers incorporated in solar cells. In layered structure containing ZnO and metal nanoscale layers, we have presented the possibility of increasing wave transmission in the visible region by adding the top and bottom cap layers. The enhancement of optical transmission is very important in improving the performance of sensor protections, solar cells, UV protective films and transparent conductive display panels electrode. It is found that, the structure containing both the top and bottom cap layers (S3) yields larger transmittance than the structures S1 without any cap or S2 just with one cap layer. The maximum transmittance in the visible range can be increased from 33% to 67%. In addition, for the TE mode (TM mode), the maximum value of transmission in the S1 and S2 structures occurs at angles close to normal incidence while in the S3 multilayer it happens around 1 radian, that is, the behavior of the TE mode is the opposite of the TM mode. Also, when the incident angle varies, the band edges experience a blue shift. The amount of TE shift is more pronounced than TM one. Moreover, the metal with higher plasma frequency will move the band gap edges to the higher frequencies.
Źródło:
Optica Applicata; 2023, 53, 1; 141--152
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Design of tunable multichannel filter in a one-dimensional photonic crystal incorporating uniaxial metamaterial at microwave frequency
Autorzy:
Kazempour, Behnam
Powiązania:
https://bibliotekanauki.pl/articles/174347.pdf
Data publikacji:
2019
Wydawca:
Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:
uniaxial indefinite metamaterial
optical properties
multilayer design
Opis:
We proposed to design a tunable multichannel optical filter composed of uniaxial indefinite metamaterial and dielectric photonic crystal categories arrangement, which can be employed as a valuable variation of peak transmission in microwave frequency. Because of the optical axis and polarization dependence of the uniaxial metamaterial layer, the position trend in the multichannel optical filter is shown to also rely on both TE and TM polarizations. The numerical results show that by changes of the incidence angle, width of photonic band gap (PBG) compacts (widens) at TE (TM) polarization and the PBG of the structure shifts towards the higher frequency region, for both polarizations. In addition, the multichannel optical filter properties and shift trend of the PBG are also affected by changing the optical axis of the uniaxial indefinite metamaterial. Thus, results shown that without appending defect layer in this structure, the sets of comb-like resonant peaks in transmission modes can be utilized in the lower or higher band edge of PBG at TE and TM polarizations.
Źródło:
Optica Applicata; 2019, 49, 1; 13-26
0078-5466
1899-7015
Pojawia się w:
Optica Applicata
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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