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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Tanaka, Tooru
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (4/4 displayed)
- 2022Effects of Al doping on the structural, electrical, and optical properties of rock-salt ZnCdO thin films grown by molecular beam epitaxycitations
- 2018Improved photovoltaic properties of ZnTeO-based intermediate band solar cellscitations
- 2017Growth and characterization of Zn1-xCdxTe1-yOy highly mismatched alloys for intermediate band solar cellscitations
- 2010Development of ZnTe1-xOx intermediate band solar cells
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document
Development of ZnTe1-xOx intermediate band solar cells
Abstract
We describe the fabrication of ZnTe<sub>1-x</sub>O<sub>x</sub> intermediate band solar cell (IBSC) using the combination of oxygen ion implantation and pulsed laser melting. Also, we report the first demonstration of homojunction ZnTe solar cells in which n-ZnTe layer is fabricated by thermal diffusion of Al into p-ZnTe. The preliminary results of the ZnTe<sub>1-x</sub>O<sub>x</sub> IBSC are compared with the ZnTe cell. The homojunction ZnTe solar cells exhibited photovoltaic activity with an open circuit voltage of approximately 0.9 V and a maximum short circuit current (J<sub>SC</sub>) of 1.75 mA/cm<sup>2</sup>. J <sub>SC</sub> was found to depend strongly on the location of pn-junction, with shallower pn-junction depth, corresponding to higher J<sub>SC</sub>. Photo-modulated reflectance spectra of ZnTe<sub>1-x</sub>O<sub>x</sub>, show two optical transitions from the valence band to the conduction subband E <sup>+</sup> (∼2.5 eV) and from the valence band to the intermediate band E<sup>-</sup> (∼1.7 eV). The external quantum efficiency of ZnTe <sub>1-x</sub>O<sub>x</sub> solar cell clearly shows PV responses due to the transition from valence band to the two conduction subbands (E<sup>-</sup> and E<sup>+</sup>) demonstrating the photovoltaic action through the intermediate band in this highly mismatched alloy. © 2010 IEEE.