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- W4308800520 abstract "A templated self-assembly technique was utilized in the present study to grow porous zinc oxide nanostructures. The nanostructures were formed by the electrochemical deposition of ZnO through the interstitial spaces between polymer microsphere templates. After the deposition, polymer microspheres were removed by dissolving in chloroform solvent, leaving porous ZnO nanostructures. This technique is benefited from facile controllability of the pore morphology and size by varying the diameter of microspheres. X-ray diffraction analysis showed a dominant peak corresponding to the hexagonal ZnO structure. Moreover, no significant structural strain was observed after the removal of spheres unlike the other synthesis methods of porous materials. The improved photoluminescence (PL) properties revealed an enhancement in the light capturing capability of the systems due to the multiple scattering of light in the pore walls. The porous sample showed a PL blue-shift compared to the flat one, indicating a reduction in crystallite size of ZnO nanostructures. To assess the photonic applications of synthesized porous ZnO substrates, a metal-semiconductor-metal photodetector was developed via the metallization of ZnO nanostructures, and their optoelectrical properties were tested under UV radiation. The results showed an improvement in photosensitivity and quantum efficiency of devices based on porous ZnO substrates which can be assigned to the larger exposed area and elevated rates of electron-hole generation in this sample." @default.
- W4308800520 created "2022-11-15" @default.
- W4308800520 creator A5062338340 @default.
- W4308800520 creator A5063924801 @default.
- W4308800520 date "2023-03-01" @default.
- W4308800520 modified "2023-10-10" @default.
- W4308800520 title "Enhanced optoelectrical performance of ultraviolet detectors based on self-assembled porous zinc oxide nanostructures" @default.
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- W4308800520 doi "https://doi.org/10.1016/j.ceramint.2022.11.098" @default.
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