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Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods

Abdulrahman, Ahmed Fattah ; Ahmed, Sabah Mohammed ; Barzinjy, Azeez Abdullah ; Hamad, Samir Mustafa ; Ahmed, Naser Mahmoud ; Almessiere, Munirah Abullah

Nanomaterials (Basel, Switzerland), 2021-03, Vol.11 (3), p.677 [Periódico revisado por pares]

Switzerland: MDPI AG

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Título:
Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods
Autor: Abdulrahman, Ahmed Fattah ; Ahmed, Sabah Mohammed ; Barzinjy, Azeez Abdullah ; Hamad, Samir Mustafa ; Ahmed, Naser Mahmoud ; Almessiere, Munirah Abullah
Assuntos: Air bubbles ; Aspect ratio ; Bubbles ; Chemical properties ; Crystal growth ; Crystal structure ; Dark current ; Deposition ; Emission analysis ; Energy dispersive X ray analysis ; Fabrication ; Glass substrates ; Growth conditions ; growth duration ; Growth rate ; High gain ; M-CBD ; Methods ; Morphology ; Nanorods ; Nitrates ; Optical properties ; Photoelectric effect ; Photoelectric emission ; Photometers ; Radio frequency ; Recovery time ; Response time ; RF sputtering ; Scanning electron microscopy ; Ultraviolet detectors ; UV photodetectors ; X ray analysis ; X-ray diffraction ; Zinc oxide ; ZnO nanorods
É parte de: Nanomaterials (Basel, Switzerland), 2021-03, Vol.11 (3), p.677
Notas: ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Ultraviolet (UV) photodetectors (PDs) based on high-quality well-aligned ZnO nanorods (NRs) were fabricated using both modified and conventional chemical bath deposition (CBD) methods. The modified chemical bath deposition (M-CBD) method was made by adding air bubbles to the growth solution during the CBD process. The viability and effectiveness of M-CBD were examined by developing UV PDs based on ZnO NRs. The ZnO nano-seed layer was coated on a glass substrate utilizing radiofrequency (RF) sputtering. The impact of the different growth-times on morphology, growth rate, crystal structure, and optical and chemical properties were investigated systematically using different characterization techniques, such as field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD) analysis, UV-VIS double beam spectrometer, and energy dispersive X-ray analysis (EDX), respectively. The Al/ZnO UV PDs based on ZnO nanorods were fabricated with optimum growth conditions through the two methods of preparation. This study showed that the synthesized ZnO NRs using the M-CBD method for different growth times possess better properties than the conventional method under similar deposition conditions. Despite having the highest aspect ratio and growth rate of ZnO NRs, which were found at 4 h growth duration for both methods, the aspect ratio of ZnO NRs using the M-CBD technique was comparatively higher than the conventional CBD method. Besides, the UV PDs fabricated by the M-CBD method at 5 V bias voltage showed high sensitivity, short response time, quick recovery time, high gain, low dark current, and high photocurrent compared with the UV PD device fabricated by the conventional CBD method.
Editor: Switzerland: MDPI AG
Idioma: Inglês

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Fabrication and Characterization of High-Quality UV Photodetectors Based ZnO Nanorods Using Traditional and Modified Chemical Bath Deposition Methods

Abdulrahman, Ahmed Fattah ; Ahmed, Sabah Mohammed ; Barzinjy, Azeez Abdullah ; Hamad, Samir Mustafa ; Ahmed, Naser Mahmoud ; Almessiere, Munirah Abullah

Switzerland: MDPI AG

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