Why nanorods agglomerate at higher doping concentration in bet ga2O3?
Best insight from top research papers
Nanorods tend to agglomerate at higher doping concentrations in beta Ga2O3 due to the influence of the doping material on the interfacial interactions and growth mechanisms . The presence of dopants like In or Ga affects the surface properties and growth behavior of the nanorods, leading to agglomeration tendencies . Additionally, the increase in doping concentration can alter the morphology and structure of the nanorods, promoting agglomeration as observed in the SEM images. This phenomenon is crucial to understand for optimizing the fabrication processes of doped Ga2O3 nanorods to prevent agglomeration and enhance their performance in various applications, such as photodetectors .
Answers from top 5 papers
More filters
| Papers (5) | Insight |
|---|---|
Open access•Journal Article 8 Citations | Higher doping concentration in In-doped Ga2O3 nanobelts can lead to nanorod agglomeration due to increased interactions between doped atoms, affecting morphology and performance. |
87 Citations | At higher doping concentrations, nanorods agglomerate due to increased interactions between doped atoms, leading to clustering, as observed in In-doped Ga2O3 nanobelts. |
Open access•Dissertation 24 Aug 2018 2 Citations | At higher Ga doping concentrations in ZnO, nanorods agglomerate due to increased growth parameters, leading to enlarged particles on nano-spherical bases, as observed in the study. |
| Not addressed in the paper. | |
3 Citations | Higher doping concentration leads to nanorod agglomeration in β-Ga2O3 due to increased oxygen vacancy concentration, affecting interfacial carrier transfer and reducing photoresponse in deep UV photodetectors. |
Related Questions
Why optical band gap of V2O5 increases with Nd doping increases?5 answersThe optical band gap of V2O5 increases with Nd doping due to the incorporation of Nd ions affecting the electronic structure. Nd-doping induces changes in the band structure, causing a shift in the conduction band towards lower energies, leading to a slight widening of the band gap. Additionally, the presence of Nd introduces new visible emission centers, enhancing the visible luminescence efficiency and affecting the optical properties of the material. The study on Nd-doped ZnO thin films also supports this, showing variations in the band gap with increasing Nd dopant concentration, indicating the influence of Nd on the optical characteristics of the material. These combined findings highlight the role of Nd doping in altering the optical band gap of V2O5.
What is the effect of the synthesis method on the properties of gallium oxide nanomaterials?3 answersThe synthesis method has a significant effect on the properties of gallium oxide nanomaterials. Different synthesis techniques result in variations in the crystal structure, morphology, and optical and electrical properties of the nanomaterials. Solvothermal synthesis using in situ X-ray diffraction has been shown to produce γ-Ga2O3 and β-Ga2O3 nanoparticles, with γ-Ga2O3 being a crucial part of the formation mechanism of β-Ga2O3. Chemical and physical techniques have been employed for the synthesis of nanostructured β-gallium oxide, with different processes used for thin films, nanostructures, and bulk gallium oxide. Plasma-chemical deposition has been developed as a modern synthesis method, resulting in gallium oxide layers with properties dependent on the experimental parameters. The presence of a silver catalyst during the growth process has been found to change the morphology of Ga2O3 nanostructures. These findings highlight the importance of selecting an appropriate synthesis method to tailor the properties of gallium oxide nanomaterials for specific applications.
Doping method of semiconductor for photocatalyst5 answersDoping methods for semiconductor photocatalysts have been extensively explored for improving their performance. One method involves constructing an ultrathin layer containing doped heteroatoms on the surface of a semiconductor metal oxide nanoparticle, which prevents the doped atoms from entering the core photocatalytic material. Another approach is the use of doped semiconductor nanomaterials, which combine metal-like and semiconductor properties, offering high conversion efficiencies and wide optical absorption range. Elemental doping is also a widely studied strategy for tuning the electronic structures of semiconductor-based catalysts, optimizing key factors in photocatalysis. Additionally, a preparation method using wool fibers as a nitrogen and sulfur source has been developed to improve the photoresponse range and photocatalytic activity of semiconductor photocatalysts. A bismuth-based semiconductor photocatalyst with a narrow band gap and efficient visible light resource utilization has also been developed using a specific preparation method.
Doping Bi2O3 photocatlytic3 answersDoping of Bi2O3 has been studied to enhance its photocatalytic activity. Various elements and compounds have been used for doping, such as lanthanum, cerium, erbium, and zinc. Doping with lanthanum, cerium, and erbium ions in Bi2O3-Bi2O3–x has been shown to trap photo-generated electrons and reduce charge carrier recombination. Doping with zinc in Bi2O3 has been found to improve catalytic activity due to the electron trapping-detrapping process. The doping process creates impurity defects and surface oxygen vacancies, which facilitate the separation of electron-hole pairs and enhance the photocatalytic ability. These studies demonstrate that appropriate doping can increase the photocatalytic activity of Bi2O3, making it a more effective and efficient material for degrading waste pollutants under visible light irradiation.
Why we do doping of magnesium aluminate spinel?5 answersDoping of magnesium aluminate spinel is done to improve its properties and enhance its performance for various applications. Rare-earth oxide dopants have been used to tailor the microstructure of magnesium aluminate spinel, leading to improved sintering behavior and mechanical properties. Doping with rare-earth elements can also affect the grain boundary segregation behavior, which can have an impact on fracture toughness. Additionally, the use of dopants such as silica has been investigated to control cracking issues in transparent spinel ceramics produced via laser direct deposition. Doping with silica dopants has been found to reduce crack formation by decreasing grain size and introducing a softer secondary phase during deposition. Overall, doping of magnesium aluminate spinel allows for the optimization of its properties and enables its use in a wide range of applications, including refractory materials, thermal barrier coatings, and transparent ceramics.
Which metal oxide nanorods are used for supercapacitors?2 answersTransition metal oxides, specifically zinc-nickel-cobalt oxides (ZNCO), and CoNi-MOF nanorodsare used for supercapacitors.