Can inert shell change UCNP's red-to-green ratio?
Best insight from top research papers
Yes, the inert shell of upconversion nanoparticles (UCNPs) can change the red-to-green ratio. Inert-core/active-shell UCNPs have been designed to achieve temperature-dependent upconversion luminescence (UCL) behavior, and they exhibit a stronger luminescence thermal enhancement tendency compared to active-core UCNPs . The luminescence thermal enhancement behavior of the inert-core/active-shell UCNPs appears to be core-size dependent, and it is suggested that the alleviation of surface quenching induced by lattice thermal expansion is responsible for this behavior . Additionally, the architecture of UCNP, specifically the presence of an inert shell, influences both the luminescence properties and the energy transfer to attached dyes, with inert-shell UCNPs having the brightest luminescence but the lowest resonance energy transfer (RET) efficiency . Therefore, the inert shell of UCNPs can affect the red-to-green ratio by influencing the luminescence properties and energy transfer processes .
Answers from top 3 papers
More filters
| Papers (3) | Insight |
|---|---|
18 Citations | The paper does not provide information about the effect of an inert shell on the red-to-green ratio of upconversion nanoparticles (UCNPs). |
| The paper does not provide information about whether an inert shell can change the red-to-green ratio of UCNP. | |
30 Citations | The paper does not directly address whether an inert shell can change the red-to-green ratio of UCNPs. |
Related Questions
How did Shell become big?5 answersShell became a prominent player through strategic decisions and innovative approaches. They focused on developing software for oil exploration and production, recognizing the critical role of technology. Additionally, Shell embraced long-term planning by exploring alternate future scenarios through programs like Technology Futures and Future Agenda, linking foresight to innovation for new opportunities. Transitioning to a global advertising approach and leveraging dynamic capabilities were pivotal in Shell's success. Furthermore, Shell adapted its management development to economic changes, identifying the "Just do it" and "Big Me" organizational models for profitability and social responsibility, respectively. Karl Shell's contributions to economic theory and his editorial role in the Journal of Economic Theory also significantly impacted Shell's growth and influence.
How are Shell and BP's financial strategies changing in response to the growing demand for renewable energy sources?4 answersShell and BP are adapting their financial strategies in response to the increasing demand for renewable energy sources. Shell is actively incorporating biomass-based and circular chemicals into its operations, aiming to produce renewable chemicals from plant matter and waste plastics by assigning the carbon from these feedstocks to their ethylene and alcohol ethoxylate surfactant output. On the other hand, BP has signed a long-term deal to purchase products from Clean Planet Energy, indicating a shift towards investing in alternative energies. Both companies are emphasizing clean energy and climate change in their discourse and strategies, with Shell showing a strong increase in discussions related to climate and low-carbon transition. These actions reflect a broader trend among major oil companies to align their financial strategies with the transition towards green and low-carbon development.
What the Linux shell is.?5 answersThe Linux shell is a crucial component used for system administration tasks on UNIX machines, such as software package installations in FOSS distributions. It serves as a command-line interface that allows users to interact with the operating system by executing commands. In the context of security, diversifying Linux shell commands can protect against malware attacks by making it harder for malicious software to exploit the system's functionality. Additionally, shells like Esther in the Famke operating system provide a strongly typed, functional language-based interface for file manipulation, application execution, and process management, combining the benefits of interpreters and compilers for efficient and type-safe command line operations. Overall, the Linux shell plays a vital role in system management, security, and efficient command execution in UNIX-based environments.
Is the egg shells good for plants?5 answersEggshells have proven to be beneficial for plant growth and development. Studies have shown that eggshell powder can serve as a soil enhancer, providing essential macro and micro nutrients for plants. Additionally, eggshell powder can be a sustainable alternative source of calcium carbonate, reducing the reliance on non-renewable sources like limestone. Furthermore, eggshells have been effective in ameliorating lead toxicity in plants, enhancing productivity and nutrient uptake. The use of eggshell powder fertilizer has also demonstrated positive effects on the growth of plants like dragon fruit, particularly in root development. Overall, the research indicates that incorporating eggshells into gardening practices can be advantageous for plant health and sustainability.
How useful can the egg shells be?5 answersEggshells have various useful applications. They can be used as a source of calcium carbonate and calcium oxide, which can be transformed into hydroxyapatite for bone regeneration. Eggshell membrane (ESM) can be utilized in various formats such as intact, powdered, solubilized, and after digestion/hydrolysis for applications in adsorption, chemical processing support, biosensors, and medical technology. Eggshell waste can also be used for wastewater treatment, specifically for the removal of common textile dyes. The eggshell and eggshell membrane contain organic and inorganic components that contribute to tissue repair and wound healing. Additionally, there has been a significant increase in patents related to eggshell applications, including biomedical, chemical, engineering, and environmental technologies. Overall, eggshells have the potential to be repurposed for various valuable applications, making them a valuable resource.
What synthesis improvement of NaYF4:Yb, Er core/shell UCNPs for enhanced green and red upconversion via optimization of synthesis parameters?4 answersThe synthesis parameters of NaYF4:Yb, Er core/shell UCNPs can be optimized to enhance green and red upconversion. By varying the molecular weight and relative amount of PVP in the synthesis, the morphology and diameter of the UCNPs can be controlled. Additionally, the luminescence intensity of LiErF4 can be enhanced by incorporating a suitable Gd3+ content, leading to a core-shell structure of LiErF4@LiGdF4:Yb,Er with tunable upconversion luminescence. The synthesis of NaYF4:Er@NaGdF4:Yb@NaYF4:Er core/shell/shell UCNPs can also enhance two-step two-frequency upconversion luminescence. Furthermore, the upconversion red emission intensity of Er3+ ions in NaErF4 core-shell nanocrystals can be effectively enhanced by regulating their structures and doping ions, such as NaErF4@NaYbF4:2%Er3+ core-shell structures. Finally, the upconversion luminescence of NaYF4:Yb,Er@NaYF4 core-shell nanostructures can be optimized by adjusting the Yb ion concentration in the NaYF4 shell.