What is the colour of silver nanoparticles?

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Has anyone come across any study of the varying spectrum, colour and CCT of daylight at various geographic locations/conditions?

CCT = Color Correlated Temperature Please provide references. Preferably for tropical regions. Thanks in Advance

08 September 2019 3,900 10 View

Why is the standard colour temperature for Daylight 6500 K?

Isn't 6500 K bluish? To me daylight looks yellowish. We've all coloured the sun and sunlight as yellow since we've been kids. Someone please explain why 6500 K is standard. Is it something that...

08 September 2019 915 4 View

Why is there a loss of information in the below mathematical operation?

To elaborate: If X = (convolution of p(a), q(a) ,r(a))/(convolution of p(a), q(a)) Y = (convolution of p(a), q(a) ,s(a))/(convolution of p(a), q(a)) Why is X almost equal to Y even if...

08 September 2019 7,789 5 View

Can someone explain how the size of the tolerance ellipsoids in the Lab space was defined?

Were they experimentally derived based on color perception from human subjects or can the size of the tolerance ellipsoid for every "color" be mathematically calculated for every point in the 3D...

07 August 2019 6,068 2 View

Can someone physically explain the conversion PROCESS of RGB color space to XYZ color space and LAB color space?

05 June 2019 6,117 16 View

How to convert RGB values to their corresponding colors and their dominant wavelengths in MATLAB?

I understand there's a challenge in the conversion as the colors are not monochromatic and there could be metamerism. I just want an approximation for the purpose of visualization of data.

04 May 2019 4,994 12 View

How do you define and measure human error in experiments?

For eg. sample variability in different solar cells (which are of identical configurations) fabricated manually.

08 September 2018 6,829 10 View

Can anyone suggest some good journals to submit work on DSSCs with normalized impact factor between 1 and 3?

Thanks in advance for your help.

09 October 2017 9,925 3 View

How does Sigma Aldrich check for 99% purity of compounds?

For eg. I would like to what are the analytical techniques used in checking purity of natural dyes bought from Sigma Aldrich so as to conduct the same tests on the dyes extracted from other sources.

02 March 2017 8,688 2 View

Dye Sensitized Solar Cells: How is power conversion efficiency calculated from wavelength vs % EQE data?

I would like to compare it with the PCE obtained from I-V curves.In an EQE measurement, at every wavelength of light that is made incident, the DSSC give a certain current, voltage and efficiency...

08 September 2016 9,210 7 View

I need to image mesoporous silica nanoparticles that are in ~100 nm size and do high resolution TEM to look at mesopores. what grids should I use?

Need to image mesoporous silica nanoparticles using the TEM. Also, need high resolution TEM images to see the mesoporous structure. Kindly suggest what kind of grids to use. Thanks, Shatadru

02 March 2021 1,787 2 View

How to compare different concentrations of nanoparticles for characterization from ICP-MS?

I took measurements of different concentrations of 15 nm and 5 nm Au nano particle solutions. I'm trying to determine which concentration I measured gives the best reading overall. I also...

02 March 2021 7,626 1 View

Can chitosan alone can act as a reducing agent for Cu(0) nanoparticle sythesis?

[Synthesizing Cu nanoparticles without using chemical reductants]

01 March 2021 8,359 1 View

What are the new 2D nanomaterials were used for Silver nanoparticles stabilization?

In the stabilization of AgNPs are vital in current research interest. However, some of the 2D nano-materials like graphene oxide, MoS2, etc... previously used to stabilize it. But still they shown...

01 March 2021 2,207 3 View

What is the state of the drug inside solid lipid nanoparticles (SLNs)?

I am a little confuse with the mechanism of solid lipid nanoparticles (SLNs). The main point of encapsulating drugs into SLNs is because some drugs have low solubility in water. Therefore, SLNs...

01 March 2021 3,703 3 View

How to check the uv-vis absorption of nanoparticle by surface plasmon resonance?

I try to check the uv-vis absorption of Indium nanoparticle. Now I am measuring in solution, can I measure it in the form of a film?

01 March 2021 930 3 View

Distribution of particles in metal matrix?

How would define the "good" and "poor" distribution of particles within the matrix. Is there a quantitative solution to assess the distribution of the particles, which then having denotation of...

28 February 2021 7,397 8 View

How can I calculate the rdf of water molecules around 'Na' ions that are closest(adsorbed) to the nanoparticle(solute)?

Hi, I want to calculate the radial distribution function for water molecules around the Na+ ions adsorbed on the surface of a spherical nanoparticle using the gromacs trajectory dynamically? For...

28 February 2021 5,650 1 View

LEDs on Vis Light photo degradation of MB water sol via N doped TiO2 in a mini flume?

Good day to all, I have no experience with light emitting diodes. I am building a glass mini flume to demonstrate the photo degradation of Methylene Blue in water running over self cleaning...

26 February 2021 4,026 5 View

Can anyone share his experience regards Smoothing in origin?

I am working on TiO2 composite material and the results of XRD have a lot of small/junk peaks and while I apply a smooth filter in Origin then the other characteristics peaks disappear so anyone...

26 February 2021 8,183 3 View