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Basically without math, certain metals have elecrons that are "free" silver is one of these metals. These free electrons are necessary for a condition called a surface plasmon to exist. Now silver particles in an aqueous solution will have two parts to its refractive index, that of the water and that of the silver nanoparticles. Next is the interaction of light. Photons can be thought as particles or waves, in this case we will think of them as waves. When an electromagnetic wave interacts with the surface plasmon mode it causes the free electrons that are part of the surface plasmon to oscillate, usually in anti phase to the electromagnetic wave. This essentially causes certain wavelengths of light to be blocked from propagating, causing them to be reflected and giving the colour that you see.
Im actuallydoing some research on silver nanoparticles at the moment, and we can change this colour from yellow to almost anything that we want. For a yellow colour we see a plasmon resonance peak ca. 420nm but based on the size and shape of the silver nanoparticles we can tune the plasmon resonance peak.
Mie theory can be used to calcuate the extinction co-efficents. The reason why this is also called the surface plasmon is that the light waves will not penetrate more than 50nm so the interactions at the surface are the most important.
What else can I help you with?
Resistor color code 120 k ohm resistance plus or minus deviation?
brown, red, yellow , in case of gold its 5% tolerence, silver 10% tolerence, no color 20% tolence..
What color are capacitors on a motherboard?
red (rare), metallic green, blue, light blue, brown, lime green, yellow, silver, black, gray, purple (rare).
What is helmet color of construction site engineers?
yellow
What is the color code for steam pipe in industrial applications?
silver is the color that is generally used.
Value of resistor Yellow violet yellow gold color code?
470K ohm at 5% tolerance
What color is an aqueous solution of Ag?
An aqueous solution of silver ions (Ag+) typically appears colorless. However, if there are silver nanoparticles present in the solution, it may show a yellow hue.
Color of silver iodide?
Silver iodide is typically a yellow or light yellow color.
Why does ZnO appear yellow on heating?
ZnO appears yellow upon heating due to the formation of zinc oxide nanoparticles. The optical properties of the nanoparticles can cause a shift in the absorption spectrum, leading to the yellow color. This change in color is often attributed to the quantum confinement effect that occurs at the nanoscale level.
What color is silver chloride?
It has white color with yellow shades
What colour do yellow and silver make together?
gold
What color does yellow and silver make?
Mixing yellow and silver together will not create a new color; instead, the colors will remain separate. Yellow will maintain its hue, while silver will retain its metallic appearance.
What is the color of April?
White or Silver
What color is silver chromate?
Silver chromate is a yellowish-white or pale yellow color.
What color is Ag2CrO4?
Silver chromate has a brown red colour
Why did the silver turn yellow after cleaning?
The silver turned yellow after cleaning because it reacted with sulfur compounds in the air or in the cleaning agent, forming silver sulfide, which has a yellow color.
What is Pete Wentz' favorite color?
I think it's yellow...pinkHis favorite color is yellow...not pink. The reason his favorite color is yellow is because it's the color of his favorite flower.black and purple
What color are perch eggs?
Some are silver, and some are yellow.
