by admin | Jun 5, 2015 | sem1
NanoRods In nanotechnology, nanorods are one morphology of nanoscale objects. Each of their dimensions range from 1–100 nm. They may be synthesized from metals or semiconducting materials. Standard aspect ratios (length divided by width) are 3-5. Nanorods are produced...
by admin | Jun 5, 2015 | sem1
Spectroscopy The Light of Knowledge is an often used phrase, but it is particularly appropriate in reference to spectroscopy. Most of what we know about the structure of atoms and molecules comes from studying their interaction with light (electromagnetic radiation)....
by admin | Jun 5, 2015 | sem1
Nanoclusters A nanocluster is a grouping of a number of nanoparticles. Nanoclusters have at least one dimension between 1 and 10 nanometers and a narrow size distribution. The size of nanoclusters ranges from sub-nanometer to 10 nm in the diameter. In nanotechnology,...
by admin | Jun 5, 2015 | sem1
Photosensitization Photosensitization is a reaction to light that is mediated by a light-absorbing molecule, which is not the ultimate target. Photosensitization can involve reactions within living cells or tissues, or they can occur in pure chemical systems. In...
by admin | Jun 5, 2015 | sem1
Chemiluminescence Chemiluminescence is the emission of light (luminescence), as the result of a chemical reaction. There may also be limited emission of heat. Given reactants A and B, with an excited intermediate◊, [A] + [B] → [◊] → [Products] + light For example, if...
by admin | Jun 5, 2015 | sem1
Phosphorescence Phosphorescence is a process in which energy absorbed by a substance is released relatively slowly in the form of light. This is in some cases the mechanism used for “glow-in-the-dark” materials which are “charged” by exposure...
