Aquapel Glass Treatment

What Is Aquapel

Aquapel Glass Treatment is your chance to change the way drivers see the road in the rain. It can also be used on any window where clearer vision is needed. Aquapel will also fight the elements for auto, marine and home.

Developed and first patented by PPG Industries, leaders in glass technology, and now owned by Pittsburgh Glass Works, Aquapel Glass Treatment represents a product which promotes automobile safety.

Designed for professional application on windshields, side windows, rear windows, glass shower doors, or any other glass surface, Aquapel is a long-lasting glass treatment that:

• Repels rain for remarkably improved vision
• Makes it easier to clear ice, snow and even dirt
• Reduces glare in the rain, especially at night
• Helps reduce water marks and keeps down salt water

My Personal scientific production record

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Upconversion

Photoexcitation at a certain wavelength in the NIR followed by luminescence at a shorter wavelength in the VIS is called NIR to VIS photon upconversion.
This is a rather unusual process since low energy photons are "converted" to higher energy photons. At least two NIR photons are required to generate one VIS photon.
Upconversion can only occur in materials in which multiphonon relaxation processes are not predominant, thus allowing more than one metastable excited state. In rare-earth compounds, the 4f or 5f electrons are efficiently shielded and thus not strongly involved in the metal-to-ligand bonding. As a consequence, electron-phonon coupling to f-f transitions is reduced, and multiphonon relaxation processes are less competitive. The phenomenon of upconversion is therefore most common and best studied in materials containing lanthanide ions. But there are also transition-metal systems and rare-earth / transition-metal combinations which show this phenomenon.