Enhanced photoprotective compositions and methods for the evaluation thereof
View Patent ↗A method of analyzing metal oxides. In this method, metal oxide is provided, heated with microwaves, and a conductivity parameter of the metal oxide is determined. From the conductivity parameter, a determination is made regarding a pyroelectric effect of the metal oxide.
1. A method of analyzing a metal oxide, said method comprising the steps of:
heating said metal oxide with cumulative microwave exposure;
measuring a thermal response of said metal oxide to said microwave exposure;
correlating said thermal response to a conductivity of said metal oxide; and
correlating said conductivity to a pyroelectric effect of said metal oxide.
2. The method of claim 1 , wherein said thermal response is a temperature.
3. The method of claim 1 , wherein said step of heating said metal oxide comprises intermittent heating.
4. The method of claim 1 , wherein said metal oxide is coated.
5. The method of claim 1 , wherein said metal oxide is uncoated.
6. The method of claim 1 , wherein said metal oxide is dispersed in a solvent.
7. A method of analyzing zinc oxide, said method comprising the steps of:
heating said zinc oxide with cumulative microwave exposure;
measuring a thermal response of said zinc oxide to said microwave exposure;
correlating said thermal response to a conductivity of said zinc oxide; and
correlating said conductivity to a pyroelectric effect of said zinc oxide.
8. The method of claim 7 , wherein said zinc oxide is n-doped.
9. The method of claim 7 , wherein said zinc oxide is selected from the group of coated zinc oxides and uncoated zinc oxides.
10. The method of claim 7 , wherein said zinc oxide is dispersed in a solvent.
11. The method of claim 7 , wherein said step of heating said zinc oxide with microwave exposure is intermittent heating.