Molecular formula :
nature : also known as the composite. (1) growth of free radicals by combining two formed a macromolecule saturated termination reaction, as the light. (2) by the semiconductor electronic role-excitation from the valence band to the conduction band, creating an electron-hole pair, the solid surface may be passed "composite Center" captured a minority-carrier and the majority of Carrier, resulting in electron-hole pairs of disappeared, to achieve stability, the process known as the composite.
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