Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10638327 | Materials Chemistry and Physics | 2005 | 4 Pages |
Abstract
The degeneration of energy level of α, β, γ, δ-tetrahydroxylphenylporphyrin (THPP) and red shift of the photovoltage peaks of THPP are observed as the size of nano-TiO2 decreasing using surface photovoltage (SPV) technique, while that of α, β, γ, δ-tetraphenylporphyrin (TPP) have little change. The reason for that is the existence of hydroxyls of THPP, which interact with the surface of nano-TiO2. This difference was also demonstrated by IR spectrum.
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Authors
Ziheng Li, Dejun Wang, Yingyan Shi, Ping Wang, Xingqiao Wang,