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이돈근,장동리,강영수 한국자기공명학회 2002 Journal of the Korean Magnetic Resonance Society Vol.6 No.2
The photoproduced cation radical of N-methylphenothiazine (PC1) doped into phenyltriethoxysilane (PhiTEOS), vinyltriethoxysilane (VTEOS) and methyltriethoxysilane (METOS) was studied with electron spin resonance (ESR) and electron nuclear double resonance (ENDOR). The photoinduced charge separation efficiency was determined by integration of ESR spectra which correspond to the amount of photoproduced cation radical in the matrices. This was correlatively studied with the polarity and pore size of the gel matrices. The relative polarity of the matrices was determined by measuring max values of PC1 in the different matrices. The relative pore size among the matrices was determined by measuring relative proton matrix ENDOR line widths of the photoproduced cation radical of PC1. The decay kinetic constants of the cation radical of PC1 in the different matrices was relatively studied with fitting the biexponential decay curves after exposure at the ambient condition. This is correlatively interpreted with the polarity and pore size of the matrices 영어논문