Relationship between Molecular Structure of a Doped Dye and the Extent of Laser-Induced Hole Filling in Photochemical Hole-Burning
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概要
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This paper reports that the extent of laser-induced hole filling (LIHF) in photochemical hole burning (PHB) is related to the molecular structure of a doped dye. We measured the extent of LIHF for disodium mesoporphyrin (MPS) doped into poly(vinyl alcohol) (PVA) at 20 K, and found it to be smaller than for sulfonated tetraphenylporphine (TPPS) doped into PVA at 20 K. The MPS molecule is flatter, lighter, and more rigid than the TPPS molecule. These features decrease the number of energy levels in the ground state S_0 and in the electronically excited state S_1 of the dye, resulting in an increase in the site-selectivity in PHB. This causes the smaller extent of LIHF for the MPS system.
- 社団法人応用物理学会の論文
- 1994-02-15
著者
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Murase Norio
Central Research Laboratory Hitachi Ltd.
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Horie Kazuyuki
Department Of Chemistry And Biotechnology Graduate School Of Engineering The University Of Tokyo
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