| LB薄膜中四新戊氧基酞菁锌和四壬基酞菁铜分子聚集体的吸收光谱的温度特性 |
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| 引用本文： | 罗涛 张伟清. LB薄膜中四新戊氧基酞菁锌和四壬基酞菁铜分子聚集体的吸收光谱的温度特性[J]. 光学学报, 1992, 12(8): 23-728 |
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| 作者姓名： | 罗涛 张伟清 |
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| 作者单位： | 中国科学院上海光学精密机械研究所 上海201800(罗涛，张伟清，祁长鸿)，中国科学院上海光学精密机械研究所 上海201800(干福熹) |
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| 摘 要： | 本文制备了四新戊氧基酞菁锌(Tetra-neopentoxy phthalocyanine zine)(TNPPeZn)和四壬基酞菁铜(Tetra-nonyl phthalocyanine copper)(TNPeCu)两种酞菁衍生物的Langmuir-Blodgett(LB)薄膜.通过测量10～473K温度下的吸收光谱,研究了两种薄膜的分子聚集状态.TNPPeZn的LB薄膜中,存在着分子单体和分子二聚体,在吸收光谱中分别表现为680nm和620nm的吸收峰.随着温度的升高,分子单体逐渐转变为分子二聚体,这个过程是不可逆的.TNPeCu的LB薄膜中,除了分子单体和分子二聚体以外,还有吸收为740nm的分子J聚集体存在.随着温度的变化,J聚集体发生可逆变化.
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| 关 键 词： | 吸收光谱 酞菁衍生物 薄膜 LB膜 |
| 收稿时间： | 1991-09-09 |
Temperature dependence of absorption spectra of aggregates in the LB films of tetra-neopentoxy phthalocyanine zine and tetra-nonyl phthalocyanine copper |
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| Luo TAO ZHANG WEIQING Qi CHANGHONG GAN FUXI. Temperature dependence of absorption spectra of aggregates in the LB films of tetra-neopentoxy phthalocyanine zine and tetra-nonyl phthalocyanine copper[J]. Acta Optica Sinica, 1992, 12(8): 23-728 |
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| Authors: | Luo TAO ZHANG WEIQING Qi CHANGHONG GAN FUXI |
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| Abstract: | Langmuir-Blodgett (LB) films of tetra-neopentoxy phthaloeyanine zine and tetra-nonyl phthalocyanine copper are prepared, Absorption spectra at different temperature are measured and aggregates of the films are studied. There are a strong peak at 680 nm and a sideband at 620 nm which are corresponding to monomer and dimer respectively in absorption spectra of tetra-neopentoxy phthalocyanine zine films in room temperature. The monomer is transformed irreversibly into the dimer gradually with temperature increasing. The absorption spectra of tetra-nonyl phthalocyanine copper LB films in room temperature show that there are monomer, dimer and J-aggregates which causes a strong peak at 740 nm, in the LB films. The J-aggregates is destroyed at high temperature and restored again when the temperature decreased. |
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| Keywords: | phthalooyanine LB films absorption spectrum. |
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