Optical limiting properties of phthalocyanine-fullerene derivatives
Peiwang ZhuCenter for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People’s Republic of ChinaPeng WangCenter for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People’s Republic of ChinaWenfeng QiuCenter for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People’s Republic of ChinaYunqi LiuCenter for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People’s Republic of ChinaCheng YeCenter for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, People’s Republic of ChinaGuangyu FangDepartment of Physics, Harbin Institute of Technology, Harbin 150001, People’s Republic of ChinaYinglin SongDepartment of Physics, Harbin Institute of Technology, Harbin 150001, People’s Republic of China
2001en
ABI
Abstract
The solubility of fullerene (C60) is improved by combining it with an alkyl group of substituted copper (II) phthalocyanine (CuPc) through Diels–Alder reaction. Optical limiting properties of this compound were investigated by using a double frequency Nd:YAG laser system at a wavelength of 532 nm with pulse duration of 45 ps. The results show that there are two separated conjugation systems in this kind of molecule. Both of them independently contribute to the reverse saturable absorption. Broadband optical limiting materials might be designed based on the combination of various optical limiting molecules through covalent bonds. Phase separation problems existing in the mixture of various materials can be avoided.
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