The effect of axial ligands on the quantum yield of singlet oxygen of new silicon phthalocyanine

Huafei Lv; Xuemei Zhang; Xinxin Yu; Sujuan Pan; Shusen Xie; Hongqin Yang; Yiru Peng

doi:10.1117/12.2246271

31 October 2016 The effect of axial ligands on the quantum yield of singlet oxygen of new silicon phthalocyanine

Huafei Lv, Xuemei Zhang, Xinxin Yu, Sujuan Pan, Shusen Xie, Hongqin Yang, Yiru Peng

Proceedings Volume 10024, Optics in Health Care and Biomedical Optics VII; 1002441 (2016) https://doi.org/10.1117/12.2246271
Event: SPIE/COS Photonics Asia, 2016, Beijing, China

Abstract

The singlet oxygen (¹O₂) production abilitity is an important factor to assess their potential as effective of photosensitizers. In this paper, the ¹O₂ production rate, production rate constant and quantum yield of silicon(IV) phthalocyanine axially bearing 1-3 generation dendritic substituents were evaluated by a high performance liquid chromatographic method. The results show that the ¹O₂ production rate and production rate constant of these compounds increase gradually with dendritic generations increase. And the ¹O₂ quantum yield of silicon(IV) phthalocyanine with first generation dendritic ligand was the highest. This may be due to the isolation effect of the dendritic ligands on the phthalocyanine core. The parameters of the observed ¹O₂ production properties will provide valuable data for these dendrimer phthalocyanines as promising photosensitizer in PDT application.

Citation Download Citation

Huafei Lv, Xuemei Zhang, Xinxin Yu, Sujuan Pan, Shusen Xie, Hongqin Yang, and Yiru Peng "The effect of axial ligands on the quantum yield of singlet oxygen of new silicon phthalocyanine", Proc. SPIE 10024, Optics in Health Care and Biomedical Optics VII, 1002441 (31 October 2016); https://doi.org/10.1117/12.2246271

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