| 摘要 |
Disclosed are phthalocyanine compounds, which are to be subjected to film formation and then heating. When the temperature of the heating is raised from 60°C to 80°C, 150°C or 200°C, the light absorption bands of the phthalocyanine compounds are shifted to the near-infrared region. Therefore, the phthalocyanine compounds are suitable for use in fields wherein an absorption band in the near-infrared region is necessitated. Further, the phthalocyanine compounds exhibit excellent solubility in organic solvents and thus can be easily formed into films by spin coating or other simple methods. |
