Synthesis and photovoltaic properties of octacarboxy-metallophthalocyanine dyes applied in dye-sensitized solar cells

Journal of the Serbian Chemical Society

关键词: octacarboxy-metallophthalocyanine dyes;    3d orbital;    photophysical properties;    electrochemical properties;    energy gaps;    DSSC;   

DOI  :  10.2298/JSC110710026J

来源: DOAJ

【 摘 要 】

A series of octacarboxy-metallophthalocyanine dyes, i.e., MgOCPc, MnOCPc,FeOCPc and ZnOCPc with different central metal ions were designed andsynthesized by microwave irradiation. The effects of the introduction ofdifferent metal ions with variant 3d orbitals (3d0, 3d5, 3d6, and 3d10,respectively) in the centre of the phthalocyanine rings on the thermal,photophysical, and electrochemical properties ofoctacarboxy-metallophthalocyanines were characterized and evaluated indetails. The results showed that ZnOCPc and MgOCPc with closed-shell metalions and FeOCPc with an open-shell metal ion had excellent thermal property.However, MnOCPc with a half-full-shell metal ion had a lowest decompositiontemperature and largest Q band red shifts. By theoretical calculation, theenergy gaps of MgOCPc, MnOCPc, FeOCPc and ZnOCPc were 0.11, 0.10, 0.20 and0.22V, respectively. Applied in TiO2 nanocrystalline dye-sensitized solarcells (DSSC), the photovoltaic properties of the four dyes were obtainedunder AM1.5 irradiation (100 mW cm-2).

【 授权许可】

Unknown