Fabrication and characterization of perovskite type solar cells using phthalocyanine complexes

• Published in: Applied surface science 2019-09, Vol.488, p.586-592
• Main Authors: Suzuki, Atsushi, Okumura, Hiroki, Yamasaki, Yasuhiro, Oku, Takeo
• Format: Article
• Language: English
• Subjects: Morphology; Perovskite; Photovoltaic property; Phthalocyanine; Solar cell
• ISSN: 0169-4332; 1873-5584
• DOI: 10.1016/j.apsusc.2019.05.305

Perovskite compound-based solar cells using metal free phthalocyanine, silicon phthalocyanine or germanium naphthalocyanine complexes were fabricated and characterized for improving the photovoltaic performance. Additive effects of metal free phthalocyanine, silicon phthalocyanine or germanium naphthalocyanine complexes into the methyl ammonium‑lead-halide perovskite layer on the photovoltaic properties were investigated. The slight addition of the silicon phthalocyanine into the perovskite layer caused suppression of defect and pinhole in the surface layer, which had the best photovoltaic performance. The phthalocyanine complexes play an important role for improving the crystal growth, carrier generation and diffusion without carrier recombination and trapping near the defect and pinhole in the perovskite layer. [Display omitted] •SiPc-added MAPbI3-xClx perovskite based solar cells were characterized.•Slight addition of SiPc into perovskite layer improved photovoltaic performance.•Addition of SiPc caused suppression of defects and pinholes in the perovskite layer.•Addition of SiPc promoted carrier generation and diffusion in the perovskite layer.