Effects of Metal Phthalocyanines as Hole-transporting Layers of Perovskite-based Solar Cells

Autor: Yuya Ohishi, Yasuhiro Yamasaki, Yuki Okada, Atsushi Suzuki, Takeo Oku, Haruka Ueda
Rok vydání: 2017
Předmět:
Zdroj: Chemical and Materials Engineering. 5:34-42
ISSN: 2332-1067
2332-1032
DOI: 10.13189/cme.2017.050203
Popis: Halogen halide perovskite solar cells using active layer of CH3NH3PbI3 with vanadyl phthalocyanine (VOPc), vanadyl naphthalocyanine (VONc) and, tetrakis (tert-butyl)[bis(trihexylsiloxy)germanium phthalocyanine] (GePc) doped 2,2',7,7'-tetrakis-(N,N-di-4-methoxy phenyl amino)-9,9'-spirobifluorene (Spiro-OMeTAD) as hole- transporting layers were fabricated and characterized for optimizing with tuning the photovoltaic performance, optical properties, and microstructure. Introducing of metal phthalocyanine into the hole-transporting layer improved the photovoltaic properties including carrier diffusion with increase of carrier mobility, optical absorption, and the perovskite crystal growth. The metal phthalocyanines had the effect of promoting optically induced carrier generation and improvement of the charge transport with suppression of carrier recombination as electron blocking layers on the photovoltaic mechanism. The energy diagram and photovoltaic mechanism are discussed by the experimental results.
Databáze: OpenAIRE