Abstract
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.
Highlights
Fabrication and characterization of the photovoltaic and optical properties and microstructure of organic-inorganic hybrid solar cells containing the perovskite compound with mesoporous TiO2 as the electron-transporting layer and semi-conductive materials as the hole-transporting layer (HTL) was investigated [1,2,3]
The purpose of this study is to investigate effects of metal phthalocyanines with vanadyl phthalocyanine (VOPc) and tetrakis(tert-butyl)[bis(trihexylsiloxy)germanium phthalocyanine] (GePc) as hole-transporting materials (HTM) on the perovskite-based solar cell
Role of VOPc, VONc, and GePc doped into spiro-OMeTAD as the hole-transporting layers on the photovoltaic properties and carrier diffusion was characterized
Summary
Fabrication and characterization of the photovoltaic and optical properties and microstructure of organic-inorganic hybrid solar cells containing the perovskite compound with mesoporous TiO2 as the electron-transporting layer and semi-conductive materials as the hole-transporting layer (HTL) was investigated [1,2,3]. The perovskite based solar cell have a high performance of the photovoltaic and optical properties with open circuit voltage, short circuit current, fill factor with a high efficiency of conversion. The perovskite solar cells consist of titanium oxide as electron transporting layer, halogen halide CH3NH3PbI3 perovskite crystal in photoactive layer and 2,2',7,7'-tetrakis-(N,N-di-4-. The photovoltaic properties were based on exceed of carrier-injection from the perovskite compound as the active layer to TiO2 as the electron-transporting layer and Spiro-OMeTAD as the hole-transporting layer, and carrier-transporting behavior
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