摘要
Recently, researchers have focused on the design of highly efficient flexible perovskite solar cells(PVSCs),which enables the implementation of portable and roll-to-roll fabrication in large scale.Low-lying valence bands of Cu_2O and CuO match well with CH_3NH_3PbI_3 and minimize the energy loss when being used as HTMs in perovskite solar cells.Traditional methods for making Cu_2O film are electrodeposition, thermal oxidation, sputtering, and metal-organic chemical vapor deposition.These methods are complicated and costly, requiring advanced equipment.New approaches should be developed to reduce fabrication cost.Here, we demonstrate the colloidal Cu_2O Nanoparticles film from a simple and controllable room-temperature solution process for achieving high performance flexible PVSCs with good stability and reproducibility.The power conversion efficiency(PCE) can reaches a promising value of 14.1% with no obvious hysteresis.The all layers of the PSCs were fabricated at low temperature.
Recently, researchers have focused on the design of highly efficient flexible perovskite solar cells(PVSCs),which enables the implementation of portable and roll-to-roll fabrication in large scale.Low-lying valence bands of Cu_2O and CuO match well with CH_3NH_3PbI_3 and minimize the energy loss when being used as HTMs in perovskite solar cells.Traditional methods for making Cu_2O film are electrodeposition, thermal oxidation, sputtering, and metal-organic chemical vapor deposition.These methods are complicated and costly, requiring advanced equipment.New approaches should be developed to reduce fabrication cost.Here, we demonstrate the colloidal Cu_2O Nanoparticles film from a simple and controllable room-temperature solution process for achieving high performance flexible PVSCs with good stability and reproducibility.The power conversion efficiency(PCE) can reaches a promising value of 14.1% with no obvious hysteresis.The all layers of the PSCs were fabricated at low temperature.
引文
[1]S.Shao,F.Liu,J.Phys.Chem.C 2010,114,9161.
[2]K X.Yao,X M.Yin,J.Am.Chem.Soc 2010,132,17,6141.
[3]Benjamin D.Yuhas and Peidong Yang,J.Am.Chem.Soc.2009,131,3756–3761.