Printed hole-conductor-free mesoscopic perovskite solar cells with excellent long-term stability using PEAI as an additive

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Abstract

Phenethylamine (PEA) was successfully introduced into hole-conductor-free, fully printable mesoscopic MAPbI3 perovskite solar cells (MPSCs) with a carbon electrode by mixing phenethylammonium iodide with MAPbI3 perovskite solution. PEA-MAPbI3 films show better pore filling into TiO2 scaffold that forms better contact, and induce longer exciton lifetime and higher quantum efficiency of photoinduced charge separation. As a result, the power conversion efficiency of PEA-MAPbI3 MPSCs is 37% higher than that of MAPbI3 MPSCs. And PEA-MAPbI3 MPSCs show excellent long-term stability that could keep 90% of origin power conversion efficiency for over 80 days in the air.

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Xu, C., Zhang, Z., Hu, Y., Sheng, Y., Jiang, P., Han, H., & Zhang, J. (2018). Printed hole-conductor-free mesoscopic perovskite solar cells with excellent long-term stability using PEAI as an additive. Journal of Energy Chemistry, 27(3), 764–768. https://doi.org/10.1016/j.jechem.2018.01.030

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