Efficient and Air-Stable Mixed-Cation Lead Mixed-Halide Perovskite Solar Cells with n-Doped Organic Electron Extraction Layers

Zhiping Wang; David P McMeekin; Nobuya Sakai; Stephan van Reenen; Konrad Wojciechowski; Jay B Patel; Michael B Johnston; Henry J Snaith

doi:10.1002/adma.201604186

Efficient and Air-Stable Mixed-Cation Lead Mixed-Halide Perovskite Solar Cells with n-Doped Organic Electron Extraction Layers

Adv Mater. 2017 Feb;29(5). doi: 10.1002/adma.201604186. Epub 2016 Dec 1.

Authors

Zhiping Wang¹, David P McMeekin¹, Nobuya Sakai¹, Stephan van Reenen¹, Konrad Wojciechowski¹, Jay B Patel¹, Michael B Johnston¹, Henry J Snaith¹

Affiliation

¹ Clarendon Laboratory, Department of Physics, University of Oxford, Parks Road, Oxford, OX1 3PU, UK.

PMID: 27905138
DOI: 10.1002/adma.201604186

Abstract

Air-stable doping of the n-type fullerene layer in an n-i-p planar heterojunction perovskite device is capable of enhancing device efficiency and improving device stability. Employing a (HC(NH₂ )₂ )_0.83 Cs_0.17 Pb(I_0.6 Br_0.4 )₃ perovskite as the photoactive layer, glass-glass laminated devices are reported, which sustain 80% of their "post burn-in" efficiency over 3400 h under full sun illumination in ambient conditions.

Keywords: doping; long-term stability; mixed-cation mixed-halide; perovskite solar cells.