Interracial stabilization for inverted perovskite solar cells with long-term stability

2021

CHINESE SCI BULL   Impact Factor & Quartile

1001-6538

Perovskite solar cells (PSCs) commonly exhibit significant performance degradation due to ion migration through the top charge transport layer and ultimately metal electrode corrosion.Here,we demonstrate an interfacial management strategy using a boron chloride subphthalocyanine (Cl6SubPc)/fullerene electron-transport layer,which not only passivates the interfacial defects in the perovskite,but also suppresses halide diffusion as evidenced by multiple techniques,including visual element mapping by electron energy loss spectroscopy.As a result,we obtain inverted PSCs with an efficiency of 22.0％ (21.3％ certified),shelf life of 7000 h,T8o of 816 h under damp heat stress (compared to less than 20 h without Cl6SubPc),and initial performance retention of 98％ after 2000 h at 80 ℃C in inert environment,90％ after 2034 h of illumination and maximum power point tracking in ambient for encapsulated devices and 95％ after 1272 h outdoor testing ISOS-O-1,Our strategy and results pave a new way to move PSCs forward to their potential commercialization solidly.

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WanFang

kxtb-e202110009

1.Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG), Southern University of Science and Technology,Shenzhen 518055, China;Department of Physics, The University of Hong Kong, Hong Kong, China
2.Department of Materials Science and Engineering, Shenzhen Key Laboratory of Full Spectral Solar Electricity Generation (FSSEG), Southern University of Science and Technology,Shenzhen 518055, China
3.Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;School of Microelectronics, University of Science and Technology of China, Hefei 230026, China
4.State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Department of Physics, Peking University, Beijing 100871, China
5.Department of Physics, Southern University of Science and Technology, Shenzhen 518055, China
6.Department of Physics, The University of Hong Kong, Hong Kong, China
7.Department of Mechanical Engineering, The University of Hong Kong, Hong Kong, China
8.Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA;Department of Polymer Science and Engineering, University of Massachusetts, Amherst, MA 01003, USA

. Interracial stabilization for inverted perovskite solar cells with long-term stability[J]. CHINESE SCI BULL,2021,66(10):991-1002.

(2021).Interracial stabilization for inverted perovskite solar cells with long-term stability.CHINESE SCI BULL,66(10),991-1002.

"Interracial stabilization for inverted perovskite solar cells with long-term stability".CHINESE SCI BULL 66.10(2021):991-1002.