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. Author manuscript; available in PMC: 2015 Feb 1.
Published in final edited form as: Nat Mater. 2014 May 25;13(8):796–801. doi: 10.1038/nmat3984

Figure 4. Long-term stability assessment of unencapsulated devices with Au anodes.

Figure 4

a, Evolution of photovoltaic parameters of PbS-TBAI (black) and PbS-TBAI/PbS-EDT(red) devices. Open symbols represent the average values and solid symbols represent the values for the best-performing device. b, Device performance of a PbS-TBAI/PbS-EDT device certified by an accredited laboratory after 37 days of air-storage.