Extended Data Fig. 6: Characterization of recycled spiro-OMeTAD. | Nature

Extended Data Fig. 6: Characterization of recycled spiro-OMeTAD.

From: Aqueous-based recycling of perovskite photovoltaics

Extended Data Fig. 6

a, 1H-NMR spectra of recycled spiro-OMeTAD in DMSO-d6 with (top) or without (bottom) filtration to remove EVA. 1H-NMR spectra of recycled spiro-OMeTAD (b) and fresh spiro-OMeTAD (c) in DMSO-d6. d, 19F-NMR spectra of fresh (top) and recycled (bottom) spiro-OMeTAD in DMSO-d6. High-performance liquid chromatography spectra of fresh (e) and recycled (f) spiro-OMeTAD.

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