Figure 2: Features of the recycling process performed via selective dissolution. | Nature Communications

Figure 2: Features of the recycling process performed via selective dissolution.

From: Selective dissolution of halide perovskites as a step towards recycling solar cells

Figure 2

Plane-view FESEM images of (a) a new mesoporous TiO2 (mp-TiO2)/TCG substrate, (b) a CH3NH3PbI3 (MALI)-layer-deposited mp-TiO2/TCG substrate and (c) a cleaned mp-TiO2/TCG substrate after the selective dissolution process. For the cleaning of the MALI/mp-TiO2/TCG substrate, DMF was used. Scale bars, 1 μm. (d) Current density–voltage (J–V) curve of a PSC fabricated on a 10-times-recycled mp-TiO2/TCG substrate compared with that of a PSC fabricated on a new substrate.

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