Royal Society of Chemistry

Figure 1.2

Instability of CH3NH3PbI3 in a liquid electrolyte with time. CH3NH3PbI3 was deposited on a nanocrystalline TiO2 surface by spin-coating a 40 wt% gamma-butyrolactone (GBL) solution containing CH3NH3I and PbI2. CH3NH3PbI3 starts to dissolve within 20 min, and dissolves completely in 30 min.

Instability of CH₃NH₃PbI₃ in a liquid electrolyte with time. CH₃NH₃PbI₃ was deposited on a nanocrystalline TiO₂ surface by spin-coating a 40 wt% gamma-butyrolactone (GBL) solution containing CH₃NH₃I and PbI₂. CH₃NH₃PbI₃ starts to dissolve within 20 min, and dissolves completely in 30 min.

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