Hybrid Organic-Inorganic Perovskites Open a New Era for Low-Cost, High Efficiency Solar Cells

Figure 2

Perovskite synthesis methods and light absorption tuning. (a) Vapour deposition of CH₃NH₃PbI_3−xCl_x. Reprinted from [5]. Copyright: Nature Publishing Group. (b) Mixed cation perovskite ((5-AVA)_x(MA)_1−xPbI₃) prepared by drop-casting a solution of PbI₂, methylammonium (MA) iodide, and 5-ammoniumvaleric acid (5-AVA) iodide onto a double layer of TiO₂ and ZrO₂ through a carbon film. Reproduced with permission from [21]. Copyright: Science. (c) Solution processed CH₃NH₃PbI_3−xCl_x with interface engineering. Reproduced with permission from [9]. Copyright: Science. (d) Colorful CH₃NH₃Pb(I_1−xBr_x)₃ obtained by tuning the chemical composition. Reprinted from [11]. Copyright: the American Chemical Society.

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