Royal Society of Chemistry

Figure 1.26

Schematic structure of perovskite solar cell consisting of TiO2 helices and HC(NH2)2PbI3 perovskite. The helical TiO2 is defined by the helix pitch (p), the radius of the helix (r) and the diameter of the helical cylinder (d). Cross sectional SEM images of three different TiO2 helices, helix-1, helix-2 and helix-3, grown on silicon wafers. Reproduced from ref. 38 with permission from the Royal Society of Chemistry.

Schematic structure of perovskite solar cell consisting of TiO₂ helices and HC(NH₂)₂PbI₃ perovskite. The helical TiO₂ is defined by the helix pitch (p), the radius of the helix (r) and the diameter of the helical cylinder (d). Cross sectional SEM images of three different TiO₂ helices, helix-1, helix-2 and helix-3, grown on silicon wafers. Reproduced from ref. 38 with permission from the Royal Society of Chemistry.

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