Figure 1: Device architecture and energy diagram.
From: Efficient hole-blocking layer-free planar halide perovskite thin-film solar cells
(a) Schematic view of the perovskite solar cell configuration: Glass substrate, FTO front contact, CH3NH3PbI3-xClx film, spiro-OMeTAD HTL and Au back contact. (b) Energy band diagram of the FTO/CH3NH3PbI3-xClx/spiro-OMeTAD HTL/Au solar cell showing the separation and collection of photogenerated carriers.
