Fig. 5. Characterization of NPI-based semi-transparent DSC. (a) Evolution of the average visible transmission (AVT) (measured between 380 and 740 nm), PCE and pictures of a semi-transparent NPI-based solar cell as a function of light exposure time (under standard irradiation conditions). (b) Bleaching curve (at 25 °C) registered at λmax of a complete semi-transparent NPI-based solar cell, with pictures of the cell before and after decoloration. (c) Evolution of the color of an NPI-based solar semi-transparent mini-module when exposed to natural light at 20 °C. Interval times between pictures (from left to right) of 30, 30 and 240 s cumulatively. Adapted with permission from ref. 21. Copyright 2020 Nature Publishing Group.
