Fig. 4: Performance improvement of devices with the Cd(O,S,Se,Te) region. | Nature Communications

Fig. 4: Performance improvement of devices with the Cd(O,S,Se,Te) region.

From: 20%-efficient polycrystalline Cd(Se,Te) thin-film solar cells with compositional gradient near the front junction

Fig. 4

a–d The statistical distribution of the PV parameters (centre lines show the median, boxes show the upper and lower quartiles, and the whiskers show the full range; each black and red circle in the box and whisker plots presents the value of the J–V performances for one cell; cell number = 15) of (a) PCE, (b) VOC, (c) JSC and (d) FF for the control and target devices. e J–V and (f) EQE curves for the champion control and target devices.

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