Fig. 1: Design of solar cells for shading-tolerant modules. | Nature Communications

Fig. 1: Design of solar cells for shading-tolerant modules.

From: In-cell bypass diodes for high-efficiency and shading-tolerant back contact silicon photovoltaic modules

Fig. 1: Design of solar cells for shading-tolerant modules.The alternative text for this image may have been generated using AI.

a Inspired by the mechanism of bypass diodes, the design of solar cells for shading-tolerant modules requires reverse conduction capability with spatially uniform distribution. b Designed solar cell structure scheme with built-in reverse conduction channels by introducing “n-c-Si/ETL/HTL" stacks near the p-n junction region of a back-contact (BC) solar cell, each gap region of the cell has such a stacked structure can serve as reverse conduction channel. c The dark state current density-voltage (J–V) characteristics of the proposed cell as obtained from experimental measurements and simulations. The dashed lines represent the results for the experimental cell samples, the solid line correspond to the simulated result. d Certified power conversion efficiency (PCE) of a cell with structure proposed in this work. Source data are provided as a Source Data file.

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