Northwestern Polytechnical University

Boost halide perovskite solar cells with BTTM: efficiency jumps to 24.71% (from 22.07%) and UV durability soars—over 90% retention after aging vs ~61% controls.

The cell was produced by including a special additive that improves the reduced crystallinity and high resistivity of the antimony trisulfide film. In addition to the improved performance, the device showed an open-circuit voltage of 0.62 V, a short-circuit existing thickness of 15.85 mA/cm2 and also a fill aspect of 59.61%.