Japan's Toshiba has fabricated a perovskite solar cell mini-module with an energy conversion rate of 10.5%, which it claims is now the highest rate that has been reached throughout the world with a multi-cell mini-module.It reached a conversion rate of 10.5% for its 5X5cm film-based perovskite solar cell mini-modules by utilizing a new printing process. The company says its advancements will also drive cost reductions for flexible solar panels, particularly for use in building-integrated PV (BIPV) applications. It achieved its results under a research program supported by the New Energy and Industrial Technology Development Organization (NEDO).
The Tokyo-based group vowed to push forward with its R&D efforts to achieve efficiency rates that surpass those of crystalline silicon PV cells. It aims to eventually match baseload power generation costs in Japan by generating electricity for JPY 7 ($0.06)/kWh.
"Perovskite solar cells offer the promise of high conversion efficiency allied with reduced module costs, as they can be fabricated by printing," it said in an online statement. "Having demonstrated the possibility of increasing area and efficiency of a film-based module, and achieving a conversion efficiency of over 10%, Toshiba will now focus on increasing the module size and conversion efficiency, through measures including changing the composition of the perovskite material and by process improvements."
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