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thin-film solar cells

Heterojunction design for 26%-efficient copper bismuth oxide thin-film solar cell

Researchers in Bangladesh have simulated a solar cell based on a copper bismuth oxide material, used as an absorber, with n-type cadmium sulfide (CdS) utilized as a buffer layer. In the experiment, the device achieved an efficiency of 26.0%, an open-circuit voltage of 0.97 V, a short-circuit current density of 31.61 milliampere per square centimeter, and a fill factor of 84.58%.

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Perovskite-based solar window tech from NREL

NREL’s new solar window darkens in the heat of the sun, producing electricity via embedded perovskite film. The tech is based on formamidinium-based metal halide perovskite, an inherently thermochromic material exhibiting significant optical changes.

New molecular precursor for kesterite solar cells

Scientists in India have developed a new molecular precursor for applications in kesterite solar cells. They used the precursor to build a superstrate type solar cell with an efficiency that is purportedly among the highest ever recorded. They relied on a low-temperature process to manufacture the device.

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