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The power conversion efficiency reaches 5.84%! Antimony trisulfide solar cells set new records
Release time:
2023-11-10 19:00
The battery is manufactured by adding a special additive that can improve the low crystallinity and high resistivity of antimony trisulfide film. In addition to improving efficiency, the device also exhibits an open circuit voltage of 0.62V, a short circuit current density of 15.85mA/cm2, and a fill factor of 59.61%.
Antimony trisulfide (Sb2S3) is currently used in ammunition and fireworks. Ruby colored glass and plastic.
Researchers from Northwest University of Technology in China have developed a planar thin film solar cell based on antimony disulfide (Sb2S3), with a power conversion efficiency of 5.84%. As a comparison, the efficiency of most antimony trisulfide batteries developed so far is close to 4%.
So far, the low crystallinity and high resistivity of Sb2S3 thin film have affected the efficiency performance of the device, and this type of battery is far from commercial production. However, Sb2S3 has a good bandgap, ranging from 1.70 to 1.90eV, and has a significant light absorption coefficient. Scientists have manufactured their device by applying an additive called 4-Chloro3-nitrobenzosulfonylChloride (CSCl), which has been able to alleviate these problems.
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