Engineers from the University of Michigan have developed a new algorithm capable of designing optical multilayer film structures for applications, including solar cells.

OptoGPT (Opto Generative Pretrained Transformer) harnesses the computer architecture underpinning ChatGPT to work backward from desired optical properties to the material structure that can provide them.

The algorithm produces designs for multilayer film structures, consisting of stacked thin layers of different materials, reportedly within 0.1 seconds. Well-designed multilayer structures can maximize light absorption in a solar cell, and can also optimize design in other optical component manufacturers, such as telescopes. On average, OptoGPT designs contain six fewer layers than previous models, according to its creators. This means that its designs are easier to manufacture.

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Source: PV Magazine

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