After finding a way to make Spiro-Toometad, a popular perovskiet solar cell hole transport layer, less susceptible to heat-induced crystallization, researchers from the Georgia Institute of Technology are now looking for partners to scale the technology for PV cells with large environment.
Researchers from the Georgia Institute of Technology (GIT) have developed a method to make hole transport layer material (HTL), Spiro-Toometad, often in perovskite solar cells, less susceptible to heat-induced crystallization.
With the help of vapor phase infiltration (VPI) embedded titanium oxide/hydroxide (TIX) in Spiro-Toometad, a typical organic HTL material, to make the film more resilient and in turn make more stable.
VPI is a deposition technique related to atomic layer deposit (ALD) that can form organic-anganic hybrid materials with unique properties. The researchers noted that the perovskiet layer in a PSC stack can tolerate temperatures of up to 120 ° C, but the Spiro-Toometad HTL can begin to crystallize after several heating cycles at only 70 C.
The new VPI method is reportedly obstructing this type of crystallization, resulting in devices that allegedly retained more than 80% of their original efficiency after a 200-hour stability test at 75 ° C. The result is double the efficiency of efficiency compared to non-fertilized Perseltroden Perrskiet.
“We are currently looking for partners to license this technology and scale up the process. The idea is that we can scale up this process to infiltrate panels, not only small area cells, ”said Juan Pablo Correa-Baena, Assistantial teacher Git, said PV Magazine.
The technology is now under patent review. A paper was published in 2023 describing research that is related to the patent, “Damp phase -infiltration improves the thermal stability of organic layers in solar cells of perovskiet“In ACS Energy Letters.
“We try to expand this and apply this type of process to other materials outside of solar cells. For example, any type of organic electronics would benefit from this process, “said Correa-Baena when he was asked about further research.
This content is protected by copyright and may not be reused. If you want to work with us and reuse part of our content, please contact: editors@pv-magazine.com.
