Engineering polycrystalline perovskite for low-cost pixelated X-ray imager.
Grant Program (CFDA)
Place of Performance
Los Angeles, California 90034-4261 United States
Single Zip Code
Chemelectronics was awarded Project Grant DESC0022471 worth $199,061 from the Office of Science in February 2022 with work to be completed primarily in Los Angeles California United States. The grant has a duration of 1 year and was awarded through assistance program 81.049 Office of Science Financial Assistance Program.
SBIR Phase I
Engineering Polycrystalline Perovskite for Low-Cost Pixelated X-Ray Imager
Chemelectronics LLC will team up with the University of California, Los Angeles to develop a low-cost solution processible polycrystalline all-inorganic perovskite CsPbBr3 integrated on silicon thin film transistor panel for pixelated X-ray imager. The project target is to demonstrate 10-100 keV x-ray energy range with detection sensitivity of >100 µC Gyair-1cm-2 at pixel size less than 100 micrometers. The proposed solution processible low-cost polycrystalline CsPbBr3 perovskite is inspired by their excellent carrier mobility and lifetime, as well as free of deep trap states. The demonstrated benefits of low-cost pixelated x-ray imager with polycrystalline CsPbBr3 perovskite include high resolution, sensitivity and stability. Furthermore, the use of low-cost polycrystalline CsPbBr3 perovskite materials and a solution-processed procedure will meet the cost target of < $0.5/cm3 for the x-ray active materials. During Phase I, the team will (1) identify the solution engineering process protocols for the low-cost polycrystalline CsPbBr3 perovskite and (2) carry out preliminary integration polycrystalline CsPbBr3 perovskite with silicon thin film transistor panel to characterize pixelated x-ray imager performance in sensitivity and operational stability. It is anticipated that multiple iterations will be required to optimize the engineering of polycrystalline CsPbBr3 perovskite to achieve high x-ray detection sensitivity. The engineering work will be carried out at Chemelectronics LLC, while the device integration and x-ray test will be done at UCLA.
Last Modified 3/14/22
Period of Performance
100.0% Federal Funding
0.0% Non-Federal Funding
Award ID FAIN
Award ID URI
892430 SC CHICAGO SERVICE CENTER
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