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3D Lifetime Tomography Reveals How CdCl Improves Recombination Throughout CdTe Solar Cells. | LitMetric

AI Article Synopsis

  • Two-photon tomography is used to create 3D maps of carrier lifetimes in CdTe photovoltaic devices, uncovering subsurface dynamics.
  • Traditional optical methods can't access these details, but this technique shows how CdCl treatment improves solar cell performance.
  • The CdCl treatment reduces nonradiative recombination and boosts carrier lifetimes, especially around grain boundaries and the buried p-n junction.

Article Abstract

Using two-photon tomography, carrier lifetimes are mapped in polycrystalline CdTe photovoltaic devices. These 3D maps probe subsurface carrier dynamics that are inaccessible with traditional optical techniques. They reveal that CdCl treatment of CdTe solar cells suppresses nonradiative recombination and enhances carrier lifetimes throughout the film with substantial improvements particularly near subsurface grain boundaries and the critical buried p-n junction.

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Source
http://dx.doi.org/10.1002/adma.201603801DOI Listing

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