Related Experiment Video
Updated: Mar 11, 2026

Close-Space Sublimation-Deposited Ultra-Thin CdSeTe/CdTe Solar Cells for Enhanced Short-Circuit Current Density and Photoluminescence
Published on: March 6, 2020
3D Lifetime Tomography Reveals How CdCl2 Improves Recombination Throughout CdTe Solar Cells
Edward S Barnard1,2, Benedikt Ursprung2, Eric Colegrove3
1Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA.
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 CdCl2 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.
More Related Videos
11:26Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
11:30Recombination Dynamics in Thin-film Photovoltaic Materials via Time-resolved Microwave Conductivity
Published on: March 6, 2017