Using Pulsed-laser deposition to produce digital-alloy contact layers and characterize the Perovskite solar cell
Du, Bin
Du, Bin
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Abstract
In this work, we have used pulsed laser deposition (PLD) to produce digital alloy super lattices and gradients of zinc oxide (ZnO) with doped or isovalent-substituted (for band-gap tuning) analogues.Among the PV technologies that rely on oxide contact layers, we consider the organo-metal halide perovskite solar cell to be the most promising and highly dependent on the performance of the oxide layers.We have been able to gain full control of the film deposition parameters. The completed films were characterized optically and electronically to verify the doping efficiency and profile, as well as any band gap variation. By controlling the digital alloys at the nanoscale, we demonstrated their effectiveness as contact layers in perovskite solar cells, with corresponding performance improvement. We have a perovskite cell performance on a digital alloy ZnO contact layer in excess of 18% efficiency.
Description
1:00 PM
3:00pm-5:00pm
Undergraduate
3:00pm-5:00pm
Undergraduate
Date
2019-01-01