Using Pulsed-laser deposition to produce digital-alloy contact layers and characterize the Perovskite solar cell
Conference Year
January 2019
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.
Primary Faculty Mentor Name
Matthew White
Faculty/Staff Collaborators
Ben Isenhart (Undergraduate Collaborator), Olivia Sergiovanni (Undergraduate Collaborator), Ekraj Dahal(Graduate Collaborator)
Status
Undergraduate
Student College
College of Arts and Sciences
Second Student College
Grossman School of Business
Program/Major
Physics
Second Program/Major
Entrepreneurship
Primary Research Category
Engineering & Physical Sciences
Using Pulsed-laser deposition to produce digital-alloy contact layers and characterize the Perovskite solar cell
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.