Laser Direct Write Synthesis of Lead Halide Perovskites.
Lead halide perovskites are increasingly considered for applications beyond photovoltaics, for example, light emission and detection, where an ability to pattern and prototype microscale geometries can facilitate the incorporation of this class of materials into devices. Here we demonstrate laser direct write of lead halide perovskites, a remarkably simple procedure that takes advantage of the inverse dependence between perovskite solubility and temperature by using a laser to induce localized heating of an absorbing substrate. We demonstrate arbitrary pattern formation of crystalline CH3NH3PbBr3on a range of substrates and fabricate and characterize a microscale photodetector using this approach. This direct write methodology provides a path forward for the prototyping and production of perovskite-based devices.
Sandia National Laboratories , Albuquerque, New Mexico 87185, United States.
Stanley S
SS
Chou
Center for Integrated Nanotechnologies, Sandia National Laboratories , Albuquerque, New Mexico 87545, United States.
Brian S
BS
Swartzentruber
Department of Materials Science & Engineering, University of Connecticut , Storrs, Connecticut 06269, United States.
Matthew T
MT
Janish
Advanced Materials Laboratory, Sandia National Laboratories , Albuquerque, New Mexico 87106, United States.
Kristin C
KC
Meyer
Sandia National Laboratories , Albuquerque, New Mexico 87185, United States.
Laura B
LB
Biedermann
Department of Electrical and Computer Engineering, The University of New Mexico , Albuquerque, New Mexico 87131, United States.
Serdal
S
Okur
Sandia National Laboratories , Albuquerque, New Mexico 87185, United States.
D Bruce
DB
Burckel
Center for Integrated Nanotechnologies, Sandia National Laboratories , Albuquerque, New Mexico 87545, United States.|Department of Materials Science & Engineering, University of Connecticut , Storrs, Connecticut 06269, United States.
C Barry
CB
Carter
Advanced Materials Laboratory, Sandia National Laboratories , Albuquerque, New Mexico 87106, United States.|Department of Chemical and Biological Engineering, The University of New Mexico , Albuquerque, New Mexico 87131, United States.
Bryan
B
Kaehr