Ligand-Free Processable Perovskite Semiconductor Ink.

Autor: Folgueras MC; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States.; California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States., Louisia S; Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.; Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States., Jin J; Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.; California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States., Gao M; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States., Du A; Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States., Fakra SC; Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States., Zhang R; California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States., Seeler F; BASF SE, Ludwigshafen am Rhein 67056, Germany., Schierle-Arndt K; California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States.; BASF SE, Ludwigshafen am Rhein 67056, Germany., Yang P; Department of Materials Science and Engineering, University of California, Berkeley, Berkeley, California 94720, United States.; Department of Chemistry, University of California, Berkeley, Berkeley, California 94720, United States.; California Research Alliance (CARA), BASF Corporation, Berkeley, California 94720, United States.; Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States.; Kavli Energy NanoScience Institute, Berkeley, California 94720, United States.
Jazyk: angličtina
Zdroj: Nano letters [Nano Lett] 2021 Oct 27; Vol. 21 (20), pp. 8856-8862. Date of Electronic Publication: 2021 Oct 06.
DOI: 10.1021/acs.nanolett.1c03308
Abstrakt: Traditional covalent semiconductors require complex processing methods for device fabrication due to their high cohesive energies. Here, we develop a stable, ligand-free perovskite semiconductor ink that can be used to make patterned semiconductor-based optoelectronics in one step. The perovskite ink is formed via the dissolution of crystals of vacancy-ordered double perovskite Cs 2 TeX 6 (X = Cl - , Br - , I - ) in polar aprotic solvents, leading to the stabilization of isolated [TeX 6 ] 2- octahedral anions and free Cs + cations without the presence of ligands. The stabilization of the fundamental perovskite ionic octahedral building blocks in solution creates multifunctional inks with the ability to reversibly transform between the liquid ink and the solid-state perovskite crystalline system in air within minutes. These easily processable inks can be patterned onto various materials via dropcasting, spraying or painting, and stamping, highlighting the crucial role of solvated octahedral complexes toward the rapid formation of phase-pure perovskite structures in ambient conditions.
Databáze: MEDLINE
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