Large area inkjet-printed metal halide perovskite LEDs enabled by gas flow assisted drying and crystallization. Issue 12 (1st March 2023)

• Record Type: Journal Article
• Authors: Schröder, Vincent R. F.; Fratzscher, Nicolas; Mathies, Florian; Nandayapa, Edgar R.; Hermerschmidt, Felix; Unger, Eva L.; List-Kratochvil, Emil J. W.
• Is Part Of: Nanoscale. Volume 15:Issue 12(2023)
• Page Start: 5649
• Page End: 5654
• Publication Date: 2023-03-01
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d3nr00565h
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : Large area metal halide perovskite LEDs were fabricated by inkjet printing. Homogeneous drying and crystallization was facilitated by a guided and optimized gas flow. Abstract : We demonstrate the upscaling of inkjet-printed metal halide perovskite light-emitting diodes. To achieve this, the drying process, critical for controlling the crystallization of the perovskite layer, was optimized with an airblade-like slit nozzle in a gas flow assisted vacuum drying step. This yields large, continuous perovskite layers in light-emitting diodes with an active area up to 1600 mm 2 .