Combinatorial inkjet printing for compositional tuning of metal-halide perovskite thin films

Näsström, Hampus; Shargaieva, Oleksandra; Becker, Pascal; Mathies, Florian; Žižak, Ivo; Schröder, Vincent; List‐Kratochvil, Emil J. W.; Unold, Thomas; Unger, Eva

doi:10.1039/d1ta08841f

Cited by 16 publications

(19 citation statements)

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“…The resolution of the printed image in drops per inch (dpi) is chosen in a way that the deposited droplets spread on the surface and merge on contact to form a closed continuous wet film with a thickness of multiple micrometers. [ 47 ] Starting with the first ink droplet, evaporation of the solvent is initiated, which has to be taken into account when choosing the printing speed. The drying process can result in inhomogeneous films (coffee ring effect) [ 48 ] and for metal halide perovskites is connected to the crystallization process.…”

Section: Resultsmentioning

confidence: 99%

Using Combinatorial Inkjet Printing for Synthesis and Deposition of Metal Halide Perovskites in Wavelength‐Selective Photodetectors

et al. 2021

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Metal halide perovskites have received great attention in recent years, predominantly due to the high performance of perovskite solar cells. The versatility of the material, which allows the tunability of the bandgap, has led to its use in light‐emitting diodes, photo, and X‐ray detectors, among other optoelectronic device applications. Specifically in photodetectors, the tunability of the bandgap allows fabrication of spectrally selective devices. Utilizing a combinatorial inkjet printing approach, multiple perovskite compositions absorbing at specific wavelengths in a single printing step are fabricated. The drop‐on‐demand capabilities of inkjet printing enable the deposition of inks in a precise ratio to produce specific perovskite compositions in the printed thin film. By controlling the halide ratio in the compositions, a mixed halide gradient ranging from pure MAPbI3 via MAPbBr3 to MAPbCl3 is produced. The tunability in the absorption onset from 410 to 790 nm is demonstrated, covering the whole visible spectrum, with a precision of 8 nm steps for MAPb(BrxCl1−x)3 compositions. From this range of mixed halide perovskites, photodetectors which show spectral selectivity corresponding to the measured absorption onset are demonstrated, paving the way for use in a printed visible light spectrometer without the need for a dispersion element.

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Section: Resultsmentioning

confidence: 99%

Using Combinatorial Inkjet Printing for Synthesis and Deposition of Metal Halide Perovskites in Wavelength‐Selective Photodetectors

et al. 2021

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“…The fragmentary approach was also adopted for inkjet printing of homogeneous compositions of CsPb(Br x I 1−x ) 3 . 64 Continuous-composition optimization was also used for the exploration of solar cell materials. For instance, a pulsed infrared semiconductor laser was adopted for thermal evaporation of perovskite precursor CH 3 NH 3 I/PbI 2 bilayer films, where the thickness of each layer was controlled to achieve gradient composition (Figure 4b).…”

Section: Solar Cellsmentioning

confidence: 99%

High-Throughput Synthesis of Thin Films for the Discovery of Energy Materials: A Perspective

2022

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Thin films are an integral part of many electronic and optoelectronic devices. They also provide an excellent platform for material characterization. Therefore, strategies for the fabrication of thin films are constantly developed and have significantly benefited from the advent of high-throughput synthesis (HTS) platforms. This perspective summarizes recent advances in HTS of thin films from experimentalists’ point of view. The work analyzes general strategies of HTS and then discusses their use in developing new energy materials for applications that rely on thin films, such as solar cells, light-emitting diodes, batteries, superconductors, and thermoelectrics. The perspective also summarizes some key challenges and opportunities in the HTS of thin films.

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“…Unger et al regulated the composition of lead halide perovskite by using perovskite precursors containing different halide components as inks. With the help of an intelligent algorithm, customized perovskite patterns were printed based on controlled operation of multiple nozzles …”

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confidence: 99%

“…The precise manipulation of droplets in inkjet printing is beneficial to control the growth of perovskite crystals. Recently, inkjet printed perovskite-based flexible devices have been applied in energy , and display ,− technologies.…”

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confidence: 99%

“…With the help of an intelligent algorithm, customized perovskite patterns were printed based on controlled operation of multiple nozzles. 66 In some cases, in addition to adding NPs in ink, other functional solutes are also needed in ink to achieve highperformance flexible optical devices. These functional solutes mainly include organic compounds 36 and polymers.…”

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Recent Advances in Printable Flexible Optical Devices: From Printing Technology and Optimization Strategies to Perspectives

Luo

Liu

Huang

et al. 2022

J. Phys. Chem. Lett.

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Recently, flexible optical devices have triggered booming developments in various research fields, including display equipment, sensors, energy conversion, and so on, due to their high compatibility, portability, and wearability. With the advantages of strong design ability, high precision, and high integration, printing technologies have been recognized as promising methods to realize flexible optical devices. In this Perspective, recent progress on printing strategies for fabricating flexible optical devices are introduced systematically. First, through adjusting the composition of inks, selecting flexible substrates, and controlling external stimulation, fabrication of flexible optical devices based on inkjet printing is illustrated. Then, flexible optical devices fabricated by template-induced printing, 3D printing, slot-die printing, and screen printing are summarized. Finally, prospects and future development directions based on printing technology for flexible optical devices are proposed.

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Combinatorial inkjet printing for compositional tuning of metal-halide perovskite thin films

Abstract: To accelerate the materials discovery and development process for a sustainable technology advancement it is imperative to explore and develop combined high-throughput material synthesis and analysis workflows. In this work,...

Cited by 16 publications

References 44 publications

Using Combinatorial Inkjet Printing for Synthesis and Deposition of Metal Halide Perovskites in Wavelength‐Selective Photodetectors

Using Combinatorial Inkjet Printing for Synthesis and Deposition of Metal Halide Perovskites in Wavelength‐Selective Photodetectors

High-Throughput Synthesis of Thin Films for the Discovery of Energy Materials: A Perspective

Recent Advances in Printable Flexible Optical Devices: From Printing Technology and Optimization Strategies to Perspectives

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