The synthesis and characterisation of the highly stable perovskite nano crystals and their application to ink-jet printed colour conversion layers

Choi, Sol; Lee, Sang Yoon; Kim, Do Yeob; Park, Hyung Ki; Ko, Min Jae; Cho, Kwan Hyun; Choi, Jun

doi:10.1016/j.jiec.2020.02.005

Cited by 14 publications

(6 citation statements)

References 41 publications

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“…We observed the drop formation and fall shapes through a drop watcher. To be suitable inkjet inks, the viscosity and surface tension at 25 °C should be controlled in the range of 1–12 cP and 20–70 mN/m, respectively [21] , [22] . The viscosity values of the formulated PeNC inks were both within the range suitable for inkjet-printing.…”

Section: Resultsmentioning

confidence: 99%

“…Aluminum (Al) and silver (Ag) were obtained from TASCO. Indium-tin oxide (ITO) was purchased from GUNZE [6] , [21] .…”

Section: Methodsmentioning

confidence: 99%

“…Such devices provide excellent display performance and are suitable for industrial scale production. Their color reproducibility can be improved by adding QD CCLs on top of the blue OLED light source [6] , [21] . Thus, PeNCs which have solution processability and superior optical properties compared to conventional QD materials, were used as CCLs, and applied as PeNCs/OLED devices.…”

Section: Introductionmentioning

confidence: 99%

“…Compared to other patterning methods, inkjet-printing can remarkably reduce the number of processing steps and material consumption, while facilitating the production of large-area panels and eco-friendly production systems [22] , [23] . The wettability of the substrate and ink ejection properties of the prepared PeNC inks were also optimized and compared with the performance of existing results [6] , [21] .…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Investigation of highly luminescent inorganic perovskite nanocrystals synthesized using optimized ultrasonication method

Lee

Jang²,

Lee³

et al. 2022

Ultrasonics Sonochemistry

Self Cite

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Section: Resultsmentioning

confidence: 99%

“…Aluminum (Al) and silver (Ag) were obtained from TASCO. Indium-tin oxide (ITO) was purchased from GUNZE [6] , [21] .…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of highly luminescent inorganic perovskite nanocrystals synthesized using optimized ultrasonication method

Lee

Jang²,

Lee³

et al. 2022

Ultrasonics Sonochemistry

Self Cite

View full text Add to dashboard Cite

“…As the perovskite nanoparticles can maintain stability under the colloidal state, the inkjet printing technique shows great potential to realize the scale-up application of perovskite material [ 24 ]. Currently, many researchers reported the fabrication of perovskite materials via inkjet printing on composite substrates to fabricate electronic devices [ 25 , 26 , 27 ]. However, most studies focused on the study of photoluminescence, and only a handful of researchers reported PeLEDs with high-efficiency EL with the use of inkjet printing [ 28 , 29 , 30 ].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing

Jia

Wang

et al. 2022

Micromachines

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As an effective manufacturing technology, inkjet printing is very suitable for the fabrication of perovskite light-emitting diodes in next-generation displays. However, the unsatisfied efficiency of perovskite light-emitting diode created with the use of inkjet printing impedes its development for future application. Here, we report highly efficient PeLEDs using inkjet printing, with an external quantum efficiency of 7.9%, a current efficiency of 32.0 cd/A, and the highest luminance of 2465 cd/m2; these values are among the highest values for the current efficiency of inkjet-printed PeLED in the literature. The outstanding performance of our device is due to the coffee-ring-free and uniform perovskite nanocrystal layer on the PVK layer, resulting from vacuum post-treatment and using a suitable ink. Moreover, the surface roughness and thickness of the perovskite layer are effectively controlled by adjusting the spacing of printing dots. This study makes an insightful exploration of the use of inkjet printing in PeLED fabrication, which is one of the most promising ways for future industrial production of PeLEDs.

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Inkjet‐Printed, Flexible Full‐Color Photoluminescence‐Type Color Filters for Displays

et al. 2022

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Photoluminescence‐type color filters (PLCFs) are supposed to offer vivid colors and higher power efficiency for modern displays by removing absorption losses of the conventional color filters (CFs). Inkjet printing (IJP) is a versatile and low‐cost method to pattern color converters. But uniformity of the patterns is a big concern. Poor photoluminescence stability is also problematic, especially for the perovskite nanoparticles (PNPs) and quantum color converters. Herein, a porous polymer film (PF) is deployed as a template for IJP. The capillary effect of sub‐micron pores in the PF modifies the rheological process of ink spreading that eliminates the coffee‐ring effect and simultaneously provides photoluminescence (PL) stability. A high‐quality green PNP, and red quantum rod (QR) based CF array onto the PF is successfully printed. A liquid crystal display (LCD) deploying this full‐color PF CFs is demonstrated. Color gamut of the device could reach 96.9% of BT2020. The PF CFs show good PL stability for more than 218 days. Furthermore, the fabricated PF CFs possess great flexibility, and any chromaticity and brightness change after 10 000 times of folding were not observed. Thus, the proposed CF using the PF is highly suitable for flexible display and photonics components.

show abstract

The synthesis and characterisation of the highly stable perovskite nano crystals and their application to ink-jet printed colour conversion layers

Cited by 14 publications

References 41 publications

Investigation of highly luminescent inorganic perovskite nanocrystals synthesized using optimized ultrasonication method

Investigation of highly luminescent inorganic perovskite nanocrystals synthesized using optimized ultrasonication method

Fabrication of Highly Efficient Perovskite Nanocrystal Light-Emitting Diodes via Inkjet Printing

Inkjet‐Printed, Flexible Full‐Color Photoluminescence‐Type Color Filters for Displays

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