Quantum dots (QDs) have shown great potential for next generation displays owing to their fascinating optoelectronic characteristics. In this work, we present a novel full-color display based on blue organic light emitting diodes (BOLEDs) and patterned red and green QD color conversion layers (CCLs). To enable efficient blue-to-green or blue-to-red photoconversion, micrometer-thick QD films with a uniform surface morphology are obtained by utilizing UV-induced polymerization. The uniform QD layers are directly inkjet printed on red and green color filters to further eliminate the residual blue emissions. Based on this QD-BOLED architecture, a 6.6-inch full-color display with 95% Broadcasting Service Television 2020 (BT.2020) color gamut and wide viewing-angles is successfully demonstrated. The inkjet printing method introduced in this work provides a cost-effective way to extend the applications of QDs for full-color displays.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c9nr09086j | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
High-Security Data Encryption Enabled by DNA Multi-Strand Solid-Phase Hybridization and Displacement in Inkjet-Printed Microarrays.
ACS Appl Mater Interfaces
January 2025
Biomanufacturing Center, Department of Mechanical Engineering, Tsinghua University, Beijing 100084, China.
Multicolor fluorescent encryption systems that respond to specific stimuli have drawn widespread attention to data storage and encryption due to their low cost and facile data access. However, existing encryption systems are limited by encryption materials, restricting their encryption depth. This study uses DNA molecules as encryption materials that offer exceptional specificity and encryption depth within sequences.
View Article and Find Full Text PDFSingle-step, conformal, and efficient assembly of ligand-exchanged quantum dots for optoelectronic devices an electric field.
Nanoscale
January 2025
Lawrence Livermore National Laboratory, 7000 East Ave, Livermore, CA 94550, USA.
Quantum dots (QDs) are promising materials for optoelectronic applications, but their widespread adoption requires controllable, selective, and scalable deposition methods. While traditional methods like spin coating and drop casting are suitable for small-scale deposition onto flat substrates, and ink-jet printing offers precision for small areas, these methods struggle with conformal deposition onto non-planar, large area substrates or selective deposition onto large area chips. Electrophoretic deposition (EPD) is an efficient and versatile technique capable of achieving conformal and selective area deposition over large areas, but its application to QD films has been limited.
View Article and Find Full Text PDFPolymeric hydrogel integrated paper-based potentiometric ion-sensing device for the determination of sodium ions in human urine.
Analyst
January 2025
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama, Kanagawa 223-8522, Japan.
A paper-based potentiometric sensor integrated with a polymeric hydrogel has been developed for sodium ion (Na) determination in human urine. The construction of an all-solid-state ion selective electrode (s-ISE) and an all-solid-state reference electrode (s-RE) on a photo paper substrate was achieved using an inkjet printing method. For s-ISE fabrication, carbon nanotubes (CNTs) and gold nanoparticles (AuNPs) were printed on the substrate as a nanocomposite solid contact.
View Article and Find Full Text PDFFringe Texture Driven Droplet Measurement End-to-End Network Based on Physics Aberrations Restoration of Coherence Scanning Interferometry.
Micromachines (Basel)
December 2024
State Key Laboratory of Intelligent Manufacturing Equipment and Technology, School of Mechanical Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China.
Accurate and efficient measurement of deposited droplets' volume is vital to achieve zero-defect manufacturing in inkjet printed organic light-emitting diode (OLED), but it remains a challenge due to droplets' featurelessness. In our work, coherence scanning interferometry (CSI) is utilized to measure the volume. However, the CSI redundant sampling and image degradation led by the sample's transparency decrease the efficiency and accuracy.
View Article and Find Full Text PDFPrint-Light-Synthesis of ruthenium oxide thin film electrodes for electrochemical sensing applications.
Bioelectrochemistry
January 2025
University of Bologna, Department of Industrial Chemistry "Toso Montanari", Center of Chemical Catalysis-C(3), Via Piero Gobetti 85, 40129 Bologna, Italy. Electronic address:
Print-Light-Synthesis (PLS) combines the inkjet printing of a ruthenium precursor ink with the simultaneous photo-induced generation of ruthenium oxide films. During PLS, inkjet-printing generates on conductive as well as insulating substrates micrometer-thin reaction volumes that contain with high precision defined precursor loadings. Upon direct UV light irradiation, the Ru precursor converts to RuO while all other ink components escape in the gas phase.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!