Accounts of Materials Research, Год журнала: 2025, Номер unknown
Опубликована: Март 3, 2025
Язык: Английский
Advanced Functional Materials, Год журнала: 2023, Номер 34(10)
Опубликована: Ноя. 23, 2023
Abstract For the new display technology based on quantum dots (QDs), achieving high‐precision red, green, and blue pixel arrays has always been a research focus in pursuit of high‐quality vivid image displays. However, problems such as material stability process environment make it difficult to guarantee quality patterns. The optical patterning represented by direct photolithography is considered highly promising method for ultrafine patterns at submicron level. This prepares patterned dot‐polymer films through light‐induced chemical changes. paper reviews progress focused QD‐polymer materials presents recent advances processes monochromatic/multicolor light patterning. article classifies QD‐polymers into three categories combining QDs with polymers different ways, including polymer‐coated QDs, QD ligands, photocrosslinkers QDs. Their synthesis schemes, functional features, challenges are also presented. In addition, scheme remove photomask during lithography using lasers field modulation proposed. It aims provide readers researchers some generalized information improvement ideas. can further advance development QD‐polymers.
Язык: Английский
Процитировано
16
Advanced Functional Materials, Год журнала: 2023, Номер 34(17)
Опубликована: Дек. 31, 2023
Abstract Electrochromic (EC) technology is regarded as one of the most promising candidates for next‐generation reflective displays, owing to its advantages outstanding color adjustability, low energy consumption, vivid color, and flexibility, etc. However, current EC displays are seriously restricted by complicated expensive patterned methods. Herein, a facile low‐cost route developed achieve which fabricated based on combination an easily‐obtained material poly(3,4‐ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) efficient photo‐crosslinked additive (2,4‐hexadiyne‐1,6‐diol, HDDO). The micrometer‐scale patterns (<50 µm) can be achieved in situ process. As‐prepared devices show great performances containing fast response (<0.5 s), good reversibility (>10 000 cycles) high coloration efficiency (274.75 cm 2 C −1 ). More importantly, applications logo, QR code, price tag demonstrated successfully. Overall, exploration suggests efficient, low‐cost, method produce with performance, undoubtedly promote further development application displays.
Язык: Английский
Процитировано
14
Korean Journal of Chemical Engineering, Год журнала: 2024, Номер 41(13), С. 3501 - 3515
Опубликована: Май 10, 2024
Язык: Английский
Процитировано
6
ACS Nano, Год журнала: 2024, Номер 18(24), С. 15915 - 15924
Опубликована: Июнь 4, 2024
Considering the increasing demand for high-resolution light-emitting diodes (LEDs), it is important that direct fine patterning technologies LEDs be developed, especially quantum-dot (QLEDs). Traditionally, of QLEDs relies on resin-based photolithography techniques, requiring multiple steps and causing performance deterioration. Nondestructive may provide an easy stepwise method to achieve fine-pixelated units in QLEDs. In this study, two isomeric tridentate cross-linkers (X8/X9) are presented can blended into hole transport layer (HTL) emissive (EML) Because their photosensitivity, situ cross-linking process efficiently triggered by ultraviolet irradiation, affording high solvent resistance nondestructive layers. Red using cross-linked HTL demonstrate impressive external quantum efficiency up 22.45%. Through lithographic enabled X9, line patterns EML films exhibit widths as narrow 2 4 μm, respectively. Leveraging patterned EML, we show successful fabrication pixelated QLED devices with area size 3 × mm2, alongside production dual-color devices. These findings showcase promising potential facilitated engineered cost-effective displays.
Язык: Английский
Процитировано
5
Small, Год журнала: 2024, Номер 20(46)
Опубликована: Авг. 16, 2024
Abstract With the advent of Internet Things (IoTs) and wearable devices, manufacturing requirements have shifted toward miniaturization, flexibility, environmentalization, customization. Inkjet printing, as a non‐contact picoliter‐level droplet printing technology, can achieve material deposition at microscopic level, helping to high resolution precision patterned design. Meanwhile, inkjet has advantages simple process, efficiency, mask‐free digital direct pattern deposition, is gradually emerging promising technology meet such new requirements. However, there long way go in constructing functional materials devices due uncommercialized ink materials, complicated film‐forming geometrically/functionally mismatched interface, limiting film quality device applications. Herein, recent developments working mechanisms, systems, ejection flight drying well multifunctional intelligence applications including optics, electronics, sensors, energy storage conversion reviewed. Finally, it also highlight some critical challenges research opportunities. The review anticipated provide systematic comprehension valuable insights for thereby facilitating advancement their
Язык: Английский
Процитировано
5
Small, Год журнала: 2023, Номер 20(4)
Опубликована: Авг. 23, 2023
Abstract Quantum‐dot light‐emitting diodes (QD‐LEDs) have gained attention as potential display technologies. However, the solvents used to dissolve a polymeric hole transport layer (HTL) are hazardous both humans and environment. Additionally, intermixing HTL QD layers presents significant challenge when fabricating inverted QD‐LEDs. Here, green solvent selection procedure achieve good device performance environmental safety in QD‐LEDs is established. This utilizes Hansen solubility parameters surface roughness identify set of that do not lower by avoiding interlayer mixing or rough interface. The CHEM21 guide screen for environmentally solvents. Finally, cyclopentanone (CPO) selected optimal from among 16 candidates. Using CPO improves maximum luminescence ≈1.6 times current efficiency ≈12.6 times, compared conventional devices using chlorobenzene. Solvent critical fabrication high‐performance QD‐LEDs, particularly large panels require n‐type oxide thin‐film transistors.
Язык: Английский
Процитировано
10
Materials Chemistry Frontiers, Год журнала: 2023, Номер 7(23), С. 6130 - 6140
Опубликована: Янв. 1, 2023
To avoid the interlayer erosion challenge in IJP process and direct patterning of QD emissive layer (EML), cross-linking strategies have been introduced to construct solvent-resistant films (hole transport layers or EMLs) upon exposure heat light.
Язык: Английский
Процитировано
9
Nano Materials Science, Год журнала: 2024, Номер unknown
Опубликована: Апрель 1, 2024
The preparation of red, green, and blue quantum dot (QD) pixelated arrays with high precision, resolution, brightness poses a significant challenge on the development advanced micro-displays for virtual, augmented, mixed reality applications. Alongside controlled synthesis high-performance QDs, reliable QD patterning technology is crucial in overcoming this challenge. Among various methods available, photolithography-based technologies show great potentials producing ultra-fine patterns at micron scale. This review article presents recent advancements field using photolithography techniques explores their applications micro-display technology. Firstly, we discuss through employing photoresist (PR), which falls into two categories: PR-assisted QDPR. Subsequently, direct based photo-induced crosslinking photosensitive groups ligand cleavage mechanisms are thoroughly reviewed. Meanwhile, assess performance fabricated these integration light emitting diode display devices as well color conversion-based micro devices. Lastly, summarize most developments outline future prospects.
Язык: Английский
Процитировано
3
Inorganic Chemistry Communications, Год журнала: 2024, Номер unknown, С. 113232 - 113232
Опубликована: Сен. 1, 2024
Язык: Английский
Процитировано
3
Light Science & Applications, Год журнала: 2024, Номер 13(1)
Опубликована: Сен. 26, 2024
Язык: Английский
Процитировано
3