Photonics
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2023
·Vol. 10
·期 10
·1113
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IF 2.4
Junhu Cai,Xiaogang Chen,Wenyan Zhang,Longwen Yang,Zexi Lin,Wenxiao Zhao,Yun Ye,Sheng Xu,Tailiang Guo,Enguo Chen
Owing to their composition-tunable and narrow emissions and high photoluminescence quantum yield (PLQY), inorganic halide perovskite quantum dots (IPQDs) are a promising option for wide color gamut displays. However, their practical applications have been limited by their lattice structure instability and surface defect states. Herein, CsPbBr3:KBF4@SiO2with improved stability and optical properties is successfully synthesized with a two-step optimization of fluorine (F) anion doping and SiO2in situ coating. Compared with bromide (Br), higher electronegativity and a smaller radius of F lead to stronger binding energy with Pb2+. Also, F anions can occupy surface Br vacancies. Then, benefiting from the acidic environment provided by BF4−hydrolysis, tetraethyl orthosilicate (TEOS) can be more easily hydrolyzed on the CsPbBr3:KBF4surface to generate SiO2coating, thus further passivating lattice defects and improving environmental stability. Importantly, the PLQY of CsPbBr3:KBF4@SiO2achieves 85%, and the stability has been greatly improved compared with pure CsPbBr3. Finally, CsPbBr3:KBF4@SiO2/PDMS, CsPbI3/PDMS, and CsPbCl3/PDMS composites with narrow emissions are applied to replace traditional phosphors as color converters for direct-view light-emitting diode (LED) displays or liquid crystal display (LCD) backlights. The color gamut reaches 118.22% under the NTSC standard. Concerning the display field, it suggests likely applications in the future.Keywords:CsPbBr3;KBF4;SiO2;wide color gamut;liquid crystal displays;LED displays
研究领域:
材料科学
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光学工程
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高影响因子
ADVANCED MATERIALS
·
2023
·Vol. 35
·期 25
·2300615
·
IF 29.4
Shuxin Wei,Wei Lu,Huihui Shi,Shuangshuang Wu,Xiaoxia Le,Guangqiang Yin,Qingquan Liu,Tao Chen
Intelligent rewritable display systems have been long expected to reduce the heavy consumption of single-use or transient devices in the age of Internet-of-Things. However, it remains challenging to construct such systems with integrated functionality of remote control, rapid activation, multicolor and multimode display. Herein, by learning from the unique multilayer arrangement of chromatophores in chameleon skins, a promising kind of rewritable hydrogel multicolor systems is presented that can combine the merits of near-infrared (NIR) light-writing and projecting modes for on-demand information display. Specifically, the systems have typical multilayer layout consisting of poly(dimethylsiloxane) (PDMS)-sealed carbon nanotubes (CNTs) film as photothermal control unit and embedded fluorescent hydrogels as multicolor display unit, in which thermoresponsive hydrogel is constrained within non-responsive hydrogel. Such rational structure design results in the establishment of one promising display mechanism via the cascading “light trigger–heat generation–fluorescence output” process. On this basis, rapid and reversible hand-written display of arbitrary information is achieved within 5 s. Also, sustainable light-projecting display of predesigned multicolor patterns is demonstrated due to the multilayer design that ensures easy patterning of photothermal control or hydrogel display layer. This study brings functional-integrated merits for novel rewritable display systems and open new possibility to construct high-end products for information display/transmission.
研究领域:
材料科学
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光电技术
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纳米技术
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DOI
PubMed
高影响因子
Device
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2023
·
IF 0
Chang Gu,Yan Yan,Jiale He,Donglin Pu,Linsen Chen,Yu-Mo Zhang,Sean Xiao-An Zhang
Transparent non-emissive displays are ideal for augmented reality (AR) applications due to their ability to modulate ambient light as colored and transparent pixels. Electrochromic (EC) displays with transparent “ON” and “OFF” states can help enable such a display. However, unwanted image diffusion and signal crosstalk due to the imbalance between performance and the preparation process limit their practical application. In this work, we present a transparent and energy-efficient EC display prototype (4.2 inch, 16 × 16 pixels). We minimize the signal crosstalk problem by exploiting the confinement effect between EC pixels using the in situ photolithography of EC materials with the application of a photolithographic pixel definition layer and digital dispensing printing. The prototype has an optical modulation of ∼60%, a full-contrast lifetime tested beyond 20,000 cycles, an ultra-low power consumption (9.5 μW/cm 2 ), and the ability to provide spatiotemporally tunable information for potential AR applications.
研究领域:
材料科学
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光学工程
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Advanced Fiber Materials
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2025
·
IF 21.3
Peng Lisha,Sheng Hailiang,Wang Ting,Zeng Debo,Zhang Yue,Shi Jintao,Zhou Tao,Yang Jinglan,Gu Yifan,Qin Zong,Yang Bo-Ru,Deng Shaozhi
Textile displays have emerged as a promising technology for wearable electronics, yet maintaining excellent display performance and durability in daily use remains a challenge. We present a highly flexible yarn-based electrophoretic display fiber (EPDF) for wearable textile displays, fabricated using a low-temperature solution process. The EPDFs feature a coaxial structure with a diameter of less than 500 μm, enabling seamless integration into fabrics while maintaining textiles’ lightweight and breathable properties. The EPDFs exhibit stable black and white states under driving, with potential for thermal management applications. A dual encapsulation layer provides protection against sweat and sebum, enhancing durability for daily use. These features make EPDFs a promising candidate for next-generation wearable textile displays. Graphical
研究领域:
可穿戴电子
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柔性电子
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智能纺织品
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高影响因子
OPTICS EXPRESS
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2022
·Vol. 30
·期 12
·20241-20249
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IF 3.833
Hao Chen,Rui Wang,Wenqiang Ma,Huanhuan Zhang,Lin Yang
The large-scale and continuous production of CsPbBr3@PMMA composite film is realized by the in-situ ultrasonic spray coating method at room temperature. Through embedding CsPbBr3 nanocrystals into the hydrophobic polymer framework, the as-fabricated films (20 cm × 20 cm) exhibit uniform green emissions with a relatively high PLQYs of 76%, and could maintain 80% PL intensity after 3 months storage under ambient conditions. Assembling the green-emissive CsPbBr3@PMMA film and the red-emissive KSF@PMMA film with blue LED chip, a high-performance LCD is obtained, reaching a higher saturation with 126% and 94% color gamut of NTSC and Rec.2020, respectively. This work demonstrates that ultrasonic spray coating technique could be widely used in the large-scale fabrication of uniformly high-quality perovskite films for backlight application.
研究领域:
材料科学
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纳米技术
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DOI
PubMed
高影响因子
Advanced Optical Materials
·
2025
·
IF 7.2
Ke Chen,Yue Liu,Xiaokun Wang,Peiyu Liu,Chuyue Lei,Yuanyuan Zheng,Duo Li,Jingxia Wu,Bingjie Wang,Xuemei Sun,Peining Chen,Huisheng Peng
Textile displays—renowned for inherent flexibility and breathability—have emerged as a transformative platform for next-generation wearables and IoT integration. Despite substantial advancements, achieving dynamically tunable color display remains a critical challenge for effective information interaction. Here, this limitation is addressed through a woven architecture that integrates luminescent warp fibers with light-conversion conductive weft fibers, creating a three-primary-color electroluminescent pixel array where each unit contains precisely arranged red (R), green (G), and blue (B) interlaced subpixels. These subpixels demonstrate exceptional spectral purity with full-width at half-maximum values as low as 37 nm—comparable to quantum dot light-emitting diodes. The resultant pixel units achieve full-color display with a color gamut covering 122% of the sRGB standard, representing a 344% enhancement over conventional alternating current electroluminescence devices. Standard-like white light emission is achieved through precise control of RGB luminance ratios. A 5 × 5 cm 2 prototype textile display demonstrates multicolored text/image displaying via row scanning driving circuitry, while system-level integration with fiber biosensors enables health monitoring through color-coded heart rate visualization. This textile display is stable and durable to withstand 1,000 cycles of deformations like bending, stretching, twisting, and pressing. This work establishes a material-to-system framework for seamlessly embedding color displays into textiles.
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高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Sifan Zhuo,Shisheng Lin,Tao Pang,Lingwei Zeng,Zikang Yu,Yang Peng,Ran An,Zhehong Zhou,Guoyu Xi,Shaojun Wang,An Xie,Daqin Chen
Although blue laser-excited phosphor-in-glass films (PiGFs) have been extensively investigated for laser-driven display applications, their performance is still constrained due to a broad red emitting spectrum and thermal management challenges, etc. To overcome these limitations, this study develops a novel composite architecture – YAG: Ce transparent ceramic-CsPbBr 1.5 I 1.5 quantum dots (CPBI QDs) in glass film enhanced with h-BN (YAG: Ce TC-QiGF BN). YAG: Ce TC acts as a high thermal conductivity substrate and yellow light component, while QiGF enables to produce narrowband red emission. The h-BN particles are dispersed within QiGF, where a significant portion of them accumulate around the CPBI QDs powders. The inclusion of h-BN significantly improves both light extraction efficiency and thermal conductivity, leading to an increase of blue-light absorption efficiency from 57.74% to 69.26% and mitigation of heat accumulation induced by high-power laser irradiation. Among the three designed prototype projection display systems (YAG: Ce TC, YAG: Ce TC- CASN: Eu PiGF, and YAG: Ce TC-QiGF BN), the YAG: Ce TC-QiGF BN-based configuration demonstrates the most effective red-light enhancement and superior color rendering performance, particularly exhibiting the purest red color due to its narrowband emission feature. This innovative material holds considerable potential for the next-generation laser-driven displays.
研究领域:
材料科学
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光电子学
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纳米技术
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光子学
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热工学
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DOI
高影响因子
Advanced Optical Materials
·
2022
·Vol. 10
·期 12
·2200087
·
IF 10.05
Wenhao Bai,Tongtong Xuan,Haiyan Zhao,Shuchen Shi,Xiaoyu Zhang,Tianliang Zhou,Le Wang,Rong-Jun Xie
Group III–V semiconductor-based microscale light-emitting diode (micro-LED) displays are recognized as one of the most promising display technologies with superhigh brightness and resolution, strong contrast, and superlarge color gamut but currently suffer from low efficiency, low production yield, and high cost. Here, it is proposed to realize cost-effective and full-color micro-LED displays by using microscale perovskite quantum dot LEDs (micro-PeLEDs) as emitters. Bright and uniform red-, green-, and blue-emitting (RGB) micro-PeLED arrays with each pixel size as small as 45 µm are fabricated by in situ inkjet printing a perovskite quantum dot (PeQD) emissive layer in the structure of indium tin oxide/poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS)/poly(9-vinylcarbazole) (PVK)/sodium dodecyl sulfate (SDS)/PeQD/1,3,5-tris(1-phenyl-1 H -benzimidazol-2-yl)benzene (TPBi)/LiF/Al. These RGB micro-PeLED arrays display an external quantum efficiency of 0.832%, 0.419%, and 0.052% for red, green, and blue colors, a resolution of 210 PPI, and a wide color gamut (135% of the National Television Standards Committee standard). The authors further demonstrate flexible and full-color active-matrix micro-PeLED displays, which have potential applications in future ultrahigh-definition displays, light communication, and artificial intelligence.
研究领域:
显示技术
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材料科学
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纳米技术
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光电子学
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 44
·2307609
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IF 19
Siyu Zhang,Yan Zhu,Yifan Xia,Kangting Liu,Shuhan Li,Biao Yang,Mingyuan Li,Xinrong Zhi,Xin Wang
Anti-counterfeiting and visual optical information encryption/decryption technology have attracted widespread attention in the field of information security. Luminescent encryption technologies still face a huge challenge in external high voltage power supply, complex architecture, and expensive decryption equipment, which hinder their broad applications. Herein, a wearable integrated self-powered electroluminescent (EL) display device (W-ELD) that consists of MXene/Silicone-based triboelectric nanogenerator (MS-TENG) and EL device based on a shared MXene electrode is developed for patterned display and information encryption. The W-ELD features an all-in-one MXene electrode with excellent flexibility and high conductivity of 0.6 kΩ sq −1 , which is shared by both MS-TENG and EL devices. The MS-TENG demonstrates excellent output performances (output power of 0.9 Wm −2 ) and high stability and durability (10 4 cycles), which can directly light up the flexible patterned EL device. More importantly, when dripping conductive electrolyte solution, the W-ELD based on “中國”-patterned MXene electrode can precisely reveal the encryption information through self-powered EL emission for real-time visualized information interaction. Consequently, the all-in-one MXene electrode-based W-ELD that integrates both MS-TENG and EL device demonstrates exceptional patterned EL-based information encryption features, which offers a potential prospect in wearable self-powered optoelectronic devices, flexible displays, and encryption technology.
研究领域:
材料科学
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电子工程
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信息安全
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纳米技术
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DOI
高影响因子
HYDROMETALLURGY
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2019
·
IF 3.465
Deliang Luo,Nengwu Zhu,Yao Li,Jiaying Cui,Pingxiao Wu,Jieyuan Wang
The fragile indium supply inspired the development of recycling programs for end-of-life electronics products, especially liquid crystal displays (LCDs). LCDs consume 70% of the total indium resources used in the world today. In this study, a novel fusion of leaching and extraction processes was proposed to recycle indium from waste LCDs using the functionalized ionic liquid betainium bis(trifluoromethylsulfonyl)imide ([Hbet][Tf 2 N]). Under the optimum conditions of 10 mL 50% (v/v) ionic liquid/ascorbic acid, 20 g/L of solid/liquid ratio, and 90 °C operation temperature within 24 h, the indium leaching rate could reach as high as 99.75% and the indium extraction rate could be enriched by 98.63% in the ionic liquid phase after cooling and stratifying. Introducing ascorbic acid into the process in place of deionized water decreased the distribution rate of iron from 59.87% to 8.84% and promoted the separation of indium and iron. Indium in the ionic liquid phase could then be transferred into an indium-rich solution using oxalic acid and retrieve the ionic liquid. The characteristics of the regenerated ionic liquid remained relatively stable for reutilization. Therefore, the proposed fusion of leaching and extraction processes by [Hbet][Tf 2 N] provides an efficient alternative to recycle indium from waste LCDs.
研究领域:
材料科学
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环境科学
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DOI
高影响因子
ACS Applied Polymer Materials
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2025
·
IF 4.7
Mengmeng Kang,Xingmeng Su,Yuanchang Zhang,Yu Yao,Olayinka Oderinde,Guodong Fu
To address the growing demand for energy-efficient information storage and smart displays, we have developed a fast, self-healing, rewritable photochromic hydrogel based on visible light-responsive reverse photochromism. The developed hydrogel is engineered by integrating carboxyl-functionalized spiropyran into a poly(vinyl alcohol) (PVA) matrix, utilizing hydrogen bonding, crystallization of PVA chains, and B–O bonds. The reverse photochromic effect is significantly enhanced by the addition of sodium tetraborate, which is further augmented by the temperature increase. Additionally, a carboxyl-functionalized spirooxazine is used as a couple for UV tuning stimulation, so the self-healing reverse photochromic hydrogel could respond to both the visible and UV, impacting more diverse color variations as well as enhancing the controllability of the hydrogel. This approach promotes the development of reverse photochromic hydrogels, potentially expanding their applications in tunable and rewritable display technologies.
研究领域:
材料科学
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光学工程
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DOI
高影响因子
PROCESS SAFETY AND ENVIRONMENTAL PROTECTION
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2019
·
IF 4.384
Yao Li,Nengwu Zhu,Xiaorong Wei,Jiaying Cui,Pingxiao Wu,Ping Li,Jinhua Wu,Yimin Lin
Recovery of rare metal indium from waste LCD screens is important since its content is about 500 times of the original ore. Oxalic acid has excellent ability to leach indium from waste LCD screens, and how to achieve reactor scale operation is critical to promote indium recovery. In this study, a temperature-controlled aciduric stirred reactor (TCASR) was constructed to investigate the effects of operational conditions on the leaching efficiency of indium at reactor scale. Results showed that complete leaching was achieved in 10 min under the conditions of 0.2 mol/L oxalic acid, 300 g/L of ITO glass powder dosage, 90℃ and 500 rpm of stirring speed. Compared with the previous study, the consumption of oxalic acid decreased 3/5, ITO glass powder dosage increased by 6 times and reaction time decreased 7/9. Meanwhile, the duration of indium ion concentration was maintained for 20 min instead of decreasing immediately after reaching the peak, which was conducive to actual application. The process kinetics model illustrated that temperature played the most important role in affecting the reaction rate. The potential reason of longer indium ion concentration maintaining duration was preliminarily speculated as a faster leaching of indium than calcium result in less coprecipitation caused by calcium oxalate. Therefore, the TCASR is applicable for leaching of indium from waste LCD screens by oxalic acid due to the higher leaching efficiency, less reagents consumption and stronger processing ability.
研究领域:
环境科学
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冶金工程
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DOI
高影响因子
危险品化学品经营许可证（带存储）