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学者姓名：徐胜
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Abstract ：
量子点(Quantum dots)凭借其尺寸可调控、卓越的光致发光量子产率(PLQY)以及宽光谱吸收等特性,展现出了卓越的光学性能,使其成为全彩广色域显示中LED色转换层的理想材料选择.特别是MAPbBr3钙钛矿量子点(PQDs),不仅制备工艺简单,并且还拥有优异的光电性能,因而被视为极具商业化潜力的材料.然而,MAPbBr3 PQDs在合成后其表面的配体极易脱落,导致表面缺陷态密度增加,这使得它们在水氧等环境因素下稳定性较差,最终导致其PLQY进一步降低.本研究提出了一种高效的一步合成MAPbBr3 PQDs策略:通过配体辅助再沉积技术(LARP),并创新性地使用2-己基癸酸(DA)配体替换传统的油酸(OA)配体,在室温条件下成功地合成了具有出色稳定性和高PLQY的MAPbBr3 PQDs.与单长碳链的OA配体相比,双短链的DA配体能与MAPbBr3 PQDs建立起更强的配位键.配体与PQDs之间的强相互作用有助于全面钝化晶格缺陷,从而减弱非辐射过程并提高材料的环境稳定性.因此,DA修饰后的MAPbBr3 PQDs不仅展现出高达 87.8%的PLQY,而且在水氧环境中也表现出更高的稳定性.室温环境下,使用DA配体修饰后的MAPbBr3 PQDs的PL峰值在放置半个月后仍保持在原来的68.3%,而OA配体修饰的PQDs表现出几乎完全的荧光猝灭.随后,将DA配体修饰后的绿色发射MAPbBr3 PQDs、红色发射CsPbBrI2 PQDs以及蓝色发射CsPbCl1.5Br1.5 PQDs置于聚苯乙烯(PS)环境中包覆固化成膜,替代传统荧光粉应用于显示器件发光二极管(LED)的色转换层,测试其色域范围达到了NTSC标准的137.09%.
Keyword ：
DA配体 DA配体 LED LED MAPbBr3 PQDs MAPbBr3 PQDs 广色域 广色域 稳定性 稳定性
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| GB/T 7714 | 李恭明 , 蔡俊虎 , 赖文宗 et al. 双短链配体调控提升MAPbBr3量子点性能及广色域LED显示应用 [J]. | 发光学报 , 2025 , 46 (1) : 1-11 . |
| MLA | 李恭明 et al. "双短链配体调控提升MAPbBr3量子点性能及广色域LED显示应用" . | 发光学报 46 . 1 (2025) : 1-11 . |
| APA | 李恭明 , 蔡俊虎 , 赖文宗 , 陈晓钢 , 查楠 , 叶芸 et al. 双短链配体调控提升MAPbBr3量子点性能及广色域LED显示应用 . | 发光学报 , 2025 , 46 (1) , 1-11 . |
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Abstract ：
全无机钙钛矿量子点因其高光致发光量子产率(Photoluminescence Quantum Yield,PLQY)、带隙可调、高色纯度等特性,在宽色域显示上的应用十分广泛,但其表面缺陷与晶格不稳定限制了其进一步应用.通过热注入法将ZnI2作为掺杂剂成功合成了 Zn2+掺杂的CsPbI3量子点(Zn:CsPbI3量子点).试验表明,Zn部分取代了 Pb,钙钛矿晶格逐渐收缩但晶型保持不变,提高了辐射衰减率,有效消除量子点缺陷态.Zn:CsPbI3量子点相较于原始CsPbI3量子点具有更好的相稳定性,PLQY也从56％提升至98％,同时PLQY在10天后仍可保持在80％以上.选用窄发射的Zn:CsPbI3,CsPbBr3与CsPbCl3量子点作为LED颜色转换材料,在国家电视标准委员会(National Television Standards Committee,NTSC)标准下,其色域达到了135.22％,证明了其在直视型LED显示屏或者液晶显示器(Liquid Crystal Display,LCD)背光领域具有潜在应用前景.
Keyword ：
Zn离子掺杂CsPbI3 Zn离子掺杂CsPbI3 材料科学 材料科学 热注入法 热注入法 离子掺杂 离子掺杂
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| GB/T 7714 | 查楠 , 蔡俊虎 , 叶芸 et al. Zn离子掺杂CsPbI3量子点及其色转换LED应用(封面文章·特邀) [J]. | 红外与激光工程 , 2025 , 54 (1) : 1-11 . |
| MLA | 查楠 et al. "Zn离子掺杂CsPbI3量子点及其色转换LED应用(封面文章·特邀)" . | 红外与激光工程 54 . 1 (2025) : 1-11 . |
| APA | 查楠 , 蔡俊虎 , 叶芸 , 徐胜 , 郭太良 , 陈恩果 . Zn离子掺杂CsPbI3量子点及其色转换LED应用(封面文章·特邀) . | 红外与激光工程 , 2025 , 54 (1) , 1-11 . |
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The pancake structure is the mainstream optical solution for virtual reality (VR) displays due to its compact, folded optical path. However, only a small portion of the light can pass through the pancake optical engine because the incident light has to be polarized and directed to the half mirror (HM) twice. In order to improve the optical efficiency, a new pancake optical engine is proposed for VR display, which employs a diffractive deflection film (DDF) with different focal lengths in three regions and two cholesteric liquid crystal (CLC) lenses that respond to circularly polarized light. The CLC lenses are modeled, and their polarization response characteristics are verified. The pancake system is simulated and optimized in terms of image quality and evaluated for optical efficiency, achieving 2.86 times the optical efficiency of the conventional pancake system, and the root mean square (RMS) radius of the system is controlled within 19 mu m, and the modulation transfer function (MTF) at the cut-off frequency is greater than 0.2. The results indicate that this structure has great potential in the VR display field.
Keyword ：
liquid crystal liquid crystal near-eye display near-eye display optical efficiency optical efficiency pancake pancake virtual reality virtual reality
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| GB/T 7714 | Xiao, Yuze , Zhang, Jiazhan , Ye, Yun et al. Tripling Optical Efficiency of Pancake Optics for Virtual Reality Displays [J]. | CRYSTALS , 2025 , 15 (1) . |
| MLA | Xiao, Yuze et al. "Tripling Optical Efficiency of Pancake Optics for Virtual Reality Displays" . | CRYSTALS 15 . 1 (2025) . |
| APA | Xiao, Yuze , Zhang, Jiazhan , Ye, Yun , Xu, Sheng , Yan, Qun , Guo, Tailiang et al. Tripling Optical Efficiency of Pancake Optics for Virtual Reality Displays . | CRYSTALS , 2025 , 15 (1) . |
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This study introduces a multi-layer grating device aimed at enhancing color stability in tunable structural color and optical encryption. The device ensures both transmission efficiency and stability within the microfluidic tuning system by incorporating transition and protective layers, along with an amplified grating period. Analytical results demonstrate that the combined effect of surface plasmon waves (SPW) between the multi-layer films generates the full color spectrum solely by altering the grating period. This grating period has been effectively expanded to approximate the intended color band. Compared to single-layer gratings, the period has increased by 238%, and for multi-layer gratings, it has increased by 147%. Nanometal gratings with periods of 400, 500, and 600 nm successfully produce primary colors, with respective transmittance rates of 75.8%, 75.9%, and 71.8%. Additionally, we propose an FDTD simulation method using two orthogonally polarized Gaussian light sources to model more scenarios. The dynamic structural color capabilities of these devices in the context of microfluidics hold promising potential for applications in optical encryption and could be easier to manufacture due to the larger grating period, making the process more cost-effective compared to existing devices.
Keyword ：
Microfluidic Microfluidic Nanostructure Nanostructure Structural color Structural color Surface plasmons Surface plasmons
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| GB/T 7714 | Chen, Gangjie , Zheng, Xingke , Ye, Yun et al. Microfluidics Implemented High Stability Tunable Structural Color Device for Display and Optical Encryption [J]. | PLASMONICS , 2025 , 20 (9) : 7619-7629 . |
| MLA | Chen, Gangjie et al. "Microfluidics Implemented High Stability Tunable Structural Color Device for Display and Optical Encryption" . | PLASMONICS 20 . 9 (2025) : 7619-7629 . |
| APA | Chen, Gangjie , Zheng, Xingke , Ye, Yun , Zhang, Tianning , Gao, Jiaqi , Xu, Sheng et al. Microfluidics Implemented High Stability Tunable Structural Color Device for Display and Optical Encryption . | PLASMONICS , 2025 , 20 (9) , 7619-7629 . |
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The technology of combining waveguides and collimation provides more optimization space for near-eye display systems. It not only enhances display performance (such as brightness, clarity, eye box range, etc.), but also enables a more compact and efficient design. This combination has become one of the most important technologies in VR and AR devices, continuously driving innovation in display technology. Experimental results show that 80% of the collimated light is concentrated within a±10° range, and the waveguide greatly increases the eyebox range while maintaining over 75% global uniformity. © 2025, John Wiley and Sons Inc. All rights reserved.
Keyword ：
Display devices Display devices Lenses Lenses Light emitting diodes Light emitting diodes Waveguides Waveguides
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| GB/T 7714 | Fang, Yifei , Wu, Jiahao , Xie, Jinlong et al. Design of a Micro-LED VR Display System Combining Light Collimation and Waveguide Technology [C] . 2025 : 1010-1012 . |
| MLA | Fang, Yifei et al. "Design of a Micro-LED VR Display System Combining Light Collimation and Waveguide Technology" . (2025) : 1010-1012 . |
| APA | Fang, Yifei , Wu, Jiahao , Xie, Jinlong , Xue, Yifan , Qiu, Jianbin , Yan, Qun et al. Design of a Micro-LED VR Display System Combining Light Collimation and Waveguide Technology . (2025) : 1010-1012 . |
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This paper introduces an LCD color modulation technology for liquid crystal displays (LCDs) based on the principle of temporal color mixing and the color misalignment method of backlight partitioning. The backlight area of the LCD is divided into multiple different partitions, and the principle of temporal color mixing is used within a single partition. Three single-primary sub frames of R/G/B are quickly displayed within one frame time, and a modulated white (W) subframe is displayed in the fourth sub frame, so that the human eye can perceive a clear and coherent image. © 2025, John Wiley and Sons Inc. All rights reserved.
Keyword ：
Alignment Alignment Color Color Liquid crystal displays Liquid crystal displays Liquid crystals Liquid crystals Mixing Mixing
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| GB/T 7714 | Gao, Hehuan , Lan, Weichen , Yan, Qun et al. Research on the Display Method for Color Misalignment in Liquid Crystal Display Backlight Partitioning [C] . 2025 : 1475-1477 . |
| MLA | Gao, Hehuan et al. "Research on the Display Method for Color Misalignment in Liquid Crystal Display Backlight Partitioning" . (2025) : 1475-1477 . |
| APA | Gao, Hehuan , Lan, Weichen , Yan, Qun , Guo, Tailiang , Chen, Enguo , Xu, Sheng . Research on the Display Method for Color Misalignment in Liquid Crystal Display Backlight Partitioning . (2025) : 1475-1477 . |
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| GB/T 7714 | Lan, Weichen , Zhu, Jiaye , Yan, Qun et al. Research on Liquid Crystal Partitioned Color Toning System Based on Mini-LED Backlight and Its Partition Scanning Methods [C] . 2025 : 1172 . |
| MLA | Lan, Weichen et al. "Research on Liquid Crystal Partitioned Color Toning System Based on Mini-LED Backlight and Its Partition Scanning Methods" . (2025) : 1172 . |
| APA | Lan, Weichen , Zhu, Jiaye , Yan, Qun , Guo, Tailiang , Chen, Enguo , Xu, Sheng . Research on Liquid Crystal Partitioned Color Toning System Based on Mini-LED Backlight and Its Partition Scanning Methods . (2025) : 1172 . |
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Aiming at the problem that the new zonal color mixing technology based on Mini-LED backlight needs to add a metal physical grille, this paper designs a new structure of optical cavity without metal grille. Through the simulation analysis, the optical cavity structure compared with the structure without concentrator cup luminescence efficiency increased by 13.25%, which can better improve the light efficiency. © 2025, John Wiley and Sons Inc. All rights reserved.
Keyword ：
Doors Doors Efficiency Efficiency Light emitting diodes Light emitting diodes Luminescence Luminescence Numerical models Numerical models Windows Windows
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| GB/T 7714 | Zhu, Jiaye , Lan, Weichen , Shi, Yichen et al. A Study on a High Luminous Efficiency Backlight Zone Concentration Structure for Mini-LED [C] . 2025 : 1632-1633 . |
| MLA | Zhu, Jiaye et al. "A Study on a High Luminous Efficiency Backlight Zone Concentration Structure for Mini-LED" . (2025) : 1632-1633 . |
| APA | Zhu, Jiaye , Lan, Weichen , Shi, Yichen , Xu, Sheng , Guo, Tailiang , Yan, Qun . A Study on a High Luminous Efficiency Backlight Zone Concentration Structure for Mini-LED . (2025) : 1632-1633 . |
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Cadmium sulfide (CdS) nanocrystals with diverse morphologies are extensively utilized in various fields. For example, CdS nanorods are widely used in photocatalysis and photodetectors due to their high efficiency in photogenerated carrier separation. However, existing methods for synthesizing CdS nanorods typically require high temperatures and pressures, which limit the application of this material. In this work, an efficient hot injection procedure to control about growth in Cadmium sulfide nanorods by optimizing the proportion of dodecanethiol is reported, demonstrating the effective control of CdS nanorods growth by dodecanethiol. The maximum degradation efficiency of CdS nanorods applied to photodegradation of Rhodamine B (RhB) can reach 96%, indicating that the synthesized CdS nanorods have excellent photocatalytic properties. It is attributed to their broad absorption within the visible spectrum, which results in excellent light harvesting. And their one-dimensional structure facilitates carrier separation. Dodecanethiol act as a selective role within morphology of the CdS nanomaterials, which is anticipated to be utilized in the creation of other sulfides with different morphologies. © 2025 SPIE.
Keyword ：
Laser beams Laser beams Nanoclay Nanoclay Nanocrystals Nanocrystals Nanorods Nanorods Photocatalysis Photocatalysis Photodegradation Photodegradation Photodetectors Photodetectors Photonics Photonics Photons Photons Rhodamine B Rhodamine B
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| GB/T 7714 | Zhang, Liyan , Zhao, Wenxiao , Ye, Yun et al. The rapid synthesis of CdS nanorods by optimizing the dodecanethiol proportion for photocatalysis [C] . 2025 . |
| MLA | Zhang, Liyan et al. "The rapid synthesis of CdS nanorods by optimizing the dodecanethiol proportion for photocatalysis" . (2025) . |
| APA | Zhang, Liyan , Zhao, Wenxiao , Ye, Yun , Lin, Zexi , Wang, Ziyi , Zheng, Xingke et al. The rapid synthesis of CdS nanorods by optimizing the dodecanethiol proportion for photocatalysis . (2025) . |
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Quantum dots(QDs)exhibit excellent optical properties with their size tunability,excellent photoluminescence quantum yield(PLQY),and broad spectral absorption,making them an ideal material choice for full-col- or,wide-gamut LED color conversion layers. In particular,MAPbBr3 quantum dots(PQDs)are not only easy to prepare,but also possess excellent photovoltaic properties,and thus are considered to be a material with great potential for commercialization. However,the ligands on the surface of MAPbBr3 PQDs are highly susceptible to detachment after their synthesis,leading to an increase in the density of surface defect states,which makes them less stable under environmental factors such as water-oxygen and temperature,thus further degrading the PLQY. In this study,we propose an efficient one-step strategy for the synthesis of MAPbBr3 PQDs∶MAPbBr3 PQDs with excellent stability and high PLQY,which were successfully synthesized by ligand-assisted redeposition and the innovative use of 2-hex-yldecanoic acid(DA)ligand to replace the conventional oleic acid(OA)ligand at room temperature,and the double-short-chain DA ligand was able to establish a stronger coordination bond with the MAPbBr3 PQDs compared with that of the single-length carbon chain OA ligand. The strong interactions between the ligands and the PQDs contribute to the overall passivation of the lattice defects,thus mitigating the non-radiative recombination process and enhancing the environmental stability. As a result,the modified MAPbBr3 PQDs not only exhibited up to 87. 8% PLQY,but also showed higher stability in both water and oxygen environments. The PL peak of MAPbBr3 PQDs modified with DA ligands remained at 68. 3% of its original value after being left for half a month in a room temperature environment, whereas OA ligand-modified PQDs exhibited almost complete fluorescence burst. Subsequently,the DA ligand-modified green MAPbBr3 PQDs,red CsPbBrI2 PQDs,and blue CsPbCl1. 5Br1. 5 PQDs were coated and cured in a polystyrene(PS)environment to form a film,which can be used as a color conversion material instead of the traditional phosphors for the backlight of light-emitting diode(LED)displays. The color gamut is 137. 09% under NTSC standard. © 2025 Editorial Office of Chinese Optics. All rights reserved.
Keyword ：
Aspect ratio Aspect ratio Atomic emission spectroscopy Atomic emission spectroscopy Carbon Quantum Dots Carbon Quantum Dots Color Color Defect density Defect density Density (optical) Density (optical) Energy efficiency Energy efficiency Grain boundaries Grain boundaries Laser beams Laser beams Layered semiconductors Layered semiconductors Ligands Ligands Light sensitive materials Light sensitive materials Liquid crystals Liquid crystals Metamorphic rocks Metamorphic rocks Nanocrystallization Nanocrystallization Photoluminescence Photoluminescence Quantum yield Quantum yield
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| GB/T 7714 | Li, Gongming , Cai, Junhu , Lai, Wenzong et al. Performance Enhancement of MAPbBr3 Perovskite Quantum Dot for Wide Color Gamut LED via Double Short-chain Ligand Modification [J]. | Chinese Journal of Luminescence , 2025 , 46 (1) : 1-11 . |
| MLA | Li, Gongming et al. "Performance Enhancement of MAPbBr3 Perovskite Quantum Dot for Wide Color Gamut LED via Double Short-chain Ligand Modification" . | Chinese Journal of Luminescence 46 . 1 (2025) : 1-11 . |
| APA | Li, Gongming , Cai, Junhu , Lai, Wenzong , Chen, Xiaogang , Zha, Nan , Ye, Yun et al. Performance Enhancement of MAPbBr3 Perovskite Quantum Dot for Wide Color Gamut LED via Double Short-chain Ligand Modification . | Chinese Journal of Luminescence , 2025 , 46 (1) , 1-11 . |
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