Query：
学者姓名：徐胜
Refining：
Year
Type
Indexed by
Source
Complex
Former Name
Co-
Language
Clean All
Abstract ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
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
Cite：
Copy from the list or Export to your reference management。
| 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 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The light source of traditional edge-lit backlight modules typically consists of LED bars which composed of multiple LED chips. However, the spacing between the chips can create distinct bright and dark spots (Hot Spot) on the input surface of the light guide plate (LGP), thereby affecting the optical performance of the backlight module. In this paper, we proposed an edge-lit backlight module with staggered light bars, incorporating a light propagation cavity design to enhance light receiving efficiency and eliminate Hot Spot. Firstly, we designed the structure of the staggered light bars and the light propagation cavity. Secondly, the advantages of the new backlight module design in eliminating Hot Spot were verified through TracePro simulations. The simulation results showed that the maximum irradiance of the backlight module reached 81,010 W/m(2), and the luminance uniformity peaked at 75.142 %. Compared to the traditional backlight modules, the light receiving efficiency was increased by 6.62 %, and the luminance uniformity was improved by 1.34 times, which effectively mitigated the Hot Spot. Finally, we discussed the impact of the improved backlight module in reducing the thickness of the LGP and decreasing the number of LED chips, achieved superior optical performance. This study demonstrates the significant advantages of the light propagation cavity in eliminating Hot Spot within backlight modules.
Keyword ：
Edge-lit backlight module Edge-lit backlight module Hot spot Hot spot LED light propagation cavity LED light propagation cavity Optical design Optical design Staggered dual light bars Staggered dual light bars
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Qiu, Yingyi , Ye, Yun , Xie, Hongxing et al. An LED light propagation cavity with staggered light bars for eliminating the Hot Spot [J]. | OPTICS COMMUNICATIONS , 2025 , 574 . |
| MLA | Qiu, Yingyi et al. "An LED light propagation cavity with staggered light bars for eliminating the Hot Spot" . | OPTICS COMMUNICATIONS 574 (2025) . |
| APA | Qiu, Yingyi , Ye, Yun , Xie, Hongxing , Chen, Peihui , Liu, Kuanhuang , Chen, Enguo et al. An LED light propagation cavity with staggered light bars for eliminating the Hot Spot . | OPTICS COMMUNICATIONS , 2025 , 574 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Single image super-resolution (SISR) is an emerging application in medical imaging, as high-quality images need to be obtained with limited radiation dose, such as low-dose computed tomography and low-field magnetic resonance imaging. However, a certain amount of noise and artifacts are frequently present in medical images due to the constraints of imaging equipment and the surrounding environment. This can cause structural distortion and blurring of details in the resulting medical images. This research proposes a dual-domain residual convolutional neural network (DDRN) based super-resolution reconstruction technique for medical images. Firstly, shallow feature extraction is performed on the low-resolution images through convolutional networks. Secondly, a newly designed spatial domain residual block (SDRB) is employed to alleviate gradient vanishing issues while enhancing feature reuse, thereby facilitating the recovery of edge details. Additionally, a coordinate attention (CA) module is incorporated to capture both channel-wise and long-range spatial correlations. By assigning adaptive weights to different channels and capturing global spatial context, CA enables precise restoration of texture and structural details in medical images. Subsequently, parallel wavelet domain residual blocks (WDRB) are employed to capture multi-directional high-frequency information, facilitating the restoration of clear texture details. Lastly, by introducing gradient space loss for training guidance, the network is encouraged to focus more on restoring the geometric structure of the image and suppressing artifacts. Extensive experiments demonstrate the superior performance of DDRN. At a scaling factor of 4, the network achieves a peak signal-to-noise ratio (PSNR) of 37.28 dB and a structural similarity index (SSIM) of 0.9310 on the COVID-19 CT lung segmentation dataset, and a PSNR of 28.85 dB and an SSIM of 0.9012 on the MRBrain2018 dataset.
Keyword ：
Deep convolutional neural network Deep convolutional neural network Gradient space loss Gradient space loss Medical image super-resolution Medical image super-resolution Residual blocks Residual blocks
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Chen, Peihui , Zheng, Xingke , Qiu, Yingyi et al. Dual-domain residual CNN for medical image super-resolution with enhanced detail preservation and artifact suppression [J]. | SIGNAL IMAGE AND VIDEO PROCESSING , 2025 , 19 (6) . |
| MLA | Chen, Peihui et al. "Dual-domain residual CNN for medical image super-resolution with enhanced detail preservation and artifact suppression" . | SIGNAL IMAGE AND VIDEO PROCESSING 19 . 6 (2025) . |
| APA | Chen, Peihui , Zheng, Xingke , Qiu, Yingyi , Liu, Kuanhuang , Chen, Enguo , Xu, Sheng et al. Dual-domain residual CNN for medical image super-resolution with enhanced detail preservation and artifact suppression . | SIGNAL IMAGE AND VIDEO PROCESSING , 2025 , 19 (6) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Optoelectronic memristors have garnered significant attention for their critical applications in neuromorphic computing. The incorporation of materials with excellent absorption efficiency in the fabrication of photoelectric memristors can significantly enhance the image recognition capabilities. CdS nanorods (NRs) are semiconductors with strong UV light absorption that can effectively improve charge transport characteristics, reduce the loss caused by recombination at the crystal surface, and enhance the light absorption characteristics. In this work, an efficient hot injection method for controlling the growth of CdS NRs or nanosquares (NSs) by optimizing the proportion of dodecanethiol (DDT) is reported. Meanwhile, two-terminal optoelectronic memristors based on CdS NSs and CdS NRs are fabricated in which the conductance of the devices can be continuously modulated under electrical and optical stimulations of different widths/spacings/amplitudes. These advantages impart the device with exceptional electrical and optical synaptic functions including excitability, inhibition, paired-pulse facilitation, short-term/long-term plasticity, and memory-forgetting behavior. In addition, the enhancement of the image recognition efficiency of the device by CdS NRs is demonstrated in experiments with the recognition of the optical image "F". This work offers valuable insights for material selection in the development of future neuromorphic devices.
Keyword ：
artificial synapses artificial synapses Cadmium sulfide Cadmium sulfide dodecanethiol dodecanethiol nanorod nanorod optoelectronicmemristor optoelectronicmemristor
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhang, Liyan , Zhao, Wenxiao , Lin, Zexi et al. CdS Nanorods in Photoelectronic Memristors for Improved Target Recognition Efficiency [J]. | ACS APPLIED NANO MATERIALS , 2025 , 8 (6) : 2940-2951 . |
| MLA | Zhang, Liyan et al. "CdS Nanorods in Photoelectronic Memristors for Improved Target Recognition Efficiency" . | ACS APPLIED NANO MATERIALS 8 . 6 (2025) : 2940-2951 . |
| APA | Zhang, Liyan , Zhao, Wenxiao , Lin, Zexi , Wang, Ziyi , Zheng, Xingke , Chen, Enguo et al. CdS Nanorods in Photoelectronic Memristors for Improved Target Recognition Efficiency . | ACS APPLIED NANO MATERIALS , 2025 , 8 (6) , 2940-2951 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Multifunctional materials have attracted tremendous attention in intelligent and interactive devices. However, achieving multi-dimensional sensing capabilities with the same perovskite quantum dot (PQD) material is still in its infancy, with some considering it currently challenging and even unattainable. Drawing inspiration from neurons, a novel multifunctional CsPbBr3/PDMS nanosphere is devised to sense humidity, temperature, and pressure simultaneously with unique interactive responses. The carefully engineered polydimethylsiloxane (PDMS) shell enables the reversible activity of the core CsPbBr3, serving a dual role similar to dendrites in conveying and evaluating external stimuli with high sensitivity. Molecular dynamics analysis reveals that the PDMS shell with proper pore density enhances the conductivity in water and heat, imparting CsPbBr3 with sensitive but reversible properties. By tailoring the crosslinking density of the PDMS shell, nanospheres can surprisingly show customized sensitivity and reversible responses to different level of stimuli, achieving over 95% accuracy in multi-dimensional and wide-range sensing. The regular pressure-sensitive property, discovered for the first time, is attributed to the regular morphology of the nanosphere, the inherent low rigidity of the PDMS shell, and the uniform distribution of the CsPbBr3 core material in combination. This study breaks away from conventional design paradigms of perovskite core-shell materials by customizing the cross-linked density of the shell material. The reversible response mechanism of nanospheres with gradient shell density is deeply explored in response to environmental stimuli, which offers fresh insights into multi-dimensional sensing and interactive display applications.
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Cai, Junhu , Zhang, Xiang , Chen, Yu et al. Neuron-inspired CsPbBr3/PDMS nanospheres for multi-dimensional sensing and interactive displays [J]. | LIGHT-SCIENCE & APPLICATIONS , 2025 , 14 (1) . |
| MLA | Cai, Junhu et al. "Neuron-inspired CsPbBr3/PDMS nanospheres for multi-dimensional sensing and interactive displays" . | LIGHT-SCIENCE & APPLICATIONS 14 . 1 (2025) . |
| APA | Cai, Junhu , Zhang, Xiang , Chen, Yu , Lai, Wenzong , Ye, Yun , Xu, Sheng et al. Neuron-inspired CsPbBr3/PDMS nanospheres for multi-dimensional sensing and interactive displays . | LIGHT-SCIENCE & APPLICATIONS , 2025 , 14 (1) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
The processing of multicolor noisy images in visual neuromorphic devices requires selective absorption at specific wavelengths; however, it is difficult to achieve this because the spectral absorption range of the device is affected by the type of material. Surprisingly, the absorption range of perovskite materials can be adjusted by doping. Herein, a CdCl2 co-doped CsPbBr3 nanocrystal-based photosensitive synaptic transistor (PST) is reported. By decreasing the doping concentration, the response of the PST to short-wavelength light is gradually enhanced, and even weak light of 40 μW·cm-2 can be detected. Benefiting from the excellent color selectivity of the PST device, the device array is applied to feature extraction of target blue items and removal of red and green noise, which results in the recognition accuracy of 95% for the noisy MNIST data set. This work provides new ideas for the application of novel transistors integrating sensors and storage computing. © 2024 American Chemical Society.
Keyword ：
co-doping perovskite co-doping perovskite color selectivity color selectivity neuromorphic computing neuromorphic computing synaptic phototransistor synaptic phototransistor target object recognition target object recognition
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zhao, W. , Lin, Z. , Chen, H. et al. Perovskite-Doped Modulated Color-Selective Photosynaptic Transistors for Target Object Recognition [J]. | Nano Letters , 2024 , 24 (32) : 9937-9945 . |
| MLA | Zhao, W. et al. "Perovskite-Doped Modulated Color-Selective Photosynaptic Transistors for Target Object Recognition" . | Nano Letters 24 . 32 (2024) : 9937-9945 . |
| APA | Zhao, W. , Lin, Z. , Chen, H. , Xu, S. , Chen, E. , Guo, T. et al. Perovskite-Doped Modulated Color-Selective Photosynaptic Transistors for Target Object Recognition . | Nano Letters , 2024 , 24 (32) , 9937-9945 . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
Oxide of tungstate has consistently been pursued for use in optoelectronic applications. This study details the synthesis of AWO4 (A = Ba, Sr and Ca) using a high-temperature solid-state method. Additionally, theoretical calculations highlight its electronic structure, density of states, photoelectric properties, and vibrational modes. The x-ray diffraction of AWO4 (A = Ba, Sr and Ca) was meticulously introduced by the utilization of Rietveld for refinement. The refined lattice parameters substantially verified AWO4 (A = Ba, Sr and Ca) as a tetragonal system of scheelite with the spatial group of I41/a, and demonstrated significant alteration with the discrepancy in the radius of alkaline earth metal (A-site) ions. The electronic configuration and optical attributes of AWO4 (A = Ba, Sr and Ca) possessing scheelite-like structure were explored using density functional theory (DFT) based computational techniques. The theoretical blueprint was derived by optimizing the structure based on defects. The postulated optical bandgap energy confirms the occurrence of direct electronic transitions at Brillouin region G points. Calculations suggested the direct band gaps of BaWO4, SrWO4, and CaWO4 at 4.385, 3.123 and 3.813 eV. This was attributed to the energy levels produced by O and A-site atoms in the valence band, and W and O atoms in the conduction band. An examination of the polarization effect and uneven electronic charge distribution between [CaO8]6− and [WO4]2− clusters brought about by structural defects in AWO4 (A = Ba, Sr and Ca) was performed. Moreover, advanced investigations have been conducted on the elastic constants and mechanical durability of AWO4 (A = Ba, Sr and Ca). This research extensively calculated the elastic moduli of various matrices utilizing DFT. The critical Pugh’s ratio value was found to be >1.75, it indicated that AWO4 (A = Ba, Sr and Ca) has significant potential as a resilient material. © 2024 IOP Publishing Ltd.
Keyword ：
Barium compounds Barium compounds Calcium compounds Calcium compounds Computation theory Computation theory Density functional theory Density functional theory Electronic structure Electronic structure Energy gap Energy gap Optical properties Optical properties Rietveld refinement Rietveld refinement Strontium Strontium Strontium compounds Strontium compounds Tungstate minerals Tungstate minerals
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Zheng, Xingke , Du, Aochen , Ye, Yun et al. Computational and experimental investigations on structural, electronic and optical properties of scheelite compounds [J]. | Physica Scripta , 2024 , 99 (7) . |
| MLA | Zheng, Xingke et al. "Computational and experimental investigations on structural, electronic and optical properties of scheelite compounds" . | Physica Scripta 99 . 7 (2024) . |
| APA | Zheng, Xingke , Du, Aochen , Ye, Yun , Chen, Enguo , Xu, Sheng , Guo, Tailiang . Computational and experimental investigations on structural, electronic and optical properties of scheelite compounds . | Physica Scripta , 2024 , 99 (7) . |
| Export to | NoteExpress RIS BibTex |
Version ：
Abstract ：
[No abstract available]
Cite：
Copy from the list or Export to your reference management。
| GB/T 7714 | Du, A. , Zheng, X. , Yun, Y. et al. High power solid state lighting via transparent ceramics protecting quantum dots diffusion plates [未知]. |
| MLA | Du, A. et al. "High power solid state lighting via transparent ceramics protecting quantum dots diffusion plates" [未知]. |
| APA | Du, A. , Zheng, X. , Yun, Y. , Sheng, X. , Enguo, C. , Tailiang, G. . High power solid state lighting via transparent ceramics protecting quantum dots diffusion plates [未知]. |
| Export to | NoteExpress RIS BibTex |
Version ：
Export
| Results： |
Selected to |
| Format： |
