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Aluminum/MoO_3 anode thin films:an effective anode structure for high-performance flexible organic optoelectronics

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Journal of Semiconductors 2012年第1期33卷 37-40页

作者： Ding Lei Zhang Fanghui Ma Ying Zhang Maili School of Electrical and Information engineering shaanxi University of Science&Technology Xi'an 710021China shaanxi panel display engineering center Xi'an 710021China

We report Al/MoO3 thin film used as a complex anode in high-performance OLEDs. The unique efficacy of the device was found to result from the enhanced injection of holes into the commonly used hole-transporting molecules due to a large reduction in the interface dipole at the anode/organic interface. The superior optical charac-teristics are attributed to a strong cavity effect, Due to the ease of processing Al/MoO3 we successfully demonstrated large-area flexible OLEDs on plastic substrates with uniform emission.

关键词： organic lighting-emitting diodes flexible anode

Water-driven photoluminescence reversibility in CsPbBr_(3)/PDMSPUa composite

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Nano Research 2022年第7期15卷 6466-6476页

作者： Junhu Cai Chenhui Wang Xinpei Hu Yuanyuan Ye Lijuan Zhong Enguo Chen Yun Ye Sheng Xu Jie Sun Qun Yan Tailiang Guo National and Local United engineering Laboratory of Flat panel display Technology College of Physics and Information EngineeringFuzhou UniversityFuzhou 350108China

Strong ionic character endows all-inorganic perovskite nanocrystals(NCs)with particular optoelectronic features when interacting with common polar solvents,such as ***,the interaction mechanism of water affecting perovskite NCs is still lack of in-depth *** study systematically explores the roles of water on CsPbBr_(3) nanocrystals(CNCs)by finely controlling the polymer coating degree of polydimethylsiloxane-based polyurea(PDMS-PUa).Through this coating,the effect of water on CNCs is found to experience from“fluorescence quenching”owing to irreversible crystal decomposition towards“forward fluorescence reversibility”by crystal destruction and *** gradually enhanced coating,a phenomenon of“reverse fluorescence reversibility”is further observed in that water begins to passivate the CNCs’defect ***,“fluorescent balance”can be achieved with a thick enough coating,where water can hardly contact with the *** by the fluorescence reversible mechanism discovered,a new wearable intelligent sensing skin is demonstrated by using the CsPbBr_(3)/PDMS-PUa composite as raw *** water contact and humidity change can be perceived through photoluminescence(PL)intensity,corresponding to stimuli-responsive sensory nerves of human *** is expected that these findings will shed some new lights on perovskite NCs.

关键词： CsPbBr_(3) polydimethylsiloxane-based polyurea(PDMS-PUa) photoluminescence reversibility water and humidity sensing intelligent skin

Autostereoscopic 3D flat panel display using an LCD-pixel-associated parallax barrier

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Optoelectronics Letters 2014年第3期10卷 191-193页

作者：陈恩果郭太良 National & Local United engineering Laboratory of Flat panel display Technology Fuzhou University

This letter reports an autostereoscopic three-dimensional （3D） fiat panel display system employing a newly designed LCD-pixel-associated parallax barrier （LPB）. The battler＇s parameters can be conveniently determined by the LCD pixels and can help to greatly simplify the conventional design. The optical system of the proposed 3D display is built and simulated to verify the design. For further experimental demonstration, a 508-mm autostereoscopic 3D displayprototype is developed and it presents good stereoscopic images. Experimental results agree well wlth the simulation, which reveals a strong potential for 3D display applications.

关键词： Flat panel displays Geometrical optics Liquid crystal displays Optical systems Three dimensional

Research on High Discharge Efficiency in SMPDP

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Plasma Science and Technology 2010年第1期12卷 95-98页

作者：况亚伟 H.TOLNER 李青朱笛崔渊张雄 display center School of Electronic Science and Engineering Southeast University

The relationship between infrared light （IR） and vacuum ultraviolet （VUV） emission in shadow mask plasma display panels （SMPDP） at high xenon content and high voltage is investigated. The respective ratios of VIS/IR-823 am, VIS/IR-828 nm and of efficacy/VIS/IR-823 nm, efficacy/VIS/IR-823 nm are calculated to determine the behavior of the xenon excitation efficiency and the electron excitation efficiency as a function of the driving voltage and xenon content. It is found that the xenon excitation efficiency is almost independent of the driving voltage, and increases approximately linearly with the xenon content. The values for efficacy/VIS/IR-828 nm increase rapidly with the xenon content, but saturate at a xenon ratio of about 30% while, on the other hand, the efficacy/VIS/IR-823 nm values decrease continuously with the xenon content.

关键词： plasma display panel shadow mask plasma display panels high xenon lumi- nous efficacy discharge efficiency

Phase-only stereoscopic hologram calculation based on Gerchberg–Saxton iterative algorithm

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Chinese Physics B 2016年第9期25卷 69-73页

作者：夏心怡夏军 display center School of Electronic Science and EngineeringSoutheast University

A phase-only computer-generated holography（CGH） calculation method for stereoscopic holography is proposed in this *** two-dimensional（2D） perspective projection views of the three-dimensional（3D） object are generated by the computer graphics rendering *** on these views,a phase-only hologram is calculated by using the Gerchberg–Saxton（GS） iterative *** with the non-iterative algorithm in the conventional stereoscopic holography,the proposed method improves the holographic image quality,especially for the phase-only hologram encoded from the complex *** simulation and optical experiment results demonstrate that our proposed method can give higher quality reconstruction comparing with the traditional method.

关键词： phase retrieval computer-generated holograms holography

Temperature-controlled multisensory neuromorphic devices for artificial visual dynamic capture enhancement

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Nano Research 2023年第5期16卷 7661-7670页

作者： Gengxu Chen Xipeng Yu Changsong Gao Yan Dai Yanxue Hao Rengjian Yu Huipeng Chen Tailiang Guo National&Local United engineering Laboratory of Flat panel display Technology Institute of Optoelectronic DisplayCollege of Physics and Information EngineeringFuzhou UniversityFuzhou 350108China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350100China

Multi-sensory neuromorphic devices(MND)have broad potential in overcoming the structural bottleneck of von Neumann in the era of big ***,the current multisensory artificial neuromorphic system is mainly based on unitary nonvolatile memory or volatile synaptic devices without intrinsic thermal sensitivity,which limits the range of biological multisensory perception and the flexibility and computational efficiency of the neural morphological computing ***,a temperature-dependent memory/synaptic hybrid artificial neuromorphic device based on floating gate phototransistors(FGT)is *** CsPbBr_(3)/TiO_(2)core–shell nanocrystals(NCs)prepared by in-situ pre-protection low-temperature solvothermal method were used as the photosensitive *** device exhibits remarkable multi-level visual memory with a large memory window of 59.6 V at room ***,when the temperature varies from 20 to 120℃back and forth,the device can switch between nonvolatile memory and volatile synaptic device with reconfigurable and reversible behaviors,which contributes to the efficient visual/thermal fusion *** work expands the sensory range of multisensory devices and promotes the development of memory and neuromorphic devices based on organic field-effect transistors(OFET).

关键词： floating gate phototransistors perovskite nanocrystals temperature multisensory neuromorphic devices

Computational approaches for fast generation of digital 3D video holograms(Invited Paper)

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Chinese Optics Letters 2009年第12期7卷 1083-1091页

作者： Seung-Cheol Kim Eun-Soo Kim 3D display Research center Department of Electronic Engineering Kwangwoon University

Several approaches for fast generation of digital holograms of a three-dimensional （3D） object have been discussed. Among them, the novel look-up table （N-LUT） method is analyzed to dramatically reduce the number of pre-calculated fringe patterns required for computation of digital holograms of a 3D object by employing a new concept of principal fringe patterns, so that problems of computational complexity and huge memory size of the conventional ray-tracing and look-up table methods have been considerably alleviated. Meanwhile, as the 3D video images have a lot of temporally or spatially redundant data in their inter- and intra-frames, computation time of the 3D video holograms could be also reduced just by removing these redundant data. Thus, a couple of computational methods for generation of 3D video holograms by combined use of the N-LUT method and data compression algorithms are also presented and discussed. Some experimental results finally reveal that by using this approach a great reduction of computation time of 3D video holograms could be achieved.

关键词： LUT Computational approaches for fast generation of digital 3D video holograms CGH

Influencing Factors of Reheating Shrinkage Rate of Glass Substrate on LTPS Process

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Journal of Wuhan University of Technology(Materials Science) 2020年第4期35卷 682-685页

作者： WANG Weilai TIAN Yingliang WANG Wei LIU Yaru SUN Shibing LüFeng CHEN Xinxin Faculty of Materials and Manufacturing Beijing University of TechnologyBeijing 100124China National engineering Laboratoryfor Technology and Equipment on Flat panel display Glass Shijiazhuang 050000China

Different heating treatments with the variation of heating rates,holding temperatures and holding time were used to simulate the LTPS *** experimental results show that the reheating shrinkage rates of glass substrates are rarely changed with increasing the heating rate,but strongly enhanced by raising the holding temperature and time,which shows that the reheating shrinkage of glass is closely related to heat treatment and structural *** production process of glass is critical to the reheating shrinkage of glass.

关键词： low temperature ploy-silicon(LTPS) glass substrates reheating shrinkage rate structural relaxation

Flexible multi-level quasi-volatile memory based on organic vertical transistor

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Nano Research 2022年第1期15卷 386-394页

作者： Huihuang Yang Qian Yang Lihua He Xiaomin Wu Changsong Gao Xianghong Zhang Liuting Shan Huipeng Chen Tailiang Guo Institute of Optoelectronic display National&Local United Engineering Lab of Flat Panel Display TechnologyFuzhou UniversityFuzhou 350002China Fujian Science&Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350100China Zhicheng College Fuzhou UniversityFuzhou 350002China

Driven by important megatrends such as cloud computing,artificial intelligence,and the Internet of Things,as a device used to store programs and data in computing systems,memory is struggling to catch up with the explosive growth of data and bandwidth requirements in the ***,the storage wair between non-volatile memory and volatile memory retards the further improvement of modern memory computing ***,a quasi-volatile transistor memory based on organic polymer/perovskite quantum dot blend was fabricated using the vertical transistor *** to vertical structure and appropriate doping ratio of blend film,the quasi-volatile memory device displayed 1,560 times longer data retention time(>100 s)with respect to the dynamic random access memory and fast data programming speed(20 ps)in which was far more quickly than that of other organic non-volatile memories to fill the gap between volatile and non-volatile ***,the device retention characteristics could be further promoted under the photoelectric synergistic stimulation,which also provided the possibility to reduce electric writing ***,the quasi-volatile memory device showed good electrical performance under bending *** work provides a simple solution to fabricate multi-level quasi-volatile memory,which opens up a whole new avenue of"universal memory"and lays a solid foundation for low power and flexible random access memory devices.

关键词： vertical transistor organic transistor memory perovskite quantum dot quasi-volatile memory storage wall