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Large-area periodic lead halide perovskite nanostructures for lenticular printing laser displays

Science China Chemistry 2021年第4期64卷 629-635页

作者： Min Wang Haohao Li Chenghu Dai Ji Tang Baipeng Yin Hong Wang Jingwen Li Yuchen Wu Chuang Zhang Yong Sheng Zhao Key Laboratory of Photochemistry Beijing National Laboratory for Molecular SciencesInstitute of ChemistryChinese Academy of SciencesBeijing 100190China Key Laboratory of Bio-inspired Materials and Interfacial Science Technical Institute of Physics and ChemistryChinese Academy of SciencesBeijing 100190China University of Chinese Academy of Sciences Beijing 100049China

Lenticular printing technique provides a promising way to realize stereoscopic displays,especially,when microscopic optical structures are integrated into light-emitting materials/***,we fabricated large-area periodic structures with a spatial resolution at a wavelength scale from hybrid perovskite materials via a space-confined solution growth *** takes advantages of both high refractive index contrast and high luminescence brightness,which allows the optical modulation on not only the reflection of illumination,but also the light emission from hybrid *** distributed feedback within these periodic structures significantly improves the degree of polarization and directionality of laser actions while their threshold is also *** findings enable us to present a prototype of lenticular printing laser displays that vary emission colors at different view angles,which may find applications in creating high-resolution and high-contrast holographical images.

关键词： lead halide perovskite optical grating structure optically pumped laser lenticular printing laser display

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Lasing Behavior of BMPPV:PVK Mixture in Microcavity

引用

Semiconductor Photonics and Technology 2000年第3期6卷 161-164页

作者： WU Dong-jiang LIU Yun LIU Xing-yuan ZHAO Jia-min HE Xiao-dong WANG Li-jun MA Dong-ge WANG Li-xiang Changchun Institute of Physics Chinese Academy of SciencesChangchun 130021CHN Lab.of Excited State Processes Chinese Academy of SciencesChangchun 130021CHN Changchun University of Science and Technology Changchun 130026CHN Changchun Institute of Applied Chemistry Chinese Academy of SciencesChangchun 130022CHN

The surface emitting microcavity is formed by sandwiching a polymer film containing poly(para-phenylene vinylene)(BMPPV) and poly(N-vinylcarbazole)(PVK) between a DBR with a reflectivity of 99.5% and a silver film. The sample is optically pumped by a 337.1 nm line of nitrogen laser with 10 ns pulses at 20 Hz repetition rate . The lasing phenomenon is observed in BMPPV and PVK mixture microcavity. The full width at half maximum (FWHM) is 6 nm at the peak wavelength of 460 nm. The lasing threshold energy is estimated to be about 5 μJ.

关键词： Polymer lasing Microcavity optically pumped laser

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