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您的检索式：作者名="Qiuqiang Zhan"
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| 1 | Facile and Scalable Preparation of Fluorescent Carbon Dots for Multifunctional Applications显示文摘 | Dan Wang Zhiyong Wang Qiuqiang Zhan Yuan Pu Jie-xin wang Neil R. Foster Liming Dai | 2017 | Engineering2017，3，3： | 9 |
| 2 | Giant enhancements of high-order upconversion luminescence enabled by multiresonant hyperbolic metamaterials显示文摘Photonic nanostructures with resonant modes that can generate large electric field(EF) enhancements are applied to enhance light-matter interactions in nanoscale, bringing about great advances in both fundamental and applied science. However, a small hot spot(i.e., the regions with strong EF enhancements) and highly inhomogeneous EF distribution of the resonant modes usually hinder the enhancements of light-matter interactions in a large spatial scale. Additionally, it is a severe challenge to simultaneously generate multiple resonant modes with strong EF enhancements in a broadband spectral range, which greatly limits the capacity of a photonic nanostructure in boosting optical responses including nonlinear conversion, photoluminescence, etc. In order to overcome these challenges, we presented an arrayed hyperbolic metamaterial(AHMM). This AHMM structure is applied to simultaneously enhance the three-photon and four-photon luminescence of upconversion nanoparticles. Excitingly, the enhancement of the three-photon process is 1 order of magnitude larger than previous records, and for the enhancing four-photon process, we achieve an enhancement of 3350 times, greatly beneficial for overcoming the crucial problem of low efficiency in near infrared light upconversion. Our results demonstrated a promising platform for realizing giant enhancements of light-matter interactions, holding potential in constructing various photonics applications such as the nonlinear light sources. | Haofei Xu Zhimin Zhu Jiancai Xue Qiuqiang Zhan Zhangkai Zhou Xuehua Wang | 2021 | Photonics Research2021，9，3： | 1 |
| 3 | Upconversion nanoscopy revealing surface heterogeneity of tumor-secreted extracellular vesicles显示文摘Super-resolution microscopic imaging employing upconversion nanoparticles is applied to reveal the surface heterogeneity of tumor cell-derived small extracellular vesicles,i.e.,exosome.The number of surface antigens of every extracellular vesicles can be quantified by both the high imaging resolution and stable brightness of upconversion nanoparticles.This method proves its great potential in nanoscale biological studies. | Rui Pu Qiuqiang Zhan | 2023 | Light(Science & Applications)2023，12，4： | 0 |
| 4 | Luminescent nanoparticle-arrays synthesized via polymer pen lithography显示文摘We report a high-throughput approach to generating lanthanide-doped upconversion nanoparticle(UCNP)arrays through polymer pen lithography(PPL),where instead of the expensive block co-polymer,two types of polymers are employed with one working as ink carrier,e.g.,polyethylene glycol-400(PEG-400)to facilitate smooth transfer from the tip to the substrate and the other,e.g.,polyvinyl pyrrolidone(PVP),as chelator to ensure successful patterning of metal ions.The strong coordination of PVP with rare earth ions(RE^(3+))is the key for weakening the interaction between RE3+ions and the carrier PEG-400 so that the good mobility of ink can be retained.Further experimental results have shown that besides PVP,small molecules with functional groups that can coordinate with RE^(3+)ions,such as oleic acid,can also serve the same role as PVP,which greatly enriches the ink library for PPL.Over 1 cm^(2)area arrays comprising individual UCNP can be reliably generated with characteristic upconversion luminescence.This strategy not only allows reliable production of individual UCNP arrays,it also paves new avenue to the precise synthesis of multifunctional NPs for lasing,imaging,encryption,and anticounterfeiting. | Ping Wang Shuyi Bao Shuqian Qiao Ce Li Zhang Jiang Hao Song Yilin Wang Qiuqiang Zhan Ling Huang | 2023 | Nano Research2023，16，2： | 0 |
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