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Träfflista för sökning "WFRF:(Liu Xiaochun) srt2:(2020-2021)"

Sökning: WFRF:(Liu Xiaochun) > (2020-2021)

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1.
  • Zhao, Haifeng, et al. (författare)
  • Efficient and High-Luminance Perovskite Light-Emitting Diodes Based on CsPbBr3 Nanocrystals Synthesized from a Dual-Purpose Organic Lead Source
  • 2020
  • Ingår i: Small. - : WILEY-V C H VERLAG GMBH. - 1613-6810 .- 1613-6829.
  • Tidskriftsartikel (refereegranskat)abstract
    • Rational engineering of the surface properties of perovskite nanocrystals (PeNCs) is critical to obtain light emitters with simultaneous high photoluminescence efficiency and excellent charge transport properties for light-emitting diodes (LEDs). However, the commonly used lead halide sources make it hard to rationally optimize the surface compositions of the PeNCs. In addition, previously developed ligand engineering strategies for conventional inorganic nanocrystals easily deteriorate surface properties of the PeNCs, bringing additional difficulties in optimizing their optoelectronic properties. In this work, a novel strategy of employing a dual-purpose organic lead source for the synthesis of highly luminescent PeNCs with enhanced charge transport property is developed. Lead naphthenate (Pb(NA)(2)), of which the metal ions work as lead sources while the naphthenate can function as the surface ligands afterward, is explored and the obtained products under different synthesis conditions are comprehensively investigated. Monodispersed cesium lead bromide (CsPbBr3) with controllable size and excellent optical properties, showing superior photoluminescence quantum yields up to 80%, is obtained. Based on the simultaneously enhanced electrical properties of the Pb(NA)(2)-derived PeNCs, the resultant LEDs demonstrate a high peak external quantum efficiency of 8.44% and a superior maximum luminance of 31 759 cd cm(-2).
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2.
  • Hu, Jiwen, et al. (författare)
  • Rapid detection of mercury (II) ions and water content by a new rhodamine B-based fluorescent chemosensor
  • 2020
  • Ingår i: Spectrochimica Acta Part A - Molecular and Biomolecular Spectroscopy. - : PERGAMON-ELSEVIER SCIENCE LTD. - 1386-1425 .- 1873-3557. ; 241
  • Tidskriftsartikel (refereegranskat)abstract
    • A rhodamine B-based sensor (RS) was designed and synthesized by a combination of the spirolacton rhodamine B (fluorophore) and multidentate chelates (ionophore) with high affinity towards Hg2+. In the presence of Hg2+, the resulting red-orange fluorescence (under UV light) and naked eye red color of IDS are supposed to be used for quantitative and qualitative measurement of Hg2+. Further fluorescent titration and analysis demonstrate that RS can selectively detect Hg2+ within 1 s with a low limit of detection (LOD) of 16 nM in acetonitrile media, meanwhile, the association constant (K-a) was calculated to be 0.32 x 10(5) M-1. More importantly, the resultant complex (RSHg) of RS and Hg2+ has also been successfully applied to detect limited water content in acetonitrile solution. (C) 2020 Published by Elsevier B.V.
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  • Resultat 1-2 av 2
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tidskriftsartikel (2)
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refereegranskat (2)
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Hu, Zhang-Jun (2)
Liu, Xiaochun (1)
Uvdal, Kajsa (1)
Bai, Sai (1)
Gao, Feng (1)
Kuang, Chaoyang (1)
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Zhang, Xin (1)
Zhao, Haifeng (1)
Zeng, Peng (1)
Liu, Tingting (1)
Hu, Jiwen (1)
Gao, Hong-Wen (1)
Yu, Xili (1)
Jing, Changcheng (1)
Hu, Xiaochun (1)
Lu, Senlin (1)
Liu, Mingzhen (1)
Wei, Linfeng (1)
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2020 (2)

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