Advanced Functional Materials

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  1. Solution-Processed Extremely Efficient Multicolor Perovskite Light-Emitting Diodes Utilizing Doped Electron Transport Layer

    Khan Qasim, Baoping Wang, Yupeng Zhang, Pengfei Li, Yusheng Wang, Shaojuan Li, Shuit-Tong Lee, Liang-Sheng Liao, Wei Lei and Qiaoliang Bao

    Version of Record online: 24 MAR 2017 | DOI: 10.1002/adfm.201606874

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    A specially designed n-type semiconductor consisting of Ca-doped ZnO nanoparticles is used as the electron transport layer (ETL) in high-performance multicolor perovskite light-emitting diodes fabricated using an all-solution process. The strategy of using a tunable ETL in combination with a solution process pushes perovskite-based materials a step closer to practical application in multicolor light-emitting devices.

  2. Evidence and Effect of Photogenerated Charge Transfer for Enhanced Photocatalysis in WO3/TiO2 Heterojunction Films: A Computational and Experimental Study

    Carlos Sotelo-Vazquez, Raul Quesada-Cabrera, Min Ling, David O. Scanlon, Andreas Kafizas, Pardeep Kumar Thakur, Tien-Lin Lee, Alaric Taylor, Graeme W. Watson, Robert G. Palgrave, James R. Durrant, Christopher S. Blackman and Ivan P. Parkin

    Version of Record online: 24 MAR 2017 | DOI: 10.1002/adfm.201605413

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    Advanced nanostructured WO3/TiO2 heterojunction films are deposited using chemical vapor deposition methods. Against common observation, this system shows an unusual electron transfer from WO3 to TiO2, as proven by theoretical and experimental standpoints. The advantageous electronic synergy within a high-surface-area substrate promotes its photocatalytic properties showing record-high efficiencies for the degradation of organic pollutants.

  3. Ultrathin MnO2/Graphene Oxide/Carbon Nanotube Interlayer as Efficient Polysulfide-Trapping Shield for High-Performance Li–S Batteries

    Weibang Kong, Lingjia Yan, Yufeng Luo, Datao Wang, Kaili Jiang, Qunqing Li, Shoushan Fan and Jiaping Wang

    Version of Record online: 24 MAR 2017 | DOI: 10.1002/adfm.201606663

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    Ultrathin MnO2/graphene oxide/carbon nanotube (G/M@CNT) sandwiched interlayer with synergetic effects of graphene oxide sheets, MnO2 nanoparticles, and superaligned carbon nanotube films, significantly alleviates polysulfide shuttling and improves the cycling stability and rate performance of Li–S batteries. Self-discharge and passivation layer formation on the anode are greatly suppressed by the excellent polysulfide-trapping ability of the G/M@CNT interlayer.

  4. In Situ Generated Gold Nanoparticle Hybrid Polymersomes for Water-Soluble Chemotherapeutics: Inhibited Leakage and pH-Responsive Intracellular Release

    Jun Fu, Lina Liang and Liyan Qiu

    Version of Record online: 23 MAR 2017 | DOI: 10.1002/adfm.201604981

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    Gold nanoparticle hybrid polymersomes based on amphiphilic pH-sensitive polyphosphazenes (IAuPNP-3) are constructed by in situ generation method to inhibit the leakage of water-soluble doxorubicin hydrochloride (DOX·HCl) during circulation due to strengthened packing density of polymersome membrane, as well as to facilitate pH-responsive intracellular drug release. Consequently, DOX·HCl-loaded IAuPNP-3 significantly improves in vivo antitumor efficacy.

  5. Extended Solution Gate OFET-Based Biosensor for Label-Free Glial Fibrillary Acidic Protein Detection with Polyethylene Glycol-Containing Bioreceptor Layer

    Jian Song, Jennifer Dailey, Hui Li, Hyun-June Jang, Pengfei Zhang, Jeff Tza-Huei Wang, Allen D. Everett and Howard E. Katz

    Version of Record online: 23 MAR 2017 | DOI: 10.1002/adfm.201606506

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    A novel organic field effect transistor-based biosensor is described for label-free glial fibrillary acidic protein detection. Different molecular weight polyethylene glycols are mixed into the bioreceptor layer to help extend the Debye screening length. The sensitivity increases while Vg decreases since lower Vg is much closer to the OFET threshold voltage and the influence of attached proteins becomes more apparent.

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