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  1. ZnO Film UV Photodetector with Enhanced Performance: Heterojunction with CdMoO4 Microplates and the Hot Electron Injection Effect of Au Nanoparticles

    Weixin Ouyang, Feng Teng, Mingming Jiang and Xiaosheng Fang

    Version of Record online: 22 AUG 2017 | DOI: 10.1002/smll.201702177

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    Au nanoparticle modified CdMoO4–ZnO heterojunction UV photodetector with high performance is fabricated. A heterojunction formed between a ZnO film and CdMoO4 microplates, the hot electron injection effect of Au nanoparticles, and the Schottky barriers formed between Au nanoparticles and semiconductors cause the stepwise improvements of the photoelectronic performance of the heterojunction photodetectors.

  2. Synthesis of Uniquely Structured Yolk–Shell Metal Oxide Microspheres Filled with Nitrogen-Doped Graphitic Carbon with Excellent Li–Ion Storage Performance

    Jung Hyun Kim and Yun Chan Kang

    Version of Record online: 22 AUG 2017 | DOI: 10.1002/smll.201701585

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    Unique structured composite microspheres of metal oxide and nitrogen-doped graphitic carbon (NGC) are developed for efficient anode materials for lithium-ion batteries. The composite microspheres prepared by one-pot spray pyrolysis show excellent lithium-ion storage performances based on gravimetric and volumetric capacities, long-term cycling, and rate performances.

  3. A Novel and Facile Route to Synthesize Atomic-Layered MoS2 Film for Large-Area Electronics

    Stephen Boandoh, Soo Ho Choi, Ji-Hoon Park, So Young Park, Seungho Bang, Mun Seok Jeong, Joo Song Lee, Hyeong Jin Kim, Woochul Yang, Jae-Young Choi, Soo Min Kim and Ki Kang Kim

    Version of Record online: 22 AUG 2017 | DOI: 10.1002/smll.201701306

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    To synthesize large-area MoS2 film, the growth substrate is coated with an aqueous solution of Na2MoO4 prior to synthesis. Growth begins with the supply of liquid sulfur precursor via a bubbling system in an inert atmosphere. With adequate control of the concentration of Na2MoO4 and hydrogen flow, MoS2 film with controlled thickness is grown in 20 min.

  4. TiO2 Electron Transport Bilayer for Highly Efficient Planar Perovskite Solar Cell

    Hao Lu, Wei Tian, Bangkai Gu, Yayun Zhu and Liang Li

    Version of Record online: 22 AUG 2017 | DOI: 10.1002/smll.201701535

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    The TiO2 bilayers with different energy band alignments are fabricated by combing atomic layer deposition and spin-coating technique. Perovskite solar cells based on TiO2 electron transport bilayers are highly efficient in carrier extraction, recombination suppression, and defect passivation, and thus demonstrate champion efficiency up to 16.5%, which is almost 50% enhancement compared to the TiO2 single layer based counterparts.

  5. Porous Hollow-Structured LaNiO3 Stabilized N,S-Codoped Graphene as an Active Electrocatalyst for Oxygen Reduction Reaction

    Tran Duy Thanh, Nguyen Dinh Chuong, Jayaraman Balamurugan, Hoa Van Hien, Nam Hoon Kim and Joong Hee Lee

    Version of Record online: 22 AUG 2017 | DOI: 10.1002/smll.201701884

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    An efficient nanohybrid based on N and S codoped graphene-stabilized porous hollow-structured LaNiO3 nanocatalysts is successfully developed for the first time. Such a nanohybrid demonstrates comparable electrocatalytic activity, better working durability, and higher methanol and ethanol tolerance compared with commercial Pt/C for oxygen reduction reaction.