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  1. Tuning Excitonic Properties of Monolayer MoS2 with Microsphere Cavity by High-Throughput Chemical Vapor Deposition Method

    Yang Mi, Zhepeng Zhang, Liyun Zhao, Shuai Zhang, Jie Chen, Qingqing Ji, Jianping Shi, Xiebo Zhou, Rui Wang, Jia Shi, Wenna Du, Zhiyong Wu, Xiaohui Qiu, Qing Zhang, Yanfeng Zhang and Xinfeng Liu

    Version of Record online: 20 SEP 2017 | DOI: 10.1002/smll.201701694

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    Excitonic properties of molybdenum disulphide (MoS2) are tuned by directly depositing onto silica microspheres with chemical vapor deposition method. Whispering gallery mode peaks are observed and ultrafast spectroscopy studies suggest radiative recombination rate in MoS2 is enhanced due to Purcell effect. Refractive index sensing based on MoS2 cavity is demonstrated with sensitivity up to 150 nm per refractive index unit.

  2. Functionalization of Silicon Nanostructures for Energy-Related Applications

    Naoki Fukata, Thiyagu Subramani, Wipakorn Jevasuwan, Mrinal Dutta and Yoshio Bando

    Version of Record online: 20 SEP 2017 | DOI: 10.1002/smll.201701713

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    Functionalization of silicon nanostructures improve energy-related device performances. Shortened carrier collection paths and enhancement of light-trapping effect by 1-dimensional (1D) nanowire structures and nonradiative energy transfer effect by 0-dimensional (0D) nanocrystal structures effectively increase the power conversion efficiency of solar cells. Silicon-related nanocomposite structures also show higher capacity than commercially available lithium-ion battery anodes and more stable cyclic property than pure Si materials.

  3. Recent Progress on Flexible and Wearable Supercapacitors

    Qi Xue, Jinfeng Sun, Yan Huang, Minshen Zhu, Zengxia Pei, Hongfei Li, Yukun Wang, Na Li, Haiyan Zhang and Chunyi Zhi

    Version of Record online: 20 SEP 2017 | DOI: 10.1002/smll.201701827

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    Rapid development of wearable electronics including flexible displays, medical sensor, and portable power has become a notable technology trend. The latest development and advancement of flexible and wearable supercpacitor that could power flexible electronics are reviewed. The representative achievements based on different types of electrode materials are summarized. Furthermore, designing and assembling yarn/fiber-shaped and planar supercapacitors are introduced.

  4. The Effects of Physicochemical Properties of Nanomaterials on Their Cellular Uptake In Vitro and In Vivo

    Ye Liu, Bereket Workalemahu and Xingyu Jiang

    Version of Record online: 20 SEP 2017 | DOI: 10.1002/smll.201701815

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    The cellular uptake of nanomaterials is an important issue in the intersectant research area between nanomaterials and biomedicine. Uncovering the effects of physicochemical properties of nanomaterials (size, rigidity, shape, surface modification) on regulating the cellular uptake of nanomaterials in vitro and in vivo will be critical for facilitating the development of biofunctional nanomaterials.

  5. Capillarity Composited Recycled Paper/Graphene Scaffold for Lithium–Sulfur Batteries with Enhanced Capacity and Extended Lifespan

    Yunya Zhang, Zan Gao and Xiaodong Li

    Version of Record online: 20 SEP 2017 | DOI: 10.1002/smll.201701927

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    Graphene oxide is composited with recycled paper via a capillary absorption method. After high-temperature annealing, graphene films are homogeneously coated on activated paper carbon (APC), forming an APC/graphene scaffold. The assembled lithium–APC/graphene/sulfur battery exhibits a lifespan of 620 cycles with a 60.5% capacity retention. An APC interlayer further stretches the battery's lifespan up to 1000 cycles.