Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: José Oliveira; Deputy Editor: Mary Farrell
Online ISSN: 1613-6829
Associated Title(s): Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials, Advanced Materials Interfaces, Advanced Optical Materials, Particle & Particle Systems Characterization
Materials Science Weekly Newsletter
Recently Published Articles
- One-Dimensional Densely Aligned Perovskite-Decorated Semiconductor Heterojunctions with Enhanced Photocatalytic Activity
Mengye Wang, Dajiang Zheng, Meidan Ye, Chuchu Zhang, Binbin Xu, Changjian Lin, Lan Sun and Zhiqun Lin
Article first published online: 31 OCT 2014 | DOI: 10.1002/smll.201402692
Using one-dimensional rutile TiO2nanorod arrays as the structure-directing scaffold as well as the TiO2 source to two consecutive hydrothermal reactions, densely aligned SrTiO3-modified rutile TiO2 heterojunction photocatalysts are crafted for the first time. Such one-dimensional perovskite-decorated semiconductor nanoarrays exhibit high photocatalytic performance and are attractive for optoelectronic applications in photovoltaics, water-splitting, etc.
- Overcoming Concealment Effects of Targeting Moieties in the PEG Corona: Controlled Permeable Polymersomes Decorated with Folate-Antennae for Selective Targeting of Tumor Cells
Mohamed A. Yassin, Dietmar Appelhans, Ralf Wiedemuth, Petr Formanek, Susanne Boye, Albena Lederer, Achim Temme and Brigitte Voit
Article first published online: 31 OCT 2014 | DOI: 10.1002/smll.201402581
Polymersomes bearing freely accessible folate antennae on their surfaces overcome the concealment of folate moieties in the PEG corona. Thus, the selective internalization of such polymersomes into tumor cells is improved. The polymersomes have a pH-sensitive membrane, prohibiting premature Dox release until they are triggered in the acidic endosomal compartment.
- High-Responsivity Graphene/InAs Nanowire Heterojunction Near-Infrared Photodetectors with Distinct Photocurrent On/Off Ratios
Jinshui Miao, Weida Hu, Nan Guo, Zhenyu Lu, Xingqiang Liu, Lei Liao, Pingping Chen, Tao Jiang, Shiwei Wu, Johnny C. Ho, Lin Wang, Xiaoshuang Chen and Wei Lu
Article first published online: 31 OCT 2014 | DOI: 10.1002/smll.201402312
In this paper, graphene/InAs nanowire heterojunction near-infrared photodetectors are fabricated with a high Ilight/Idark ratio of 5 × 102. The photoresponsivity of these heterojunction near-infrared photodetectors is ∼0.5 A/W, which is much larger than that of graphene infrared photodetectors (∼0.1 mA/W). Moreover, the back-gated voltage can control the carrier density of the detectors.
- Metallic Nanocatalysis: An Accelerating Seamless Integration with Nanotechnology
Yihu Dai, Ye Wang, Bin Liu and Yanhui Yang
Article first published online: 31 OCT 2014 | DOI: 10.1002/smll.201400847
Metallic nanocatalysts exhibit structure-sensitive catalytic activities. In this review article, recent progress on shaped metallic nanocatalysts is examined and several influential parameters including particle size, composition, shape, and ligand effects are discussed, as well as finally highlight single-atom metallic catalysts and our perspectives on nanocatalysis.
- Perovskite Solar Cells: From Materials to Devices
Hyun Suk Jung and Nam-Gyu Park
Article first published online: 30 OCT 2014 | DOI: 10.1002/smll.201402767
Since the first report on a perovskite-sensitized solar cell developed in 2009, and long-term durable solid-state perovskite solar cell developed in 2012, power conversion efficiencies (PCEs) of over 15% have been reported. The highest PCE of a laboratory cell was 19.3%, which was developed by UCLA in 2014. Perovskite solar cells keep on surging, where better understanding of the opto-electronic properties of perovskite light absorbers is crucial to design higher-performing perovskite solar cells.