© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor-in-Chief: Peter Gregory, Deputy Editors: Mary De Vita, Duoduo Liang, Lorna Stimson
Online ISSN: 1521-4095
Associated Title(s): Advanced Biosystems, Advanced Electronic Materials, Advanced Energy Materials, Advanced Engineering Materials, Advanced Functional Materials, Advanced Healthcare Materials, Advanced Materials Interfaces, Advanced Materials Technologies, Advanced Optical Materials, Advanced Science, Advanced Sustainable Systems, Global Challenges, Laser & Photonics Reviews, Particle & Particle Systems Characterization, Small Methods, Small
Recently Published Articles
- Naphthobischalcogenadiazole Conjugated Polymers: Emerging Materials for Organic Electronics
Itaru Osaka and Kazuo Takimiya
Version of Record online: 27 FEB 2017 | DOI: 10.1002/adma.201605218
π-Conjugated polymers are an important class of materials for organic electronics. This article focuses on the recent advances of emerging π-conjugated polymers incorporating naphthobischalcogenadiazoles such as naphthobisoxadiazole, naphthobisthiadiazole, and naphthobisselenadiazle as strong acceptor building unit. The molecular design, synthesis, electronic properties, ordering structures, and device applications of these polymers are also discussed.
- C3N—A 2D Crystalline, Hole-Free, Tunable-Narrow-Bandgap Semiconductor with Ferromagnetic Properties
Siwei Yang, Wei Li, Caichao Ye, Gang Wang, He Tian, Chong Zhu, Peng He, Guqiao Ding, Xiaoming Xie, Yang Liu, Yeshayahu Lifshitz, Shuit-Tong Lee, Zhenhui Kang and Mianheng Jiang
Version of Record online: 27 FEB 2017 | DOI: 10.1002/adma.201605625
C3N consists of a 2D honeycomb lattice with homogeneous distribution of nitrogen atoms, where both N and C atoms show D6h-symmetry. It is a semiconductor with an indirect bandgap of 0.39 eV. Back-gated field effect transistors made of single-layer C3N display an on–off current ratio reaching 5.5 × 1010. Surprisingly, C3N exhibits ferromagnetic order when doped with hydrogen.
- Circular Graphene Platelets with Grain Size and Orientation Gradients Grown by Chemical Vapor Deposition
Xing Xin, Zeyuan Fei, Teng Ma, Long Chen, Mao-Lin Chen, Chuan Xu, Xitang Qian, Dong-Ming Sun, Xiu-Liang Ma, Hui-Ming Cheng and Wencai Ren
Version of Record online: 27 FEB 2017 | DOI: 10.1002/adma.201605451
Monolayer circular graphene platelets with a grain structure gradient in the radial direction are synthesized by chemical vapor deposition on immiscible W–Cu substrates. Because of the different interactions and growth behaviors of graphene on Cu and tungsten carbide, such substrates cause the formation of grain size and orientation gradients through the competition between Cu and tungsten carbide in graphene growth.
- Isomer-Pure Bis-PCBM-Assisted Crystal Engineering of Perovskite Solar Cells Showing Excellent Efficiency and Stability
Fei Zhang, Wenda Shi, Jingshan Luo, Norman Pellet, Chenyi Yi, Xiong Li, Xiaoming Zhao, T. John S. Dennis, Xianggao Li, Shirong Wang, Yin Xiao, Shaik Mohammed Zakeeruddin, Dongqin Bi and Michael Grätzel
Version of Record online: 27 FEB 2017 | DOI: 10.1002/adma.201606806
Significantly improved performance of mixed perovskite solar cells, using a facile α-bis-PCBM-containing perovskite growth method during device fabrication, is reported. The newly developed perovskite solar cell exhibits an enhanced power conversion efficiency of 20.8%, along with enhanced stability under heat and illumination.
- Ultrathin Iron-Cobalt Oxide Nanosheets with Abundant Oxygen Vacancies for the Oxygen Evolution Reaction
Linzhou Zhuang, Lei Ge, Yisu Yang, Mengran Li, Yi Jia, Xiangdong Yao and Zhonghua Zhu
Version of Record online: 27 FEB 2017 | DOI: 10.1002/adma.201606793
Ultrathin iron-cobalt oxide nanosheets (FexCoy-ONSs) rich in oxygen vacancies are prepared through NaBH4 fast reduction. Nanosheets with an equal Fe/Co ratio exhibit high oxygen evolution reaction (OER) activity. Experimental results prove that the abundant oxygen vacancies and large surface area of Fe1Co1-ONS can provide more OER active sites and facilitate mass/electron transfer, while Fe3+ incorporation can increase the reactivity of active sites.