Advanced Materials

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A Facile One‐step Method to Produce Graphene–CdS Quantum Dot Nanocomposites as Promising Optoelectronic Materials
Advanced Materials - Tập 22 Số 1 - Trang 103-106 - 2010
Aoneng Cao, Zhen Liu, Shijin Chu, Minghong Wu, Zhangmei Ye, Zhengwei Cai, Yanli Chang, Shufeng Wang, Qihuang Gong, Yuanfang Liu
An Exceptional Artificial Photocatalyst, Ni<sub>h</sub>‐CdSe/CdS Core/Shell Hybrid, Made In Situ from CdSe Quantum Dots and Nickel Salts for Efficient Hydrogen Evolution
Advanced Materials - Tập 25 Số 45 - Trang 6613-6618 - 2013
Zhijun Li, Jiuju Wang, Xu‐Bing Li, Xiang‐Bing Fan, Qingyuan Meng, Ke Feng, Bin Chen, Chen‐Ho Tung, Li‐Zhu Wu
Macroscopic 3D Porous Graphitic Carbon Nitride Monolith for Enhanced Photocatalytic Hydrogen Evolution
Advanced Materials - Tập 27 Số 31 - Trang 4634-4639 - 2015
Qinghua Liang, Zhi Li, Xiaoliang Yu, Zheng‐Hong Huang, Feiyu Kang, Quan‐Hong Yang
Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs
Advanced Materials - Tập 31 Số 43 - 2019
Wei Huang, David Restrepo, Jae‐Young Jung, Frances Su, Zengqian Liu, Robert O. Ritchie, Joanna McKittrick, Pablo Zavattieri, David Kisailus
AbstractBiological materials found in Nature such as nacre and bone are well recognized as light‐weight, strong, and tough structural materials. The remarkable toughness and damage tolerance of such biological materials are conferred through hierarchical assembly of their multiscale (i.e., atomic‐ to macroscale) architectures and components. Herein, the toughening mechanisms of different organisms at multilength scales are identified and summarized: macromolecular deformation, chemical bond breakage, and biomineral crystal imperfections at the atomic scale; biopolymer fibril reconfiguration/deformation and biomineral nanoparticle/nanoplatelet/nanorod translation, and crack reorientation at the nanoscale; crack deflection and twisting by characteristic features such as tubules and lamellae at the microscale; and structure and morphology optimization at the macroscale. In addition, the actual loading conditions of the natural organisms are different, leading to energy dissipation occurring at different time scales. These toughening mechanisms are further illustrated by comparing the experimental results with computational modeling. Modeling methods at different length and time scales are reviewed. Examples of biomimetic designs that realize the multiscale toughening mechanisms in engineering materials are introduced. Indeed, there is still plenty of room mimicking the strong and tough biological designs at the multilength and time scale in Nature.
A Sinusoidally Architected Helicoidal Biocomposite
Advanced Materials - Tập 28 Số 32 - Trang 6835-6844 - 2016
Nicholas A. Yaraghi, Nicolás Guarín‐Zapata, Lessa Kay Grunenfelder, Eric Hintsala, Sanjit Bhowmick, J. Hiller, Mark Betts, E. Principe, Jae‐Young Jung, L. R. Sheppard, Richard Wuhrer, Joanna McKittrick, Pablo Zavattieri, David Kisailus
Solution‐Processed Ti<sub>3</sub>C<sub>2</sub>T<i><sub>x</sub></i> MXene Antennas for Radio‐Frequency Communication
Advanced Materials - Tập 33 Số 1 - 2021
Meikang Han, Yuqiao Liu, Roman Rakhmanov, Christopher Israel, Md Abu Saleh Tajin, Gary Friedman, V. I. Volman, Ahmad Hoorfar, Kapil R. Dandekar, Yury Gogotsi
AbstractHighly integrated, flexible, and ultrathin wireless communication components are in significant demand due to the explosive growth of portable and wearable electronic devices in the fifth‐generation (5G) network era, but only conventional metals meet the requirements for emerging radio‐frequency (RF) devices so far. Here, it is reported on Ti3C2Tx MXene microstrip transmission lines with low‐energy attenuation and patch antennas with high‐power radiation at frequencies from 5.6 to 16.4 GHz. The radiation efficiency of a 5.5 µm thick MXene patch antenna manufactured by spray‐coating from aqueous solution reaches 99% at 16.4 GHz, which is about the same as that of a standard 35 µm thick copper patch antenna at about 15% of its thickness and 7% of the copper weight. MXene outperforms all other materials evaluated for patch antennas to date. Moreover, it is demonstrated that an MXene patch antenna array with integrated feeding circuits on a conformal surface has comparable performance with that of a copper antenna array at 28 GHz, which is a target frequency in practical 5G applications. The versatility of MXene antennas in wide frequency ranges coupled with the flexibility, scalability, and ease of solution processing makes MXene promising for integrated RF components in various flexible electronic devices.
Infrared Photodetectors Based on CVD‐Grown Graphene and PbS Quantum Dots with Ultrahigh Responsivity
Advanced Materials - Tập 24 Số 43 - Trang 5878-5883 - 2012
Zhenhua Sun, Zhike Liu, Jinhua Li, Guòan Tai, Shu Ping Lau, Feng Yan
Photosensitive Graphene Transistors
Advanced Materials - Tập 26 Số 31 - Trang 5239-5273 - 2014
Jinhua Li, Liyong Niu, Zijian Zheng, Feng Yan
High performance photodetectors play important roles in the development of innovative technologies in many fields, including medicine, display and imaging, military, optical communication, environment monitoring, security check, scientific research and industrial processing control. Graphene, the most fascinating two‐dimensional material, has demonstrated promising applications in various types of photodetectors from terahertz to ultraviolet, due to its ultrahigh carrier mobility and light absorption in broad wavelength range. Graphene field effect transistors are recognized as a type of excellent transducers for photodetection thanks to the inherent amplification function of the transistors, the feasibility of miniaturization and the unique properties of graphene. In this review, we will introduce the applications of graphene transistors as photodetectors in different wavelength ranges including terahertz, infrared, visible, and ultraviolet, focusing on the device design, physics and photosensitive performance. Since the device properties are closely related to the quality of graphene, the devices based on graphene prepared with different methods will be addressed separately with a view to demonstrating more clearly their advantages and shortcomings in practical applications. It is expected that highly sensitive photodetectors based on graphene transistors will find important applications in many emerging areas especially flexible, wearable, printable or transparent electronics and high frequency communications.
Heterostructured WS<sub>2</sub>/CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub> Photoconductors with Suppressed Dark Current and Enhanced Photodetectivity
Advanced Materials - Tập 28 Số 19 - Trang 3683-3689 - 2016
Chun Ma, Yumeng Shi, Weijin Hu, Ming‐Hui Chiu, Zhixiong Liu, Ashok Bera, Feng Li, Hong Wang, Lain‐Jong Li, Tom Wu
Thin Film Field‐Effect Phototransistors from Bandgap‐Tunable, Solution‐Processed, Few‐Layer Reduced Graphene Oxide Films
Advanced Materials - Tập 22 Số 43 - Trang 4872-4876 - 2010
Haixin Chang, Zhenhua Sun, Qinghong Yuan, Feng Ding, Xiaoming Tao, Feng Yan, Zijian Zheng
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