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5 years ago

Progress on Electronic and Optoelectronic Devices of 2D Layered Semiconducting Materials

Progress on Electronic and Optoelectronic Devices of 2D Layered Semiconducting Materials
Zhenxing Wang, Chao Jiang, Jun He, Fengmei Wang, Xueying Zhan, Kai Xu, Yu Zhang, Ruiqing Cheng, Lei Yin, Feng Wang
2D layered semiconducting materials (2DLSMs) represent the thinnest semiconductors, holding many novel properties, such as the absence of surface dangling bonds, sizable band gaps, high flexibility, and ability of artificial assembly. With the prospect of bringing revolutionary opportunities for electronic and optoelectronic applications, 2DLSMs have prospered over the past twelve years. From materials preparation and property exploration to device applications, 2DLSMs have been extensively investigated and have achieved great progress. However, there are still great challenges for high-performance devices. In this review, we provide a brief overview on the recent breakthroughs in device optimization based on 2DLSMs, particularly focussing on three aspects: device configurations, basic properties of channel materials, and heterostructures. The effects from device configurations, i.e., electrical contacts, dielectric layers, channel length, and substrates, are discussed. After that, the affect of the basic properties of 2DLSMs on device performance is summarized, including crystal defects, crystal symmetry, doping, and thickness. Finally, we focus on heterostructures based on 2DLSMs. Through this review, we try to provide a guide to improve electronic and optoelectronic devices of 2DLSMs for achieving practical device applications in the future. This Review provides an overview on the recent breakthroughs in device optimization for devices based on 2D layered semiconducting materials (2DLSMs), and aims to provide a guide to improve electronic and optoelectronic devices of 2DLSMs to achieve practical device applications in the future. In particular, device configurations, channel materials, and heterostructures are discussed.

Publisher URL: http://onlinelibrary.wiley.com/resolve/doi

DOI: 10.1002/smll.201604298

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