Monolayers: Thermodynamically Stable Synthesis of Large-Scale and Highly Crystalline Transition Metal Dichalcogenide Monolayers and their Unipolar n–n Heterojunction Devices (Adv. Mater. 33/2017)

5 years ago

Monolayers: Thermodynamically Stable Synthesis of Large-Scale and Highly Crystalline Transition Metal Dichalcogenide Monolayers and their Unipolar n–n Heterojunction Devices (Adv. Mater. 33/2017)

Stephen M. Morris, Young-Woo Lee, Luigi G. Occhipinti, Hee-Suk Chung, Sangyeon Pak, Juwon Lee, Hu Young Jeong, Hyeon Suk Shin, John Hong, Yuljae Cho, Jong Min Kim, Jung Inn Sohn, Paul Giraud, SeungNam Cha, A-Rang Jang, Woong-Ki Hong

A novel synthesis approach for high-quality, large-scale transition-metal dichalcogenide monolayers is developed by SeungNam Cha, Jung Inn Sohn, and co-workers, as described in article number 1702206. The low supersaturation level, triggered by the evaporation of an extremely thin precursor layer, reduces the nucleation density dramatically under a thermodynamically stable environment, yielding uniform and clean large-area monolayer films. The vertically stacked heterostructured device shows a fast response time and a high photoresponsivity.

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

DOI: 10.1002/adma.201770236