文献类型：期刊文献

英文题名：2D atomic crystal molecular superlattices by soft plasma intercalation

作者：Zhang, Lufang[1];Nan, Haiyan[1];Zhang, Xiumei[2];Liang, Qifeng[3];Du, Aijun[4,5];Ni, Zhenhua[6,7];Gu, Xiaofeng[1];Ostrikov, Kostya (Ken)[4,5,8];Xiao, Shaoqing[1]

机构：[1]Jiangnan Univ, Dept Elect Engn, Minist Educ, Engn Res Ctr IoT Technol Applicat, Wuxi 214122, Jiangsu, Peoples R China;[2]Jiangnan Univ, Sch Sci, Wuxi 214122, Jiangsu, Peoples R China;[3]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[4]Queensland Univ Technol QUT, Sch Chem & Phys, Brisbane, Qld 4000, Australia;[5]Queensland Univ Technol QUT, QUT Ctr Mat Sci, Brisbane, Qld 4000, Australia;[6]Southeast Univ, Minist Educ, Dept Phys, Nanjing 211189, Peoples R China;[7]Southeast Univ, Minist Educ, Key Lab MEMS, Nanjing 211189, Peoples R China;[8]CSIRO QUT Joint Sustainable Proc & Devices Lab, POB 218, Lindfield, NSW 2070, Australia

年份：2020

卷号：11

期号：1

外文期刊名：NATURE COMMUNICATIONS

收录：SCI-EXPANDED(收录号：WOS:000602959900006)、、Scopus(收录号：2-s2.0-85096598705)、WOS

基金：This work is partially supported by the National Nature Science Foundation under Grants 62074070, 11704159, and 11574215, the Natural Science Foundation of Jiangsu Province, China under Grants BK20170167 and BK20190576, the Fundamental Research Funds for the Central Universities of China under Grants JUSRP51726B, the 111 Project under Grant B12018, Postgraduate Research & Practice Innovation Program of Jiangsu Province under Grant KYCX18_1860. A.J.D. and K.O. acknowledge partial support by the Australian Research Council (ARC).

语种：英文

外文摘要：Two-dimensional (2D) atomic crystal superlattices integrate diverse 2D layered materials enabling adjustable electronic and optical properties. However, tunability of the interlayer gap and interactions remain challenging. Here we report a solution based on soft oxygen plasma intercalation. 2D atomic crystal molecular superlattices (ACMSs) are produced by intercalating O-2(+) ions into the interlayer space using the plasma electric field. Stable molecular oxygen layer is formed by van der Waals interactions with adjacent transition metal dichalcogenide (TMD) monolayers. The resulting interlayer gap expansion can effectively isolate TMD monolayers and impart exotic properties to homo-(MoS2[O-2](x)) and hetero-(MoS2[O-2](x)/WS2[O-2](x)) stacked ACMSs beyond typical capacities of monolayer TMDs, such as 100 times stronger photoluminescence and 100 times higher photocurrent. Our potentially universal approach to tune interlayer stacking and interactions in 2D ACMSs may lead to exotic superlattice properties intrinsic to monolayer materials such as direct bandgap pursued for future optoelectronics. Two-dimensional (2D) atomic crystal superlattices offer technological opportunities beyond the reach of existing materials. Here, the authors produce 2D atomic crystal molecular superlattices by intercalating O-2 molecules into the interlayer space of 2D materials using a soft plasma strategy.