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Ferroelectric-Driven Exciton and Trion Modulation in Monolayer Molybdenum and Tungsten Diselenides

Wen, Bo; Zhu, Yi; Yudistira, Didit; Boes, Andreas; Zhang, Linglong; Yidirim, Tanju; Liu, Boqing; Yan, Han; Sun, Xueqian; Xue, Yunzhou; Zhang, Yupemg; Fu, Lan; Mitchell, Arnan; Zhang, Han; Lu, Yuerui


In this work, we show how domain-engineered lithium niobate can be used to selectively dope monolayer molybdenum selenide (MoSe2) and tungsten selenide (WSe2) and demonstrate that these ferroelectric domains can significantly enhance or inhibit photoluminescence (PL), with the most dramatic modulation occurring at the heterojunction interface between two domains. A micro-PL and Raman system is used to obtain spatially resolved images of the differently doped transition metal dichalcogenides...[Show more]

CollectionsANU Research Publications
Date published: 2019-04-24
Type: Journal article
Source: ACS Nano
DOI: 10.1021/acsnano.8b09800


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