Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides

ACS Nano
Yu Jie ZhengAndrew Thye Shen Wee

Abstract

The nature and extent of electronic screening at heterointerfaces and their consequences on energy level alignment are of profound importance in numerous applications, such as solar cells, electronics etc. The increasing availability of two-dimensional (2D) transition metal dichalcogenides (TMDs) brings additional opportunities for them to be used as interlayers in "van der Waals (vdW) heterostructures" and organic/inorganic flexible devices. These innovations raise the question of the extent to which the 2D TMDs participate actively in dielectric screening at the interface. Here we study perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) monolayers adsorbed on single-layer tungsten diselenide (WSe2), bare graphite, and Au(111) surfaces, revealing a strong dependence of the PTCDA HOMO-LUMO gap on the electronic screening effects from the substrate. The monolayer WSe2 interlayer provides substantial, but not complete, screening at the organic/inorganic interface. Our results lay a foundation for the exploitation of the complex interfacial properties of hybrid systems based on TMD materials.

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Citations

May 4, 2016·Nano Letters·Yu Li HuangAndrew T S Wee
Sep 28, 2016·ACS Nano·Andrew T S WeeYury Gogotsi
Dec 9, 2016·Scientific Reports·Aleksandar MatkovićChristian Teichert
Mar 21, 2017·Nanoscale·Wanshun XiaZhiming Wang
Mar 23, 2018·Chemical Society Reviews·Shishu ZhangLianming Tong
Apr 14, 2018·Chemical Society Reviews·Yu Li HuangSu Ying Quek
Jul 25, 2018·Advanced Materials·Xiaolong Liu, Mark C Hersam
Jan 4, 2017·Nanotechnology·Avijit KumarPeter Liljeroth
Jul 31, 2019·Science Advances·Jie SuJiong Lu
Aug 20, 2019·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Andrew Tan, Pengpeng Zhang
Oct 13, 2017·Advanced Materials·Fangxu YangWenping Hu
Apr 6, 2021·The Journal of Physical Chemistry Letters·Quanzhen ZhangYeliang Wang
Jan 11, 2018·Journal of the American Chemical Society·Amin Morteza NajarianRichard L McCreery
Aug 17, 2019·The Journal of Physical Chemistry. a·Xiao-Ying XieGanglong Cui
Nov 22, 2018·The Journal of Physical Chemistry. a·Xiang-Yang LiuGanglong Cui
Jun 14, 2019·Journal of Chemical Theory and Computation·Zhen-Fei LiuJeffrey B Neaton
Jul 19, 2019·The Journal of Physical Chemistry Letters·Zhonghua LiuLifeng Chi
May 16, 2019·Journal of Chemical Theory and Computation·Fengyuan XuanSu Ying Quek
Aug 19, 2020·ACS Nano·Che-Hsuan ChengParag B Deotare
Oct 23, 2020·The Journal of Physical Chemistry Letters·Runrun XuSu Ying Quek
Oct 20, 2018·ACS Applied Materials & Interfaces·Che-Hsuan ChengParag B Deotare
Sep 8, 2021·The Journal of Physical Chemistry Letters·Nicholas Lin Quan ChengSu Ying Quek
Nov 5, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Yu Jie ZhengKuan Sun

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