Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides

Yu Jie Zheng; Yu Li Huang; Yifeng Chen; Weijie Zhao; Goki Eda; Catalin D. Spataru; Wenjing Zhang; Yung-Huang Chang; Lain-Jong Li; Dongzhi Chi; Su Ying Quek; Andrew Thye Shen Wee

doi:10.1021/acsnano.5b07314

Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides

Yu Jie Zheng, Yu Li Huang, Yifeng Chen, Weijie Zhao, Goki Eda, Catalin D. Spataru, Wenjing Zhang, Yung-Huang Chang, Lain-Jong Li, Dongzhi Chi, Su Ying Quek, Andrew Thye Shen Wee

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Abstract

© 2016 American Chemical Society. 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.

Original language	English (US)
Pages (from-to)	2476-2484
Number of pages	9
Journal	ACS Nano
Volume	10
Issue number	2
DOIs	https://doi.org/10.1021/acsnano.5b07314
State	Published - Jan 26 2016

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: The authors thank Zhuo Wang and Qixing Wang for helping us with transferring the CVD-WSe2 samples and checking the sample quality, Prof. Satoshi Kera and Kyushu Synchrotron Light Research Center (Japan) for ARPES mapping of the clean Au(111) surface, as well as Xin Luo, Kapildeb Dolui, Suchun Li and Zijing Ding for discussions. A.T.S.W. acknowledges support from MOE Grant R-144-000-321-112. S.Y.Q, and Y.C. acknowledge support from Grant NRF-NRFF2013-07 from the National Research Foundation, Singapore. G.E. acknowledges support from Grant NRF-NRFF2011-02 from the National Research Foundation, Singapore. Computations were performed on the NUS Graphene Research Centre cluster. We acknowledge support from the Singapore National Research Foundation, Prime Minister's Office, under its medium-sized centre program. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the U.S. DOE under contract DE-AC04-94AL85000.

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@article{d500a1222f3b4778a2c00509f4c9ec49,

title = "Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides",

abstract = "{\textcopyright} 2016 American Chemical Society. 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.",

author = "Zheng, {Yu Jie} and Huang, {Yu Li} and Yifeng Chen and Weijie Zhao and Goki Eda and Spataru, {Catalin D.} and Wenjing Zhang and Yung-Huang Chang and Lain-Jong Li and Dongzhi Chi and Quek, {Su Ying} and Wee, {Andrew Thye Shen}",

note = "KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank Zhuo Wang and Qixing Wang for helping us with transferring the CVD-WSe2 samples and checking the sample quality, Prof. Satoshi Kera and Kyushu Synchrotron Light Research Center (Japan) for ARPES mapping of the clean Au(111) surface, as well as Xin Luo, Kapildeb Dolui, Suchun Li and Zijing Ding for discussions. A.T.S.W. acknowledges support from MOE Grant R-144-000-321-112. S.Y.Q, and Y.C. acknowledge support from Grant NRF-NRFF2013-07 from the National Research Foundation, Singapore. G.E. acknowledges support from Grant NRF-NRFF2011-02 from the National Research Foundation, Singapore. Computations were performed on the NUS Graphene Research Centre cluster. We acknowledge support from the Singapore National Research Foundation, Prime Minister's Office, under its medium-sized centre program. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the U.S. DOE under contract DE-AC04-94AL85000.",

year = "2016",

month = jan,

day = "26",

doi = "10.1021/acsnano.5b07314",

language = "English (US)",

volume = "10",

pages = "2476--2484",

journal = "ACS Nano",

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publisher = "American Chemical Society",

number = "2",

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TY - JOUR

T1 - Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides

AU - Zheng, Yu Jie

AU - Huang, Yu Li

AU - Chen, Yifeng

AU - Zhao, Weijie

AU - Eda, Goki

AU - Spataru, Catalin D.

AU - Zhang, Wenjing

AU - Chang, Yung-Huang

AU - Li, Lain-Jong

AU - Chi, Dongzhi

AU - Quek, Su Ying

AU - Wee, Andrew Thye Shen

N1 - KAUST Repository Item: Exported on 2020-10-01 Acknowledgements: The authors thank Zhuo Wang and Qixing Wang for helping us with transferring the CVD-WSe2 samples and checking the sample quality, Prof. Satoshi Kera and Kyushu Synchrotron Light Research Center (Japan) for ARPES mapping of the clean Au(111) surface, as well as Xin Luo, Kapildeb Dolui, Suchun Li and Zijing Ding for discussions. A.T.S.W. acknowledges support from MOE Grant R-144-000-321-112. S.Y.Q, and Y.C. acknowledge support from Grant NRF-NRFF2013-07 from the National Research Foundation, Singapore. G.E. acknowledges support from Grant NRF-NRFF2011-02 from the National Research Foundation, Singapore. Computations were performed on the NUS Graphene Research Centre cluster. We acknowledge support from the Singapore National Research Foundation, Prime Minister's Office, under its medium-sized centre program. Sandia National Laboratories is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Co., for the U.S. DOE under contract DE-AC04-94AL85000.

PY - 2016/1/26

Y1 - 2016/1/26

N2 - © 2016 American Chemical Society. 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.

AB - © 2016 American Chemical Society. 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.

UR - http://hdl.handle.net/10754/621551

UR - https://pubs.acs.org/doi/10.1021/acsnano.5b07314

UR - http://www.scopus.com/inward/record.url?scp=84960157520&partnerID=8YFLogxK

U2 - 10.1021/acsnano.5b07314

DO - 10.1021/acsnano.5b07314

M3 - Article

C2 - 26792247

SN - 1936-0851

VL - 10

SP - 2476

EP - 2484

JO - ACS Nano

JF - ACS Nano

IS - 2

ER -

Heterointerface Screening Effects between Organic Monolayers and Monolayer Transition Metal Dichalcogenides

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