The interfacial electronic structure between pentacene and multilayer graphene

Sang Wan Cho; Yeonjin Yi; Seong Jun Kang

doi:10.1016/j.synthmet.2011.09.036

The interfacial electronic structure between pentacene and multilayer graphene

Sang Wan Cho, Yeonjin Yi, Seong Jun Kang

Research output: Contribution to journal › Article › peer-review

4 Citations (Scopus)

Abstract

The electronic structure at the interface region between pentacene and multilayer graphene (MLG) was investigated by in situ ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy. The secondary electron cutoffs, highest occupied molecular orbital (HOMO), and core-level changes were measured after deposition of pentacene on MLG to investigate the electronic structure at the interface. From the results, it was confirmed that there was neither band bending nor an interface dipole at the pentacene/MLG interface, even though a vacuum level shift was observed due to the three-dimensional growth of pentacene. In addition, there was no chemical reaction observed at the interface. The complete interfacial energy level band diagram of pentacene/MLG was also obtained to confirm the hole and electron injection barriers.

Original language	English
Pages (from-to)	2488-2491
Number of pages	4
Journal	Synthetic Metals
Volume	161
Issue number	21-22
DOIs	https://doi.org/10.1016/j.synthmet.2011.09.036
Publication status	Published - 2011 Nov

Bibliographical note

Funding Information:
This work was supported by a research project of the Korea Research Foundation (Grant Nos. 2011-0002411 , 2011-0005787 , and 2011-0004748 ). We thank Dr. J.W. Kim and W.M. Choi for their support with the experiments.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

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10.1016/j.synthmet.2011.09.036

Cite this

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title = "The interfacial electronic structure between pentacene and multilayer graphene",

abstract = "The electronic structure at the interface region between pentacene and multilayer graphene (MLG) was investigated by in situ ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy. The secondary electron cutoffs, highest occupied molecular orbital (HOMO), and core-level changes were measured after deposition of pentacene on MLG to investigate the electronic structure at the interface. From the results, it was confirmed that there was neither band bending nor an interface dipole at the pentacene/MLG interface, even though a vacuum level shift was observed due to the three-dimensional growth of pentacene. In addition, there was no chemical reaction observed at the interface. The complete interfacial energy level band diagram of pentacene/MLG was also obtained to confirm the hole and electron injection barriers.",

author = "Cho, {Sang Wan} and Yeonjin Yi and Kang, {Seong Jun}",

note = "Funding Information: This work was supported by a research project of the Korea Research Foundation (Grant Nos. 2011-0002411 , 2011-0005787 , and 2011-0004748 ). We thank Dr. J.W. Kim and W.M. Choi for their support with the experiments.",

year = "2011",

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doi = "10.1016/j.synthmet.2011.09.036",

language = "English",

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journal = "Synthetic Metals",

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T1 - The interfacial electronic structure between pentacene and multilayer graphene

AU - Cho, Sang Wan

AU - Yi, Yeonjin

AU - Kang, Seong Jun

N1 - Funding Information: This work was supported by a research project of the Korea Research Foundation (Grant Nos. 2011-0002411 , 2011-0005787 , and 2011-0004748 ). We thank Dr. J.W. Kim and W.M. Choi for their support with the experiments.

PY - 2011/11

Y1 - 2011/11

N2 - The electronic structure at the interface region between pentacene and multilayer graphene (MLG) was investigated by in situ ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy. The secondary electron cutoffs, highest occupied molecular orbital (HOMO), and core-level changes were measured after deposition of pentacene on MLG to investigate the electronic structure at the interface. From the results, it was confirmed that there was neither band bending nor an interface dipole at the pentacene/MLG interface, even though a vacuum level shift was observed due to the three-dimensional growth of pentacene. In addition, there was no chemical reaction observed at the interface. The complete interfacial energy level band diagram of pentacene/MLG was also obtained to confirm the hole and electron injection barriers.

AB - The electronic structure at the interface region between pentacene and multilayer graphene (MLG) was investigated by in situ ultraviolet photoelectron spectroscopy and X-ray photoelectron spectroscopy. The secondary electron cutoffs, highest occupied molecular orbital (HOMO), and core-level changes were measured after deposition of pentacene on MLG to investigate the electronic structure at the interface. From the results, it was confirmed that there was neither band bending nor an interface dipole at the pentacene/MLG interface, even though a vacuum level shift was observed due to the three-dimensional growth of pentacene. In addition, there was no chemical reaction observed at the interface. The complete interfacial energy level band diagram of pentacene/MLG was also obtained to confirm the hole and electron injection barriers.

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The interfacial electronic structure between pentacene and multilayer graphene

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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