The initial interface formation between Al and tris-(8-hydroquinoline) aluminum (Alq3) with LiF interlayer

Jung Han Lee; Dae Won Moon; Yeonjin Yi

doi:10.1016/j.orgel.2009.09.022

The initial interface formation between Al and tris-(8-hydroquinoline) aluminum (Alq₃) with LiF interlayer

Jung Han Lee, Dae Won Moon, Yeonjin Yi

Department of Physics

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

8 Citations (Scopus)

Abstract

The interface between Al and tris-(8-hydroquinoline) aluminum (Alq₃) was studied using in situ medium energy ion scattering spectroscopy. We compared two interfaces of Al/LiF/Alq₃ and Al/Alq₃ with the elemental depth profile of each interface. The thin LiF changes the interfacial structures significantly; the excess Li in the LiF layer diffuses into Alq₃ while F does not. In addition, the Al diffusion into the Alq₃ layer during the initial stages of Al deposition is reduced significantly compared to the interface without the LiF interlayer. The LiF interlayer makes a more abrupt metal-organic interface, which would contribute to the efficiency and stability of the organic light-emitting device.

Original language	English
Pages (from-to)	164-168
Number of pages	5
Journal	Organic Electronics
Volume	11
Issue number	1
DOIs	https://doi.org/10.1016/j.orgel.2009.09.022
Publication status	Published - 2010 Jan

Bibliographical note

Funding Information:
This work was supported by Korea Research Council of Fundamental Science and Technology (KRCF) through the KRISS project of “Development of Advanced Industrial Metrology” and a research project of the Korea Research Foundation (Grant No. 2009-0070876 ).

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Biomaterials
Chemistry(all)
Condensed Matter Physics
Materials Chemistry
Electrical and Electronic Engineering

Access to Document

10.1016/j.orgel.2009.09.022

Cite this

@article{973038b5cf4241c0b4e8d75bd19e1e39,

title = "The initial interface formation between Al and tris-(8-hydroquinoline) aluminum (Alq3) with LiF interlayer",

abstract = "The interface between Al and tris-(8-hydroquinoline) aluminum (Alq3) was studied using in situ medium energy ion scattering spectroscopy. We compared two interfaces of Al/LiF/Alq3 and Al/Alq3 with the elemental depth profile of each interface. The thin LiF changes the interfacial structures significantly; the excess Li in the LiF layer diffuses into Alq3 while F does not. In addition, the Al diffusion into the Alq3 layer during the initial stages of Al deposition is reduced significantly compared to the interface without the LiF interlayer. The LiF interlayer makes a more abrupt metal-organic interface, which would contribute to the efficiency and stability of the organic light-emitting device.",

author = "Lee, {Jung Han} and Moon, {Dae Won} and Yeonjin Yi",

note = "Funding Information: This work was supported by Korea Research Council of Fundamental Science and Technology (KRCF) through the KRISS project of “Development of Advanced Industrial Metrology” and a research project of the Korea Research Foundation (Grant No. 2009-0070876 ).",

year = "2010",

month = jan,

doi = "10.1016/j.orgel.2009.09.022",

language = "English",

volume = "11",

pages = "164--168",

journal = "Organic Electronics",

issn = "1566-1199",

publisher = "Elsevier",

number = "1",

}

TY - JOUR

T1 - The initial interface formation between Al and tris-(8-hydroquinoline) aluminum (Alq3) with LiF interlayer

AU - Lee, Jung Han

AU - Moon, Dae Won

AU - Yi, Yeonjin

N1 - Funding Information: This work was supported by Korea Research Council of Fundamental Science and Technology (KRCF) through the KRISS project of “Development of Advanced Industrial Metrology” and a research project of the Korea Research Foundation (Grant No. 2009-0070876 ).

PY - 2010/1

Y1 - 2010/1

N2 - The interface between Al and tris-(8-hydroquinoline) aluminum (Alq3) was studied using in situ medium energy ion scattering spectroscopy. We compared two interfaces of Al/LiF/Alq3 and Al/Alq3 with the elemental depth profile of each interface. The thin LiF changes the interfacial structures significantly; the excess Li in the LiF layer diffuses into Alq3 while F does not. In addition, the Al diffusion into the Alq3 layer during the initial stages of Al deposition is reduced significantly compared to the interface without the LiF interlayer. The LiF interlayer makes a more abrupt metal-organic interface, which would contribute to the efficiency and stability of the organic light-emitting device.

AB - The interface between Al and tris-(8-hydroquinoline) aluminum (Alq3) was studied using in situ medium energy ion scattering spectroscopy. We compared two interfaces of Al/LiF/Alq3 and Al/Alq3 with the elemental depth profile of each interface. The thin LiF changes the interfacial structures significantly; the excess Li in the LiF layer diffuses into Alq3 while F does not. In addition, the Al diffusion into the Alq3 layer during the initial stages of Al deposition is reduced significantly compared to the interface without the LiF interlayer. The LiF interlayer makes a more abrupt metal-organic interface, which would contribute to the efficiency and stability of the organic light-emitting device.

UR - http://www.scopus.com/inward/record.url?scp=72649106781&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=72649106781&partnerID=8YFLogxK

U2 - 10.1016/j.orgel.2009.09.022

DO - 10.1016/j.orgel.2009.09.022

M3 - Article

AN - SCOPUS:72649106781

SN - 1566-1199

VL - 11

SP - 164

EP - 168

JO - Organic Electronics

JF - Organic Electronics

IS - 1

ER -