Proceedings of the 2017 7th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)

Organic Light Emitting Devices with Nano-ZnO Thin Films as Cathode Buffer Layer

Authors
Yinglian Wang, Junyao Ye
Corresponding Author
Yinglian Wang
Available Online July 2017.
DOI
10.2991/icadme-17.2017.43How to use a DOI?
Keywords
Organic light emitting device; ZnO cathode buffer layer; vacuum thermal evaporation; current density; luminous efficiency
Abstract

Organic light emitting devices (OLED) with the structure of ITO / TPD / Alq3 / ZnO / Al were prepared by vacuum thermal evaporation method. By establishing multi-layer structure model, we discussed the influence of Alq3 deposition thickness and ZnO buffer layer on the photoelectric performance of the device, got the relationship of current density and work voltage. The results show that ZnO buffer layer can produce additional dipole energy and reduce the electronic potential barrier of cathode, its best thickness is 3 nm, too thin or too thick will increase the driving voltage, block carriers injected. When the thickness of Alq3 film is 50 nm, the photoelectric performance is best, current density reaches 100 mA/cm2, the increase of Alq3 thickness will make the electronics through the layer become scarce, affect the compound with holes. The results provide theoretical guidance to optimize the design and increase the performance of OLED.

Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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Volume Title
Proceedings of the 2017 7th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)
Series
Advances in Engineering Research
Publication Date
July 2017
ISBN
10.2991/icadme-17.2017.43
ISSN
2352-5401
DOI
10.2991/icadme-17.2017.43How to use a DOI?
Copyright
© 2017, the Authors. Published by Atlantis Press.
Open Access
This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Cite this article

TY  - CONF
AU  - Yinglian Wang
AU  - Junyao Ye
PY  - 2017/07
DA  - 2017/07
TI  - Organic Light Emitting Devices with Nano-ZnO Thin Films as Cathode Buffer Layer
BT  - Proceedings of the 2017 7th International Conference on Advanced Design and Manufacturing Engineering (ICADME 2017)
PB  - Atlantis Press
SP  - 218
EP  - 221
SN  - 2352-5401
UR  - https://doi.org/10.2991/icadme-17.2017.43
DO  - 10.2991/icadme-17.2017.43
ID  - Wang2017/07
ER  -