Fabrication of Organic Light Emitting Diodes (OLEDs) using the Lamination method in a Vacuum-Free Environment

Daris Alfafa; Daniel Moraru; Arief Udhiarto

doi:10.62146/ijecbe.v1i2.24

Authors

Daris Alfafa Departemen Teknik Elektro UI, Department of Nanovision Technology Shizuoka University
Daniel Moraru Shizuoka University
Arief Udhiarto Universitas Indonesia

DOI:

https://doi.org/10.62146/ijecbe.v1i2.24

Keywords:

Lamination method, Organic Light Emitting Diodes (OLEDs), PFO, Spin coating, Vacuum-free environment

Abstract

Organic Light Emitting Diodes (OLEDs) have recently become one of the fastest-growing technologies in the world. The challenge in OLED fabrication, especially larger-area OLEDs, is its relatively high costs and complexity. The lamination method at a vacuum-free environment is an approach to simplify and reduce the cost of fabrication. This paper reports our latest progress on OLEDs fabricated using the said method and condition. The processing parameters were explored and optimized. Spin coating the emissive Layer (PFO) at 1300 rpm and the anode (TC-07-S) at 3000 rpm yield the best results in terms of current conduction and success rate. Laminating the OLEDs at 160 °C, with 245 N of force, and for 30 seconds, gave the best results in terms of previously stated parameters. Furthermore, the constituting materials of the OLEDs were explored. It was found that TC-07-S as an anode, PFO as the light-emitting material, a 30-micrometer thick aluminum foil as the cathode, and Kapton as the dielectric and adhesive material yielded the best results. These results may pave the way for other innovative methods to fabricate OLEDs with a simple and affordable processes.

References

E.F.Schubert and J.K. Kim, “Solid-state light sources getting smart”, Science. 308(5726) (2005) p. 1274-1278.

S. Reineke, M. Thomschke, B. Lüssem, and K. Leo, “White organic light-emitting diodes: Status and perspective”, Reviews of Modern Physics. 85(3) (2013) p. 1245-1293.

C.W. Tang and S.A. VanSlyke “Organic electroluminescent diodes”, Applied Physics Letters. 51(12) (1987) p. 913-915.

N. Thejokalyani and S.J. Dhoble, “Organic light emitting diodes: Energy saving lighting technology—a review”, Renewable and Sustainable Energy Reviews. 16(5) (2012) p. 2696-2723.

S.S. Swayamprabha, D.K. Dubey, Shahnawaz, R.A.K. Yadav, M.R. Nagar, A. Sharma, F.C. Tung, and J.H. Jou, “Approaches for long lifetime organic light emitting diodes”, Advanced Science. 8(1) (2020) p. 2002254.

S.M. Lee, J.H. Kwon, S. Kwon, and K.C. Choi, “A review of flexible OLEDs toward highly durable unusual displays”, IEEE Transactions on Electron Devices. 64(5) (2017) p. 1922–1931.

J.W. Park, D.C. Shin, and S.H. Park, “Large-area OLED lightings and their applications”, Semiconductor Science and Technology. 26(3) (2011) p. 034002.

J. H. Burroughes, D. D. C. Bradley, A. R. Brown, R. N. Marks, K. Mackay, R. H. Friend, P. L. Burns, and A. B. Holmes, “Light-emitting diodes based on conjugated polymers”, Nature. 347(6293) (1990) p. 539–541.

T.F. Guo, S. Pyo, S.C. Chang, and Y. Yang, “High performance polymer light-emitting diodes fabricated by a low temperature lamination process”, Advanced Functional Materials. 11(5) (2001) p. 339–343.

W. Mizutani, K. Aoba, H. Sakai, T. Ohmori, and H. Hyakutake, “Organic transparent electrodes applied to polymer light emitting diodes”, e-Journal of Surface Science and Nanotechnology. 12(0) (2014) p. 57–62.

N. Thejokalyani, H. Swart, S.J. Dhoble, “Chapter 2: Luminescence in Organic Semiconductors” in “Principles and applications of Organic Light Emitting Diodes (OLEDs)”, Woodhead Publishing. (2017).

H. Föll, “Semiconductors”, www.tf.uni-kiel.de/matwis/amat/semi_en, (2019). Edited by J.M. Wagner.

Chen, S.-F. and Wang, C.-W. (2004) ‘Influence of the hole injection layer on the luminescent performanceof organic light-emitting diodes’, Applied Physics Letters, 85(5), pp. 765–767. doi:10.1063/1.1775282.

Shahnawaz, S.S. Swayamprabha, M.R. Nagar, R.A.K. Yadav, S. Gull, D.K. Dubey and J.H. Jou, “Hole-transporting materials for organic light-emitting diodes: An overview”, Journal of Materials Chemistry C. 7(24) (2019) p. 7144–7158.

A.P. Kulkarni, C.J. Tonzola, A. Babel, and S.A. Jenekhe, “Electron transport materials for organic light-emitting diodes”, Chemistry of Materials. 16(23) (2004) p. 4556–457.

M.A.M Sarjidan, N. Jubri, S.H. Basri, N.K. Za'aba, S.N. Zaini, W.H.A. Majid, “Fabrication and Characterization of Solution Processed Top-Gate-Type Organic Light-Emitting Transistor”, Nanoscience and Nanotechnology Letters. 6(12) (2014) p. 1035–1039.