Nano-imprint fabrication and light extraction simulation of photonic crystals on OLED

Yu, Jay Wang Chieh; Guo, Yoou Bin; Chen, Jiun Yeu; Hong, Franklin Chau Nan

doi:10.1117/12.806888

Cited by 1 publication

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“…Different optical approaches and structures such as microlens, nanostructured electrodes, scattering layers were used in the field of OLEDs to improve the light extraction efficiency of the devices [9,10]. The light extraction efficiency is one of the most important parameters of OLED, defined as the ratio of the total number of photons emitted by the OLED and the total number of photons generated within the organic emitter [10,11].…”

Section: Introductionmentioning

confidence: 99%

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Pulsed Laser Deposition of Transparent Conductive Oxides on UV-NIL Patterned Substrates for Optoelectronic Applications

Socol¹,

Preda²,

Breazu³

et al. 2023

Thin Films - Deposition Methods and Applications

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Transparent conductive oxide (TCO) electrodes are key components in the fabrication of optoelectronic devices such as organic photovoltaic cells (OPVs) or organic emitting devices (OLEDs). Pulsed laser deposition (PLD) results in TCO coatings with adequate optical and electrical properties, the preservation of the target chemical composition in the transferred films being the major advantage of this technique. Furthermore, the performance of the optoelectronic devices can be enhanced by patterning the TCO electrodes. Indium tin oxide (ITO) remains the most popular TCO due to its high conductivity and transparency. The scarcity of the indium resources encouraged the efforts to find an alternative to ITO, a promising candidate being Al-doped ZnO (AZO). Therefore, this chapter is focused on PLD deposition of TCO films (ITO and AZO) on patterned glass substrates prepared by ultraviolet nanoimprint lithography (UV-NIL) for obtaining transparent electrodes with improved characteristics, which further can be integrated in optoelectronic applications.

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Section: Introductionmentioning

confidence: 99%

“…In this way, almost 30% of the emitted photons are trapped in the glass substrate (glass mode), while a 50% are trapped at the organic/anode interface (waveguide mode). Therefore, various methods were used to extract more efficiently the light from the OLEDs [9,13].…”

Section: Introductionmentioning

confidence: 99%