Flexible Encapsulation of Organic Light-Emitting Diode Using the LiF/polymer/LiF Buffer and Metal Foil
| Autor: | Jae Min Kim, Jun Ho Lee, Hyun Jung Kim, Ji Geun Jang |
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| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | Molecular Crystals and Liquid Crystals. 601:190-196 |
| ISSN: | 1563-5287 1542-1406 |
| DOI: | 10.1080/15421406.2014.940806 |
| Popis: | New simple and reliable encapsulation using the inorganic/organic/inorganic buffer and metal foil was studied on a red phosphorescent organic light-emitting diode (PhOLED) for flexible electronics. The LiF/polymer(AZ1512-photoresist)/LiF and Cu foil were used as the materials of the inorganic/organic/inorganic layers and a metal cover in the configuration of encapsulation, respectively. To make the process simple in the fabrication of red PhOLED, bis(10-hydroxybenzo[h]quinolinato)beryllium (Bebq2) was used in common as a host material of emissive layer and an electron transporting material of electron transport layer.The fabricated device before encapsulation showed a maximum quantum efficiency of 15.3%, color coordinates of (0.67, 0.32) and a luminance of 5,100 cd/m2 at 8V. Luminance change was little found in the process of flexible encapsulation. Luminance degradation of the device encapsulated with the buffer layers of LiF/AZ1512-photoresist/LiF and Cu foil according to the passage of time was very st... |
| Databáze: | OpenAIRE |
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