Processes Optimization of Isolating Layer in Organic Light-Emitting Diodes
| Autor: | Chun-Te Wu, 吳俊德 |
|---|---|
| Rok vydání: | 2018 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 106 This research aimed to process optimization of isolating layer in organic light-emitting diodes(OLED). When voltage applying on OLED device, circuit current of edge effect on the interface between organic film and ITO layer happens and causes undesirable power loss resulted from leakage current. In order to improve the stability and current efficiency of OLED, using isolating layer to separate aluminum layer and ITO electrode is essential. To obtain taper on the isolation layer, process optimization of taper was evaluated by several parameters. Based on parameter chart provided by isolating layer vendor, variables of photolithography mask material, exposure time, hard-bake temperature and time and usage of filter were examined to eliminate the deviation between different machines and most importantly to produce taper. Eventually, we confirmed the edge effect between ITO layer and isolating layer acquired by the optimized process. Leakage current decreased and successfully improved the OLED device efficiency. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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