設施農業：節能栽培與滅菌【材料科學與工程學系/武東星特聘教授】
| 論文篇名 | 英文：Improved Performance of Passive-Matrix Micro-LED Displays Using a Multi-Function Passivation Structure 中文：藉由多功能鈍化結構提升被動式微型發光二極體顯示器效能 |
| 期刊名稱 | IEEE PHOTONICS JOURNAL |
| 發表年份,卷數,起迄頁數 | 2020, 12 (4), 7000711 |
| 作者 | Chen, Po-Wei; Hsiao, Po-Wen; Shen, Po-Chen; Chen, Hsuan-Jen; Chen, Yi-An(陳怡安); Horng, Ray-Hua; Wuu, Dong-Sing(武東星)* |
| DOI | 10.1109/JPHOT.2020.3002554 |
| 中文摘要 | 藉由錐形側壁和分佈式布拉格反射器（DBR）鈍化結構，來提升被動式微型發光二極體（Micro-LED）顯示器的光輸出效率。發光層和n-GaN底部的傾斜角分別為48.9°和21.8°，這有利於像素內連線平坦化。 隨著布拉格反射器（SiO2/TiO2）堆疊數量從3.5對增加到5.5對，在450 nm波長處，反射率從81.4％顯著增加到98.0％。具有多功能布拉格反射器結構的Micro-LED顯示器，在1 mA下的輸出功率為1.07 mW，在0.2 mA下的外部量子效率為42％，亮度為435 nits。 |
| 英文摘要 | The enhanced light output efficiency of passive-matrix micro light-emitting-diode (LED) display was achieved by employing the tapered sidewalls and distributed-Bragg- reflector (DBR) passivation structure. The oblique angles at the bottom of multi-quantum wall and n-GaN are 48.9° and 21.8°, which can favor the planarization structure of pixel interconnection. As increasing the number of DBR (SiO2/TiO2) stacking from 3.5 to 5.5 pairs, the reflectance increased obviously from 81.4% to 98.0% at the wavelength of 450 nm. As the micro-LED display with a multi-function DBR structure, the output power of 1.07 mW under 1 mA, the external-quantum efficiency of 42% under 0.2 mA, and the luminance of 435 nits were obtained. |
