銦錫氧化物奈米柱對有機發光二極體效率之影響

Embedded indium-tin-oxide nanorod electrodes for efficiency of organic light-emitting diode

許家碩(Chia-Shuo Hsu)

指導教授 ： 趙宇強

中原大學/理學院/物理研究所/碩士(2014年)

https://doi.org/10.6840/cycu201400152

摘要

本論文探討了銦錫氧化物奈米柱對有機高分子發光二極體之影響。我們以新發展出的濕式蝕刻方式將銦錫氧化物薄膜蝕刻為奈米柱。當蝕刻時間控制適當時則可以形成奈米柱卻又不會造成斷路。電洞傳輸層可以透過旋轉塗佈時之轉速以達到填滿銦錫氧化物奈米柱間隙之目的。研究結果發現，銦錫氧化物奈米柱相較於薄膜具有較高的光穿透率。銦錫氧化物奈米柱也可以將光散射。當比較有機高分子發光二極體製備在銦錫氧化物奈米柱上方與製備在銦錫氧化物薄膜上方的元件時，製備在銦錫氧化物奈米柱上方的有機高分子發光二極體之發光強度與發光效率均比製備在銦錫氧化物薄膜上方的有機高分子發光二極體還要好。我們認為發光強度與發光效率的提升是由於銦錫氧化物奈米柱的高穿透率所導致。

關鍵字

有機發光二極體 ； 銦錫氧化物奈米柱

並列摘要

The influence of indium-tin-oxide nanorods on the polymer light-emitting diodes was investigated in this work. The indium-tin-oxide film was etched into nanorods by a newly developed chemical etching method. By controlling the etching time, proper nanorod morphology and spacing between nanorods can be obtained. The hole transport layer can be filled into all the gaps between nanorods through controlling the spin coating speed properly. Our experimental results demonstrated that the indium-tin-oxide nanorods possess excellent optical properties suitable for light-emitting diodes, such as the high transmittance and light scattering. The polymer light-emitting diodes fabricated on ITO nanorods shown superior luminance and current efficiency, which were attributed to the high transmittance of the indium-tin-oxide nanorods.

並列關鍵字

OLED ； indium-tin-oxide nanorod

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