Silver nanowires for transparent conductive electrode to GaN-based light-emitting diodes

被引：31

作者：

Jeong, Gyu-Jae ^{[1
]}

Lee, Jae-Hwan ^{[1
]}

Han, Sang-Hyun ^{[1
]}

Jin, Won-Yong ^{[2
]}

Kang, Jae-Wook ^{[2
]}

Lee, Sung-Nam ^{[1
]}

机构：

[1] Korea Polytech Univ, Dept Nanoopt Engn, Shihung 429793, South Korea

[2] Chonbuk Natl Univ, Dept Flexible & Printable Elect, Polymer Mat Fus Res Ctr, Jeonju 561756, South Korea

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

CARBON NANOTUBE; GRAPHENE; DEVICES; FILMS;

D O I：

10.1063/1.4906459

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Transparent, conductive, and uniform Ag nanowires (NWs) were introduced to improve the optical performance of GaN-based light-emitting diodes (LEDs) by a spin-coating technique. The Ag NWs acted as a current spreading layer, exhibiting high transmittance and low sheet resistance, and ultimately leading to high performance GaN-based LEDs with an ultra large size of 5 x 5 mm(2). Compared to the transmittance of conventional LEDs without Ag NWs, the relative transmittance of LEDs with Ag NWs was approximately 90% of the overall wavelength region. However, the electroluminescence (EL) intensity of LED with Ag NWs was much higher than that of conventional LEDs without Ag NWs for injection current above 45 mA. In addition, the EL full width at half maximum of LEDs with Ag NWs was much lower than that of conventional LEDs without Ag NWs. Based on these results, we believe that the enhanced optical performance of ultra large LEDs was due to an increase in the current spreading effect. (C) 2015 AIP Publishing LLC.

引用

页数：4

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