Fabrication and characterization of gan-based blue light-emitting diode with electrodes formed by screen printing

被引:0
作者
Shigemune, Tasuku [1 ]
Koizumi, Atsushi [1 ]
Kashiwagi, Yukiyasu [2 ]
Kakiuchi, Hiroshi [3 ]
Takemura, Yasutaka [4 ]
Furuta, Shinya [5 ]
Yamamoto, Mari [2 ]
Saitoh, Masashi [2 ]
Takahashi, Masanari [2 ]
Ohno, Toshinobu [2 ]
Nakamoto, Masami [2 ]
Aoyagi, Nobuyoshi [3 ]
Yoshida, Yukio [3 ]
Murahashi, Koichiro [4 ]
Otsuka, Kuniaki [4 ]
Fujiwara, Yasufumi [1 ]
机构
[1] Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka Univ, Yamadaoka, Suita
[2] Osaka Municipal Technical Research Institute, Joto-ku, Osaka
[3] Daiken Chemical Co., Ltd, Joto-ku, Osaka
[4] Okuno Chemical Industries Co., Ltd, Tsurumi-ku, Osaka
[5] Tomoe Works Co., Ltd, Minato-ku, Osaka
关键词
GaN; LED; Nanoparticle paste; Printed electronics;
D O I
10.2472/jsms.64.414
中图分类号
学科分类号
摘要
We fabricated Ag electrodes on GaN-based blue light-emitting diodes (LEDs) by direct screen printing with Ag nanoparticle paste instead of commonly used dry processes. After the direct screen printing of Ag nanoparticle pastes on p-type GaN, successive sintering was carried out at 450°C for 30 min. LEDs with a square electrode size of 0.5 mm showed a threshold and operating voltage of 3.3 and 4.4 V, respectively. The maximum emission efficiency was obtained at 13 mA. These results suggest that screen printed Ag electrodes have a potential for use in GaN-based blue LEDs. © 2015 The Society of Materials Science, Japan.
引用
收藏
页码:414 / 416
页数:2
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