Light output power enhancement of GaN-based vertical light emitting diodes via fabricating surface nanorod arrays

C. H. Chiu, Hao-Chung Kuo, Tien-chang Lu, S. C. Wang, W. L. Kuo, C. S. Hsiao, San-Yuan Chen

研究成果: Conference contribution同行評審

摘要

In this research, we demonstrated two approaches to fabricate nanorod arrays on the surface of GaN-based vertical light emitting diodes (VLEDs). The first approach was via synthesizing singlecrystal ZnO nanorod arrays in aqueous solution at room temperature. The light output intensity and wall-plug efficiency of the GaN-based VLEDs with the ZnO nanorod arrays shows 38.9 and 41.2% increases, respectively, at 200 mA current injections compared to that of a VLED without ZnO nanorod arrays. The second approach was formed by spinning nano silica spheres and inductively coupled plasma-reactive ion etching. The light output power of the VLEDs with the dry etched nanorod arrays showed about 40% enhancement than that without the nanorod arrays. The large enhancement of VLED with both ZnO or GaN nanorod arrays was mainly due to the total internal reflection destruction, and the gradually changed refractive index from the nanorod arrays layer.

原文English
主出版物標題ECS Transactions - State-of-the-Art Program on Compound Semiconductors 49 (SOTAPOCS 49) -and- Nitrides and Wide-Bandgap Semiconductors for Sensors, Photonics, and Electronics 9
頁面117-122
頁數6
版本7
DOIs
出版狀態Published - 1 12月 2008
事件State-of-the-Art Program on Compound Semiconductors 49 (SOTAPOCS 49) -and- Nitrides and Wide-Bandgap Semiconductors for Sensors, Photonics, and Electronics 9 - 214th ECS Meeting - Honolulu, HI, United States
持續時間: 12 10月 200817 10月 2008

出版系列

名字ECS Transactions
號碼7
16
ISSN(列印)1938-5862
ISSN(電子)1938-6737

Conference

ConferenceState-of-the-Art Program on Compound Semiconductors 49 (SOTAPOCS 49) -and- Nitrides and Wide-Bandgap Semiconductors for Sensors, Photonics, and Electronics 9 - 214th ECS Meeting
國家/地區United States
城市Honolulu, HI
期間12/10/0817/10/08

指紋

深入研究「Light output power enhancement of GaN-based vertical light emitting diodes via fabricating surface nanorod arrays」主題。共同形成了獨特的指紋。

引用此