| Autor: |
Ya-Ju Lee, Zu-Po Yang, Fang-Yuh Lo, Jhih-Jhong Siao, Zhong-Han Xie, Yi-Lun Chuang, Tai-Yuan Lin, Jinn-Kong Sheu |
| Jazyk: |
angličtina |
| Rok vydání: |
2014 |
| Předmět: |
|
| Zdroj: |
APL Materials, Vol 2, Iss 5, Pp 056101-056101-7 (2014) |
| Druh dokumentu: |
article |
| ISSN: |
2166-532X |
| DOI: |
10.1063/1.4874455 |
| Popis: |
High-efficient ZnO-based nanorod array light-emitting diodes (LEDs) were grown by an oblique-angle deposition scheme. Due to the shadowing effect, the inclined ZnO vapor-flow was selectively deposited on the tip surfaces of pre-fabricated p-GaN nanorod arrays, resulting in the formation of nanosized heterojunctions. The LED architecture composed of the slanted n-ZnO film on p-GaN nanorod arrays exhibits a well-behaving current rectification of junction diode with low turn-on voltage of 4.7 V, and stably emits bluish-white luminescence with dominant peak of 390 nm under the operation of forward injection currents. In general, as the device fabrication does not involve passivation of using a polymer or sophisticated material growth techniques, the revealed scheme might be readily applied on other kinds of nanoscale optoelectronic devices. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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