Loading...
Please wait, while we are loading the content...
Similar Documents
High optical power and low-efficiency droop blue light-emitting diodes using compositionally step-graded InGaN barrier
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pan, Chih Chien Yan, Qimin Fu, Houqiang Zhao, Yuji Wu, Yuh-Renn Walle, Chris G. Van De Nakamura, Shuji Baars, Steven Den |
| Copyright Year | 2015 |
| Abstract | A compositionally step-graded (CSG) InGaN barrier is designed for the active region of c-plane blue light-emitting diodes (LEDs). High external quantum efficiencies of 45, 42, 39 and 36% are achieved at current densities of 100, 200, 300 and 400 A/cm2, respectively. Compared with GaN barrier devices, LEDs with CSG InGaN barriers showed higher power, lower operating voltage and smaller wavelength blueshift, compared with GaN barrier LEDs. Owing to the low-voltage performance, higher wall-plug efficiency can be achieved for blue LEDs with CSG InGaN barriers. |
| Starting Page | 1187 |
| Ending Page | 1189 |
| Page Count | 3 |
| File Format | PDF HTM / HTML |
| DOI | 10.1049/el.2015.1647 |
| Volume Number | 51 |
| Alternate Webpage(s) | http://faculty.engineering.asu.edu/zhao/wp-content/uploads/2014/08/2015-EL-Pan-et-al.pdf |
| Alternate Webpage(s) | https://doi.org/10.1049/el.2015.1647 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
