Realization of Broad-Spectrum Using Chirped Multi-Quantum Well Structures in AlGaInP-Based Light-Emitting Diodes
| Autor: | Jin Soo So, Hyung Joo Lee, Jun-Beom Park, Tak Jeong, Hwa Sub Oh, Jong-Min Park, Seonghoon Jeong, Kyung Nam Jeon |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
business.industry Biomedical Engineering Bioengineering General Chemistry Carrier leakage Electroluminescence Condensed Matter Physics law.invention Power (physics) Broad spectrum law Optoelectronics General Materials Science business Realization (systems) Quantum well Light-emitting diode |
| Zdroj: | Journal of Nanoscience and Nanotechnology. 21:3824-3828 |
| ISSN: | 1533-4880 |
| DOI: | 10.1166/jnn.2021.19215 |
| Popis: | We studied broad-spectrum light emitting diodes appropriate for special lighting applications in terms of their optical behaviors and device performances according to the chirped multi-quantum well structures. As the well thickness from 1 st to 3rd well was changed from 6 nm to 15 nm and repeated three times, the electroluminescent spectrum was broadened by 65% and the light output power was increased by 8% in comparison to light emitting diodes having conventional multi-quantum well structures. In the case of the chirped multi-quantum well structures having sequentially decreasing the well thickness from 15 nm to 6 nm and repeating three times, the optical output power was decreased by 5% due to the carrier leakage out of the active region. |
| Databáze: | OpenAIRE |
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