Aluminum nitride coatings using response surface methodology to optimize the thermal dissipated performance of light-emitting diode modules
| Autor: | Peng-Da Lei, Cheng-Wu Liu, Ming-Der Jean, Ling-Hua Kong |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
020209 energy Wide-bandgap semiconductor General Physics and Astronomy 02 engineering and technology Nitride Heat sink engineering.material 021001 nanoscience & nanotechnology lcsh:QC1-999 law.invention X-ray photoelectron spectroscopy Coating law visual_art 0202 electrical engineering electronic engineering information engineering visual_art.visual_art_medium engineering Junction temperature Ceramic Composite material 0210 nano-technology lcsh:Physics Light-emitting diode |
| Zdroj: | AIP Advances, Vol 8, Iss 5, Pp 055106-055106-12 (2018) |
| ISSN: | 2158-3226 |
| DOI: | 10.1063/1.5021816 |
| Popis: | This study optimizes the thermal dissipation ability of aluminum nitride (AlN) ceramics to increase the thermal performance of light-emitting diode (LED) modulus. AlN powders are deposited on heat sink as a heat interface material, using an electrostatic spraying process. The junction temperature of the heat sink is developed by response surface methodology based on Taguchi methods. In addition, the structure and properties of the AlN coating are examined using X-ray photoelectron spectroscopy (XPS). In the XPS analysis, the AlN sub-peaks are observed at 72.79 eV for Al2p and 398.88 eV for N1s, and an N1s sub-peak is assigned to N-O at 398.60eV and Al–N bonding at 395.95eV, which allows good thermal properties. The results have shown that the use of AlN ceramic material on a heat sink can enhance the thermal performance of LED modules. In addition, the percentage error between the predicted and experimental results compared the quadric model with between the linear and he interaction models was found to be within 7.89%, indicating that it was a good predictor. Accordingly, RSM can effectively enhance the thermal performance of an LED, and the beneficial heat dissipation effects for AlN are improved by electrostatic spraying. |
| Databáze: | OpenAIRE |
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