Visible Flip-Chip Light-Emitting Diodes on Flexible Ceramic Substrate With Improved Thermal Management
| Autor: | Kathy Olenick, Shahab Shervin, Keon Hwa Lee, Dong Kyu Lee, Jae-Hyun Ryou, Joon Seop Kwak, John A. Olenick, Shivkant Singh, Venkat Venkateswaran, Anastassios Mavrokefalos, Seung Kyu Oh, Sung-Nam Lee, Seung-Hwan Kim, Mojtaba Asadirad |
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| Rok vydání: | 2016 |
| Předmět: |
010302 applied physics
Materials science business.industry 02 engineering and technology Substrate (electronics) 021001 nanoscience & nanotechnology 01 natural sciences Electronic Optical and Magnetic Materials law.invention law Flexible display visual_art 0103 physical sciences visual_art.visual_art_medium Optoelectronics Ceramic Electrical and Electronic Engineering 0210 nano-technology business Flip chip Polyimide Yttria-stabilized zirconia Light-emitting diode Diode |
| Zdroj: | IEEE Electron Device Letters. 37:615-617 |
| ISSN: | 1558-0563 0741-3106 |
| DOI: | 10.1109/led.2016.2547877 |
| Popis: | We demonstrate flip-chip light-emitting diodes (FC-LEDs) on a flexible yttria-stabilized zirconia (YSZ) substrate and compare them with FC-LEDs on a polymeric substrate. Degradation of luminescence intensity and red-shift of peak wavelength are not observed for the LED on the flexible YSZ, unlike one on the polyimide substrate, due to improved capability to remove the generated heat from the chip to the substrate. Thermal distribution measurements and finite-element simulations show improved thermal management by the flexible ceramic as compared with previously developed flexible LEDs on polymeric substrates. The results present an improved solution to high power operation of flexible LEDs. |
| Databáze: | OpenAIRE |
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