Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals
We demonstrated a technique requiring little phosphor that used white light-emitting diodes (WLEDs) containing composite silica colloidal photonic crystals (c-SCPhCs) for developing the warm-WLEDs (w-WLEDs). WLEDs containing c-SCPhCs enhanced luminous efficacy 5.6% more than commercial w-WLEDs did....
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | International Journal of Photoenergy |
| Online Access: | http://dx.doi.org/10.1155/2014/846940 |
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| author | Chun-Feng Lai Yu-Chun Lee Tzong-Liang Tsai Chung-Chieh Chang Mau-Kuen Wu |
| author_facet | Chun-Feng Lai Yu-Chun Lee Tzong-Liang Tsai Chung-Chieh Chang Mau-Kuen Wu |
| author_sort | Chun-Feng Lai |
| collection | DOAJ |
| description | We demonstrated a technique requiring little phosphor that used white light-emitting diodes (WLEDs) containing composite silica colloidal photonic crystals (c-SCPhCs) for developing the warm-WLEDs (w-WLEDs). WLEDs containing c-SCPhCs enhanced luminous efficacy 5.6% more than commercial w-WLEDs did. We used a UV adhesive curing method to improve the adhesion properties of the c-SCPhCs. A reliability analysis (RA) test was performed on the WLEDs containing c-SCPhCs, applying a high temperature and high relative humidity (85°C/85 RH) during WLEDs operation at 120 mA. During a RA test of 2500 h, no visible degradation in optical performance was observed. We implemented a novel, inexpensive technique for producing high luminous flux w-WLEDs that can be used in residential light. |
| format | Article |
| id | doaj-art-a0bfb05312cd46239eef5e109bce6f3b |
| institution | Kabale University |
| issn | 1110-662X 1687-529X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Photoenergy |
| spelling | doaj-art-a0bfb05312cd46239eef5e109bce6f3b2025-02-03T01:31:11ZengWileyInternational Journal of Photoenergy1110-662X1687-529X2014-01-01201410.1155/2014/846940846940Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic CrystalsChun-Feng Lai0Yu-Chun Lee1Tzong-Liang Tsai2Chung-Chieh Chang3Mau-Kuen Wu4Department of Photonics, Feng Chia University, 100 Wenhwa Road, Seatwen, Taichung 40724, TaiwanLextar Electronics Corp., No. 3, Gongye E. 3rd Road, Hsinchu Science Park, Hsinchu 30075, TaiwanLextar Electronics Corp., No. 3, Gongye E. 3rd Road, Hsinchu Science Park, Hsinchu 30075, TaiwanInstitute of Physics, Academia Sinica, Nankang, Taipei 11529, TaiwanInstitute of Physics, Academia Sinica, Nankang, Taipei 11529, TaiwanWe demonstrated a technique requiring little phosphor that used white light-emitting diodes (WLEDs) containing composite silica colloidal photonic crystals (c-SCPhCs) for developing the warm-WLEDs (w-WLEDs). WLEDs containing c-SCPhCs enhanced luminous efficacy 5.6% more than commercial w-WLEDs did. We used a UV adhesive curing method to improve the adhesion properties of the c-SCPhCs. A reliability analysis (RA) test was performed on the WLEDs containing c-SCPhCs, applying a high temperature and high relative humidity (85°C/85 RH) during WLEDs operation at 120 mA. During a RA test of 2500 h, no visible degradation in optical performance was observed. We implemented a novel, inexpensive technique for producing high luminous flux w-WLEDs that can be used in residential light.http://dx.doi.org/10.1155/2014/846940 |
| spellingShingle | Chun-Feng Lai Yu-Chun Lee Tzong-Liang Tsai Chung-Chieh Chang Mau-Kuen Wu Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals International Journal of Photoenergy |
| title | Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals |
| title_full | Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals |
| title_fullStr | Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals |
| title_full_unstemmed | Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals |
| title_short | Highly Reliable and Low-Cost Fabrication of Warm-White LEDs Using Composite Silica Photonic Crystals |
| title_sort | highly reliable and low cost fabrication of warm white leds using composite silica photonic crystals |
| url | http://dx.doi.org/10.1155/2014/846940 |
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