DataVXJournal of Photonics for EnergyPaper
journal article·2015-02-19

Luminous efficiency enhancement of white light-emitting diodes by using a hybrid phosphor structure

Bing-Cheng Lin, Jhih-Kai Huang, Kuo-Ju Chen, Sheng-Huan Chiu, Zong-Yi Tu, Chien-Chung Lin, Po-Tsung Lee, Min-Hsiung Shih, Mei-Tan Wang, Jung-Min Hwang, Hao-Chung Kuo

Journal of Photonics for Energy· Volume 5· Issue 1
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Source abstract

Abstract

This paper presents a “hybrid” structure for the coating of yellow YAG∶Ce3+ phosphor on blue GaN-based light-emitting diodes (LEDs). The luminous efficiency of the hybrid phosphor structure improved by 5.9% and 11.7%, compared with the conventional remote and conformal phosphor structures, respectively, because of the increased intensity of the yellow component. The hybrid structure also has an advantage in the phosphor usage reduction for the LEDs. Furthermore, the electric intensity of the hybrid phosphor structure was calculated for various thicknesses by conducting TFCalc32 simulation, and the enhanced utilization of blue rays was verified. Finally, the experimental results were consistent with the simulation results performed using the Monte-Carlo method.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: GaN-based semiconductor devices and materials · Gas Sensing Nanomaterials and Sensors · Luminescence Properties of Advanced Materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

National Chiao Tung University, Institute of Electro-Optical Engineering, Department of Photonics, No. 1001, University Road, Hsinchu 30010, Taiwan

National Chiao Tung University, Institute of Photonics System, No. 301, Gaofa 3rd Road, Guiren District, Tainan 71150, Taiwan

Academia Sinica, Research Center for Applied Sciences, No. 128 Academia Road, Sec. 2, Nankang, Taipei 115, TaiwandIndustrial Technology Research Institute, Green Energy and Environment Research Laboratories, 195, Sec. 4, Chung Hsing Road, Chutung, Hsinchu

National Sun Yat-sen University, Department of Photonics, 70 Lienhai Road, Kaohsiung 80424, Taiwan

References

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