Comparative Study of High-Power White LED’s Lifetime Based on Temperature Accelerated Test

Shi Wei; Nian Yu Zou; Yun Cui Zhang; De Sheng Li

doi:10.4028/www.scientific.net/AMR.936.1985

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 936Comparative Study of High-Power White LED’s...

Comparative Study of High-Power White LED’s Lifetime Based on Temperature Accelerated Test

Abstract:

The lifetimes of two white high-power LEDs were studied based temperature-acceleration life test. the acceleration temperatures were selected as 100°C and 90°C separately in the experiment, and the accelerated time was 800 hours. Based on Arrhenius model, activation energy of the two tested samples are 0.6978 and 0.7014 separately, and lifetime are7.41×10⁵h and 1.46×10⁵h separately. Our experimental results showed that the quality of the two type LEDs is very different, and lifetime of 50000 hours is recommended as the threshold of entering the market for high power white LEDs.

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Advanced Materials Research (Volume 936)

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1985-1988

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https://doi.org/10.4028/www.scientific.net/AMR.936.1985

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June 2014

Authors:

Shi Wei, Nian Yu Zou, Yun Cui Zhang, De Sheng Li*

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Arrhenius Model, LED, Lifetime, Temperature

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References

[1] Hao Luoxi, Yang Xiu. Innovation and Tendency of LED Lighting Based on LED's Feature [J]. China Illuminating Engineering Journal, 2012, 23(1): 1-6 (in Chinese).

Google Scholar

[2] Li Desheng, Zou Nianyu, He Xiaoyang, et al. Accelerated life test on white LEDs based on flux degradation and color temperature drift [J]. ICIC Express Letters, 2012, 6 (9): 2389-2393.

Google Scholar

[3] S. Koh, W.D. vanDriel, Cadmus Yuan, et al. Solid State Lighting System Reliability. [C]. Proceeding ChinaSSL 2011, pp.121-126.

Google Scholar

[4] E. Suhir. Accelerated Life Testing in Photonics Packaging: Its Objectives, Role, Attributes, Challenges, Pitfalls, Predictive Models, and Interaction with Other Accelerated Stress Categories. Laser Diodes, Optoelectronic Devices, and Heterogenous Integration, 2003, 175-196.

DOI: 10.1117/12.476691

Google Scholar

[5] W. Y. Ho, Charles Surya, et al. Studies of High DC Current Induced Degradation in Ⅲ-Ⅴ Nitride Based Heterojunctions. IEEE Trans on Electron Devices, 2000, 47(7): 1421-1425.

DOI: 10.1109/16.848286

Google Scholar

[6] Li Desheng, Zou Lin, Zhang Yuncui, et al. Evaluation of reliability for LED lamp based on fuzzy algorithm [J]. Optics and Precision Engineering, 2012, 20(12): 2661-2666 (in Chinese).

Google Scholar

[7] G. Meneghesso, S. Levada, E. Zanooonnni, et al. Failure Modes and Mechanisms of DC-Aged GaN LEDs [J]. Phys. Stat. sol. 2002, 194(2): 389-392.

DOI: 10.1002/1521-396x(200212)194:2<389::aid-pssa389>3.0.co;2-o

Google Scholar

[8] Gao Jinhuan , PengHao , Wu Hongyu, et al. Evaluation of Power LED Operation Life. [J]. Semiconductor Technology, 2009, 34(5): 452-457. (in Chinese).

Google Scholar