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Journal articles on the topic 'Impulse light emitting diode'

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Author: Grafiati

Published: 30 May 2022

Last updated: 31 May 2022

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1

Miranda-Vega, Jesús E., Moisés Rivas-López, Wendy Flores-Fuentes, Oleg Sergiyenko, Lars Lindner, and Julio C. Rodríguez-Quiñonez. "Implementación digital de filtros FIR para la minimización del ruido óptico y optoelectrónico de un sistema de barrido óptico." Revista Iberoamericana de Automática e Informática industrial 16, no. 3 (June 12, 2019): 344. http://dx.doi.org/10.4995/riai.2019.10210.

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<p>Existen distintos dispositivos capaces de discriminar el ruido óptico y optoelectrónico, sin embargo, el costo de su implementación y mantenimiento resulta costoso. Este trabajo examina la posibilidad de integrar digitalmente filtros de respuesta finita al impulso (en inglés, FIR; Finite Impulse Response) al transductor de un sistema OSS para obtener un mejor rendimiento en un ambiente real de operación. En este trabajo se propone la evaluación de la implementación de distintos filtros FIR en diferentes transductores fotosensores como lo son el resistor dependiente de luz (en inglés, LDR; Light-Dependent Resistor) y el diodo emisor de luz (en inglés, LED; Light-Emitting Diode).</p>

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2

Jargus, Vitasek, Nedoma, Vasinek, and Martinek. "Effect of Selected Luminescent Layers on CCT, CRI, and Response Times." Materials 12, no. 13 (June 28, 2019): 2095. http://dx.doi.org/10.3390/ma12132095.

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Phosphors have been used as wavelength converters in illumination for many years. When it is excited with blue light, the frequently used yttrium aluminium garnet doped with cerium (YAG:Ce) phosphor converts a part of blue light to a wideband yellow light, resulting in the generated light having a white color. By combining an appropriate concentration of the YAG:Ce phosphor and blue excitant light, white light of a desired correlated color temperature (CCT) can be obtained. However, this type of illumination has a lower color rendering index value (CRI). In an attempt to improve the CRI value, we mixed the YAG:Ce phosphor with europium-doped calcium sulfide phosphor (CaS:Eu), which resulted in a considerably increased CRI value. This article examines an experiment with luminescent layers consisting of a mixture of selected phosphors and polydimethylsiloxane (PDMS). Different thicknesses in these layers were achieved by changing the speed of rotation during their accumulation onto laboratory glass using the method of spin coating. The spectral characteristics of these luminescent layers as they were excited with blue light emitting diode (LED) and laser diode (LD) were then determined. A suitable combination of the YAG:Ce phosphor with a phosphor containing europium, as it was excited with a blue LED, yielded a source of white light with a CRI value of greater than 85. The response time in the tested luminescent layers to a rectangular excitant impulse (generated by a signal generator and transmitted by LD) was also measured in order to examine their potential use in visible light communications (VLC).

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3

Mohsin Mijwil, Maad. "High speed transmission of signal level for white light emitting diode (LED) as a transmitter device by using modified phase equalization." Indonesian Journal of Electrical Engineering and Computer Science 17, no. 3 (March 1, 2020): 1348. http://dx.doi.org/10.11591/ijeecs.v17.i3.pp1348-1354.

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Visible light communication (VLC) also known as "Li-Fi", uses standard LEDs to transmit data such as information, images, music, and videos. The first LED was developed in 1927 by Oleg Vladimírovich Lósev (1903-1942), however it was not used in the industry until the 1960s.In this paper, will describe the implementation of Modified Phase Equalization (MPH) on visible white LED lamps signal because it's has slow transition time that severely limits in the communication system data speeds with phase equalization that increases the bandwidth of the LED modulation. Employ two filters with Modified Phase Equalization: first, Complementary (C) filter to combine between all kinds moving signals and second, finite impulse response (FIR) filter to obtain all coefficients that respective. Implementation in two phases: first, frequency 150KHz with number of signals 15000 signals and second, doubling frequency 300KHz with number of signals 30000 signals of LEDs without losing their main functionality as illumination sources.

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4

Irshad, Liu, Arshad, Sohail, Murthy, Khokhar, and Uba. "A Novel Localization Technique Using Luminous Flux." Applied Sciences 9, no. 23 (November 21, 2019): 5027. http://dx.doi.org/10.3390/app9235027.

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As global navigation satellite system (GNNS) signals are unable to enter indoor spaces, substitute methods such as indoor localization-based visible light communication (VLC) are gaining the attention of researchers. In this paper, the systematic investigation of a VLC channel is performed for both direct and indirect line of sight (LoS) by utilizing the impulse response of indoor optical wireless channels. In order to examine the localization scenario, two light-emitting diode (LED) grid patterns are used. The received signal strength (RSS) is observed based on the positional dilution of precision (PDoP), a subset of the dilution of precision (DoP) used in global navigation satellite system (GNSS) positioning. In total, 31 × 31 possible positional tags are set for a given PDoP configuration. The values for positional error in terms of root mean square error (RMSE) and the sum of squared errors (SSE) are taken into consideration. The performance of the proposed approach is validated by simulation results according to the selected indoor space. The results show that the position accuracy enhanced is at short range by 24% by utilizing the PDoP metric. As confirmation, the modeled accuracy is compared with perceived accuracy results. This study determines the application and design of future optical wireless systems specifically for indoor localization.

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5

Thoai, Vo Phu, and Nguyen Doan Quoc Anh. "Excellent Luminous Efficacy and Color Homogeneity of White Light-Emitting Diodes with YPO4:Ce3+:Tb3+ Phosphor." E3S Web of Conferences 72 (2018): 02002. http://dx.doi.org/10.1051/e3sconf/20187202002.

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In this paper, we focus on researching the method, which the color homogeneity and the lumen output of multi-chip white LED lamps (MCW-LEDs) need to support for increasing the efficiency. The successful results can be achieved by mixing the green YPO4:Ce3+:Tb3+ phosphor with their phosphor compounding. Through experiment results, we assert that the MCW-LEDs can achieve the significant consequence in performance by following that method and it is also again confirmed that when the concentration of YPO4:Ce3+:Tb3+ has tendency to increase, which impulse the development of the color uniformity and the luminous efficacy of MCW-LEDs with average correlated color temperatures (CCT) of 8500 K, while the color quality scale shows signs of gradual decline. It is not difficult to gain incredible presentation of MCW-LEDs if we are clever in choosing the suitable concentration and size of YPO4:Ce3+:Tb3+.

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6

Malykhina, Galina, Dmitry Tarkhov, Viacheslav Shkodyrev, and Tatiana Lazovskaya. "Intelligent LED Certification System in Mass Production." Sensors 21, no. 8 (April 20, 2021): 2891. http://dx.doi.org/10.3390/s21082891.

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It is impossible to effectively use light-emitting diodes (LEDs) in medicine and telecommunication systems without knowing their main characteristics, the most important of them being efficiency. Reliable measurement of LED efficiency holds particular significance for mass production automation. The method for measuring LED efficiency consists in comparing two cooling curves of the LED crystal obtained after exposure to short current pulses of positive and negative polarities. The measurement results are adversely affected by noise in the electrical measuring circuit. The widely used instrumental noise suppression filters, as well as classical digital infinite impulse response (IIR), finite impulse response (FIR) filters, and adaptive filters fail to yield satisfactory results. Unlike adaptive filters, blind methods do not require a special reference signal, which makes them more promising for removing noise and reconstructing the waveform when measuring the efficiency of LEDs. The article suggests a method for sequential blind signal extraction based on a cascading neural network. Statistical analysis of signal and noise values has revealed that the signal and the noise have different forms of the probability density function (PDF). Therefore, it is preferable to use high-order statistical moments characterizing the shape of the PDF for signal extraction. Generalized statistical moments were used as an objective function for optimization of neural network parameters, namely, generalized skewness and generalized kurtosis. The order of the generalized moments was chosen according to the criterion of the maximum Mahalanobis distance. The proposed method has made it possible to implement a multi-temporal comparison of the crystal cooling curves for measuring LED efficiency.

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7

Bolt, Thomas. "Light Emitting Diode." Yale Review 93, no. 4 (July 2005): 139–40. http://dx.doi.org/10.1111/j.0044-0124.2005.00963.x.

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8

Bando, Kanji. "Light Emitting Diode." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 85, no. 1 (2001): 22–24. http://dx.doi.org/10.2150/jieij1980.85.1_22.

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9

Zeghioud, Hichem, Aymen Assadi, Nabila Khellaf, Hayet Djelal, Abdeltif Amrane, and Sami Rtimi. "Photocatalytic Performance of CuxO/TiO2 Deposited by HiPIMS on Polyester under Visible Light LEDs: Oxidants, Ions Effect, and Reactive Oxygen Species Investigation." Materials 12, no. 3 (January 29, 2019): 412. http://dx.doi.org/10.3390/ma12030412.

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In the present study, we propose a new photocatalytic interface prepared by high-power impulse magnetron sputtering (HiPIMS), and investigated for the degradation of Reactive Green 12 (RG12) as target contaminant under visible light light-emitting diodes (LEDs) illumination. The CuxO/TiO2 nanoparticulate photocatalyst was sequentially sputtered on polyester (PES). The photocatalyst formulation was optimized by investigating the effect of different parameters such as the sputtering time of CuxO, the applied current, and the deposition mode (direct current magnetron sputtering, DCMS or HiPIMS). The results showed that the fastest RG12 degradation was obtained on CuxO/TiO2 sample prepared at 40 A in HiPIMS mode. The better discoloration efficiency of 53.4% within 360 min was found in 4 mg/L of RG12 initial concentration and 0.05% Cuwt/PESwt as determined by X-ray fluorescence. All the prepared samples contained a TiO2 under-layer with 0.02% Tiwt/PESwt. By transmission electron microscopy (TEM), both layers were seen uniformly distributed on the PES fibers. The effect of the surface area to volume (dye volume) ratio (SA/V) on the photocatalytic efficiency was also investigated for the discoloration of 4 mg/L RG12. The effect of the presence of different chemicals (scavengers, oxidant or mineral pollution or salts) in the photocatalytic medium was studied. The optimization of the amount of added hydrogen peroxide (H2O2) and potassium persulfate (K2S2O8) was also investigated in detail. Both, H2O2 and K2S2O8 drastically affected the discoloration efficiency up to 7 and 6 times in reaction rate constants, respectively. Nevertheless, the presence of Cu (metallic nanoparticles) and NaCl salt inhibited the reaction rate of RG12 discoloration by about 4 and 2 times, respectively. Moreover, the systematic study of reactive oxygen species’ (ROS) contribution was also explored with the help of iso-propanol, methanol, and potassium dichromate as •OH radicals, holes (h+), and superoxide ion-scavengers, respectively. Scavenging results showed that O2− played a primary role in RG12 removal; however, •OH radicals’ and photo-generated holes’ (h+) contributions were minimal. The CuxO/TiO2 photocatalyst was found to have a good reusability and stability up to 21 cycles. Ions’ release was quantified by means of inductively coupled plasma mass spectrometry (ICP-MS) showing low Cu-ions’ release.

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10

Lee, Ming-Kwei, Min-Yen Yeh, Hon-Da Huang, and Chih-Wei Hong. "Blue Light Emitting Diode." Japanese Journal of Applied Physics 34, Part 1, No. 7A (July 15, 1995): 3543–45. http://dx.doi.org/10.1143/jjap.34.3543.

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11

Chen Jiule, 陈久乐, 钟建 Zhong Jian, and 高娟 Gao Juan. "Alternated red-emitting organic light-emitting diode." High Power Laser and Particle Beams 24, no. 7 (2012): 1633–37. http://dx.doi.org/10.3788/hplpb20122407.1633.

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12

Suehiro, Y., T. Sato, and S. Yamazaki. "Reflector type light emitting diode." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 79, Appendix (1995): 101. http://dx.doi.org/10.2150/jieij1980.79.appendix_101.

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13

Dasgupta, Purnendu K., In-Yong Eom, Kavin J. Morris, and Jianzhong Li. "Light emitting diode-based detectors." Analytica Chimica Acta 500, no. 1-2 (December 2003): 337–64. http://dx.doi.org/10.1016/s0003-2670(03)00575-0.

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14

Jia, D., and D. N. Hunter. "Long persistent light emitting diode." Journal of Applied Physics 100, no. 11 (2006): 113125. http://dx.doi.org/10.1063/1.2400091.

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15

Johnson, David A. "Demonstrating the light‐emitting diode." American Journal of Physics 63, no. 8 (August 1995): 761–62. http://dx.doi.org/10.1119/1.17854.

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16

Schubert, E. F., Y. ‐H Wang, A. Y. Cho, L. ‐W Tu, and G. J. Zydzik. "Resonant cavity light‐emitting diode." Applied Physics Letters 60, no. 8 (February 24, 1992): 921–23. http://dx.doi.org/10.1063/1.106489.

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17

Salter, C. L., R. M. Stevenson, I. Farrer, C. A. Nicoll, D. A. Ritchie, and A. J. Shields. "An entangled-light-emitting diode." Nature 465, no. 7298 (June 2010): 594–97. http://dx.doi.org/10.1038/nature09078.

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18

Kuvaldin, É. V., and A. A. Shul’ga. "Pulsed light-emitting diode emitter." Journal of Optical Technology 84, no. 9 (September 1, 2017): 647. http://dx.doi.org/10.1364/jot.84.000647.

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19

Zwiller, Val. "A spooky light-emitting diode." Nature Photonics 4, no. 8 (August 2010): 508–9. http://dx.doi.org/10.1038/nphoton.2010.183.

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20

Könenkamp, R., Robert C. Word, and C. Schlegel. "Vertical nanowire light-emitting diode." Applied Physics Letters 85, no. 24 (December 13, 2004): 6004–6. http://dx.doi.org/10.1063/1.1836873.

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21

Kabe, Ryota, Naoto Notsuka, Kou Yoshida, and Chihaya Adachi. "Afterglow Organic Light-Emitting Diode." Advanced Materials 28, no. 4 (November 24, 2015): 655–60. http://dx.doi.org/10.1002/adma.201504321.

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22

William, Abramovits, Arrazola Peter, and Gupta Aditya K. "Light‐Emitting Diode‐Based Therapy." SKINmed: Dermatology for the Clinician 4, no. 1 (January 2005): 38–41. http://dx.doi.org/10.1111/j.1540-9740.2005.03959.x.

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23

Saito, S., K. Oda, T. Takahama, K. Tani, and T. Mine. "Germanium fin light-emitting diode." Applied Physics Letters 99, no. 24 (December 12, 2011): 241105. http://dx.doi.org/10.1063/1.3670053.

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24

Krasnov, A. N., Yu N. Purtov, Yu F. Vaksman, and V. V. Serdyuk. "ZnSe blue-light-emitting diode." Journal of Crystal Growth 125, no. 1-2 (November 1992): 373–74. http://dx.doi.org/10.1016/0022-0248(92)90350-r.

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25

Su, Kang, Jing Li, Chang Ge, Xing-Dong Lu, Zhi-Cong Li, Guo-Hong Wang, and Jin-Min Li. "Stackable luminescent device integrating blue light emitting diode with red organic light emitting diode." Chinese Physics B 29, no. 4 (April 2020): 048504. http://dx.doi.org/10.1088/1674-1056/ab77ff.

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26

Shi, Zheng, Qinyan Zhou, Shuyu Ni, Hongbo Zhu, and Yongjin Wang. "Light-responsive vertical-structure light-emitting diode." Semiconductor Science and Technology 35, no. 4 (March 19, 2020): 045025. http://dx.doi.org/10.1088/1361-6641/ab760d.

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27

Hayes, Clinton J., Kerry B. Walsh, and Colin V. Greensill. "Light-emitting diodes as light sources for spectroscopy: Sensitivity to temperature." Journal of Near Infrared Spectroscopy 25, no. 6 (October 10, 2017): 416–22. http://dx.doi.org/10.1177/0967033517736164.

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Understanding of light-emitting diode lamp behaviour is essential to support the use of these devices as illumination sources in near infrared spectroscopy. Spectral variation in light-emitting diode peak output (680, 700, 720, 735, 760, 780, 850, 880 and 940 nm) was assessed over time from power up and with variation in environmental temperature. Initial light-emitting diode power up to full intensity occurred within a measurement cycle (12 ms), then intensity decreased exponentially over approximately 6 min, a result ascribed to an increase in junction temperature as current is passed through the light-emitting diode. Some light-emitting diodes displayed start-up output characteristics on their first use, indicating the need for a short light-emitting diode ‘burn in’ period, which was less than 24 h in all cases. Increasing the ambient temperature produced a logarithmic decrease in overall intensity of the light-emitting diodes and a linear shift to longer wavelength of the peak emission. This behaviour is consistent with the observed decrease in the IAD Index (absorbance difference between 670 nm and 720 nm, A670–A720) with increased ambient temperature, as measured by an instrument utilising light-emitting diode illumination (DA Meter). Instruments using light-emitting diodes should be designed to avoid or accommodate the effect of temperature. If accommodating temperature, as light-emitting diode manufacturer specifications are broad, characterisation is recommended.

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28

Xu, Denghui, and Chihaya Adachi. "Organic light-emitting diode with liquid emitting layer." Applied Physics Letters 95, no. 5 (August 3, 2009): 053304. http://dx.doi.org/10.1063/1.3200947.

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29

Lee, Hyeongi, and Taeyoung Won. "Light Conversion Efficiency of Top-Emitting Organic Light-Emitting Diode Structure." Journal of Nanoscience and Nanotechnology 14, no. 11 (November 1, 2014): 8305–8. http://dx.doi.org/10.1166/jnn.2014.9914.

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30

Feng, XF, W. Xu, QY Han, and SD Zhang. "Colour-enhanced light emitting diode light with high gamut area for retail lighting." Lighting Research & Technology 49, no. 3 (October 19, 2015): 329–42. http://dx.doi.org/10.1177/1477153515610621.

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Light emitting diodes with high colour quality were investigated to enhance colour appearance and improve observers' preference for the illuminated objects. The spectral power distributions of the light emitting diodes were optimised by changing the ratios of the narrow band red, green and blue light emitting diodes, and the phosphor-converted broad-band light emitting diode to get the desired colour rendering index and high gamut area index. The influence of the light emitting diode light on different coloured fabrics was investigated. The experimental results and the statistical analysis show that by optimising the red, green, blue components the light emitting diode light can affect the colour appearance of the illuminated fabrics positively and make the fabrics appear more vivid and saturated due to the high gamut area index. Observers indicate a high preference for the colours whose saturations are enhanced. The results reveal that the colour-enhanced light emitting diode light source can better highlight products and improve visual impression over the ceramic metal halide lamp and the phosphor-converted light emitting diode light source.

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31

Huang, Ming-Shyan, Chuan-Cheng Hung, Yi-Chin Fang, Wei-Chi Lai, and Yi-Liang Chen. "Optical design and optimization of light emitting diode automotive head light with digital micromirror device light emitting diode." Optik 121, no. 10 (June 2010): 944–52. http://dx.doi.org/10.1016/j.ijleo.2008.12.018.

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32

Ishimaru, Tadashi, Kazuhira Endo, Sachiko Hatanaka, Takaki Miwa, and Mitsuru Furukawa. "A Light-Emitting Diode Laryngo-Stroboscope." Nihon Kikan Shokudoka Gakkai Kaiho 51, no. 4 (2000): 335–39. http://dx.doi.org/10.2468/jbes.51.335.

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33

YOSHINO, Katsumi, Maki HAMAGUCHI, and Masanori OZAKI. "Organic Light Emitting Diode and Laser." Review of Laser Engineering 25, Supplement (1997): 232–35. http://dx.doi.org/10.2184/lsj.25.supplement_232.

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34

Feng, Cong, Jian-an Huang, and H. W. Choi. "Monolithic Broadband InGaN Light-Emitting Diode." ACS Photonics 3, no. 7 (June 28, 2016): 1294–300. http://dx.doi.org/10.1021/acsphotonics.6b00269.

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35

Koyama, Minoru. "Light Emitting Diode and Its Application." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 69, no. 12 (1985): 642–46. http://dx.doi.org/10.2150/jieij1980.69.12_642.

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36

Koyama, Minoru. "Light emitting diode and its applications." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 73, no. 12 (1989): 734–38. http://dx.doi.org/10.2150/jieij1980.73.12_734.

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37

Liu, Zugang, João Pinto, Jorge Soares, and Estela Pereira. "Efficient multilayer organic light emitting diode." Synthetic Metals 122, no. 1 (May 2001): 177–79. http://dx.doi.org/10.1016/s0379-6779(00)01374-6.

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38

Lee, Sungkoo, Suk In Hong, Hong-Ku Shim, and Changjin Lee. "PTCDA/PPET Heterostructure Light Emitting Diode." Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals 316, no. 1 (May 1998): 289–92. http://dx.doi.org/10.1080/10587259808044511.

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39

Kim, H. H., T. M. Miller, E. H. Westerwick, Y. O. Kim, E. W. Kwock, M. D. Morris, and M. Cerullo. "Silicon compatible organic light emitting diode." Journal of Lightwave Technology 12, no. 12 (1994): 2107–13. http://dx.doi.org/10.1109/50.350620.

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40

Vázquez-Moliní, Daniel. "High-efficiency light-emitting diode collimator." Optical Engineering 49, no. 12 (December 1, 2010): 123001. http://dx.doi.org/10.1117/1.3522644.

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41

Tyan, Yuan-Sheng. "Organic light-emitting-diode lighting overview." Journal of Photonics for Energy 1, no. 1 (January 1, 2011): 011009. http://dx.doi.org/10.1117/1.3529412.

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42

Jia, Dongdong, Yiwei Ma, and D. N. Hunter. "Long persistent light emitting diode indicators." European Journal of Physics 28, no. 5 (July 12, 2007): 833–40. http://dx.doi.org/10.1088/0143-0807/28/5/006.

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43

Nadarajah, Athavan, Robert C. Word, Jan Meiss, and Rolf Könenkamp. "Flexible Inorganic Nanowire Light-Emitting Diode." Nano Letters 8, no. 2 (February 2008): 534–37. http://dx.doi.org/10.1021/nl072784l.

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44

Jia, Dongdong, Jenna Girardi, and Kelly Greenland. "Long Persistent White Light Emitting Diode." ECS Transactions 6, no. 27 (December 19, 2019): 11–17. http://dx.doi.org/10.1149/1.2938744.

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45

Hande, Savithri, and Prajna K B. "Survey on Organic Light Emitting Diode." International Journal of Innovative Science and Research Technology 5, no. 6 (July 2, 2020): 630–36. http://dx.doi.org/10.38124/ijisrt20jun492.

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Organic light emitting diodes is a new display technology, which uses organic thin materials that are placed between conductors. When an electric current is applied, a bright light is emitted. OLEDs are thin, transparent, flexible, foldable displays. In 1987 researchers of Eastman Kodak company invented OLED diode technology. The principal inventors were Chemists Ching W. Tang and Steven Van Slyke. In 2001 they received an Industrial Innovation Award from the American Chemical Society for their contribution in organic light emitting diodes. In 2003, Kodak realised its first OLED display had 512 by 218 pixels, 2.2 inch. Two technologies necessary to make flexible OLEDs were invented by Researchers at Pacific Northwest National Laboratory and the Department of Energy. Many researchers are contributing to improve the OLED technology. In this paper we give a brief of what is OLED, types of OLED, different fabrication methods of OLED, advantages and disadvantages of OLED.

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46

Stein, Benjamin P. "A single-photon light-emitting diode." Physics Today 55, no. 7 (July 2002): 9. http://dx.doi.org/10.1063/1.2409334.

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47

Kamiyama, S., M. Iwaya, H. Amano, and I. Akasaki. "High-Efficiency UV Light-Emitting Diode." physica status solidi (a) 194, no. 2 (December 2002): 393–98. http://dx.doi.org/10.1002/1521-396x(200212)194:2<393::aid-pssa393>3.0.co;2-7.

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48

Zhang, Shuai, Zheng Shi, Jialei Yuan, Xumin Gao, Wei Cai, Yuan Jiang, Yuhuai Liu, and Yongjin Wang. "Membrane Light-Emitting Diode Flow Sensor." Advanced Materials Technologies 3, no. 3 (December 20, 2017): 1700285. http://dx.doi.org/10.1002/admt.201700285.

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49

Wallikewitz, Bodo H., Matthias de la Rosa, Jonas H. W. M. Kremer, Dirk Hertel, and Klaus Meerholz. "A Lasing Organic Light-Emitting Diode." Advanced Materials 22, no. 4 (January 26, 2010): 531–34. http://dx.doi.org/10.1002/adma.200902451.

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50

Xue, Jin, Yuji Zhao, Sang-Ho Oh, William F. Herrington, James S. Speck, Steven P. DenBaars, Shuji Nakamura, and Rajeev J. Ram. "Thermally enhanced blue light-emitting diode." Applied Physics Letters 107, no. 12 (September 21, 2015): 121109. http://dx.doi.org/10.1063/1.4931365.

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