Gotowe bibliografie tematyczne / Pc-WLEDs

Gotowa bibliografia na temat „Pc-WLEDs”

Autor: Grafiati
Data publikacji: 16 września 2023

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Artykuły w czasopismach na temat "Pc-WLEDs"

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Thuy My, Le Thi, My Hanh Nguyen Thi i Hoang Thinh Nhan. "Yellow-green emitting CaGa2S4:Eu2+ phosphor: an application for enhancing the luminous flux of the white light emitting diodes". Indonesian Journal of Electrical Engineering and Computer Science 32, nr 1 (1.10.2023): 90. http://dx.doi.org/10.11591/ijeecs.v32.i1.pp90-97.

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The <span lang="EN-GB">optimal spectral characteristics and photometric qualities in white-emitting light-emitting diodes (WLEDs) featuring red-emitting LEDs instead of phosphor (pc/R-WLEDs) were determined using the luminescent efficiency (LE) theory. The color quality scale (Rf) is higher than 97K for correlating color temperature (CCTs) ranging between 2700K and 6500K. We first identified genuine pc/R-WLEDs having Rf levels at 96–97, LE levels at 120–124 lm/W with CCT levels at 2969K, 4468K, 5682K, as well as 6558K with the utilization of all four-color phosphors: blues (448 nm), reddish (650 nm) LEDs, greenish (507 nm), and yellowish (586 nm). When compared to phosphorus-converted white-emitting LEDs (pc-WLEDs) and quantum dots white-emitting LEDs (QD-WLEDs), the pc/R-WLEDs, rather than the QD-WLED, would make better representatives of improved color version, notably in the reduced color temperatures, and could eventually replace current pc-WLEDs</span>.
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Dang Huu, Phuc, Nguyen Le Thai i Phan Xuan Le. "Studying CdS:In green phosphor's impacts on white-light emitting diode with higher luminous flux". Materials Science-Poland 40, nr 2 (1.08.2022): 159–69. http://dx.doi.org/10.2478/msp-2022-0014.

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Abstract A lumen efficiency (LE) simulation model with the Monte Carlo method is introduced to the white-light-emitting diode devices that utilize the red LED (light-emitting diode) dyes instead of red-emitting phosphors (R-WLEDs). By simulating this model, the desirable spectrum-related indices and photometric efficiencies, which are adequate for superior chromatic consistency (or R f > 97), can be accomplished for R-WLEDs under the correlated color temperature (CCT) range of 5000–8000 K. The structure of the R-LED has LEDs in red and blue colors (650 nm and 448 nm) combined with phosphors possessing yellow and green emissions (586 nm and 507 nm). In comparison with pc-WLEDs (WLEDs operating with conversion phosphors) and QD-WLEDs (WLED devices with quantum dots), pc/R-WLED devices could present its outperformance to the others and become a promising way to achieve remarkable chromatic generation, particularly under the condition of small color temperature limit, and act as a substitute for the pc-WLED devices.
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Dang, Huu Phuc, Nguyen Thi Phuong Loan, Thanh Tung Nguyen i Sang Dang Ho. "Applying calcium fluoride and silica particles: A solution to improve color homogeneity of pc-WLEDS". International Journal of Electrical and Computer Engineering (IJECE) 11, nr 5 (1.10.2021): 3864. http://dx.doi.org/10.11591/ijece.v11i5.pp3864-3869.

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<span>This article focuses on enhancing the lighting efficiency of pc-WLEDs, a new and advanced lighting solution that has received lots of attention. To adapt to the demand of modern lighting, the lighting performance of pc-WLEDs must be improved, especially the color homogeneity and luminous flux, two of the most important quality indicators of pc-WLEDs. Through experiments, this article proposes using the scattering enhancement particles (SEPs) such as CaF<sub>2 </sub>and SiO<sub>2 </sub>with yellow phosphor Y<sub>3</sub>Al<sub>5</sub>O<sub>12</sub>:Ce<sup>3+</sup> in pc-WLEDs configuration. The pc-WLEDs model is created by using the LightTools program and set at 8500 K correlated color temperature, while the experimental results yielded from this simulation will be verified by Mie-scattering theory. The information from this article reveals the scattering coefficients of SEPs at 455 nm and 595 nm wavelengths. Moreover, it is confirmed that the employment of CaF<sub>2 </sub>is effective in promoting the color but may damage the luminous efficiency if the concentration is too high while the SEP material, SiO<sub>2</sub>, exhibits high luminous efficiency at all concentration.</span>
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Tsai, Chun-Chin. "Color Rendering Index Thermal Stability Improvement of Glass-Based Phosphor-Converted White Light-Emitting Diodes for Solid-State Lighting". International Journal of Photoenergy 2014 (2014): 1–6. http://dx.doi.org/10.1155/2014/407239.

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High color rendering index performance has been required for phosphor-converted warm-white light-emitting diodes (PC-WWLEDs) in lighting industry. The characteristics of low-temperature fabricated phosphor (yellow: Ce3+:YAG, green: Tb3+:YAG, and red: CaAlClSiN3:Eu2+) doped glass were presented for applications to high color rendering index warm-white-light-emitting diodes. Color coordinates (x, y) = (0.36, 0.29), quantum yield (QY) = 55.6%, color rending index (CRI) = 85.3, and correlated color temperature (CCT) = 3923 K were characterized. Glass-based PC-WWLEDs was found able to maintain good thermal stability for long-time high-temperature operation. QY decay, CRI remenance, and chromaticity shift were also analyzed for glass- and silicone-based high-power PC-WLEDs by thermal aging at 150°C and 250°C for industrial test standard’s aging time 1008 hours. Better than the silicone’s, thermal stability of glass-based PC-WLEDs has been improved. The resulted high color rendering index (CRI) glass phosphor potentially can be used as a phosphor layer for high-performance and low-cost PC-WLEDs used in next-generation indoor solid-state lighting applications.
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Peng, Gang, Zhijie Zhu, Yu Tian, Yu-long Tong, Ting-Ting Cui, Cai-Feng Wang i Su Chen. "Dendrimer-induced colloids towards robust fluorescent photonic crystal films and high performance WLEDs". Journal of Materials Chemistry C 6, nr 30 (2018): 8187–93. http://dx.doi.org/10.1039/c8tc02484g.

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Xing, Gongcheng, Yuxin Feng, Zhiyu Gao, Mengxuan Tao, Hongquan Wang, Yi Wei, Maxim S. Molokeev i Guogang Li. "A novel red-emitting La2CaHfO6:Mn4+ phosphor based on double perovskite structure for pc-WLEDs lighting". CrystEngComm 21, nr 23 (2019): 3605–12. http://dx.doi.org/10.1039/c9ce00556k.

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Lin, Yuan-Chih, Paul Erhart i Maths Karlsson. "Vibrationally induced color shift tuning of photoluminescence in Ce3+-doped garnet phosphors". Journal of Materials Chemistry C 7, nr 41 (2019): 12926–34. http://dx.doi.org/10.1039/c9tc01244c.

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Hong, Feng, Ge Pang, Lijuan Diao, Zhendong Fu, Guixia Liu, Xiangting Dong, Wensheng Yu i Jinxian Wang. "Local structure modulation of Mn4+-doped Na2Si1−yGeyF6 red phosphors for enhancement of emission intensity, moisture resistance, thermal stability and application in warm pc-WLEDs". Dalton Transactions 49, nr 39 (2020): 13805–17. http://dx.doi.org/10.1039/d0dt02935a.

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Santra, Angshuman, Nisnat Chakraborty, Karamjyoti Panigrahi, Kalyan K. Chattopadhyay i Uttam Kumar Ghorai. "SrTiO3: Sm3+, Na+-codoped orange-emitting nanophosphor for pc-WLEDs". Journal of Materials Science: Materials in Electronics 33, nr 11 (9.10.2021): 1–15. http://dx.doi.org/10.1007/s10854-021-06876-5.

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Shih, Bao-Jen, Shih-Chen Chiou, Yu-Hua Hsieh, Ching-Cherng Sun, Tsung-Hsun Yang, Szu-Yu Chen i Te-Yuan Chung. "Study of temperature distributions in pc-WLEDs with different phosphor packages". Optics Express 23, nr 26 (23.12.2015): 33861. http://dx.doi.org/10.1364/oe.23.033861.

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Rozprawy doktorskie na temat "Pc-WLEDs"

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Nekrasova, Y. A., V. A. Aseev, N. V. Nikonorov, E. B. Kolobkova, O. A. Usov i A. V. Nashchekin. "Red Emitting Phosphors Doped with Mn and Eu Ions for pc-WLEDs". Thesis, Sumy State University, 2013. http://essuir.sumdu.edu.ua/handle/123456789/35375.

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A new red emitting phosphors based on oxyfluoride glass and glassceramics doped with europium and manganese ions were synthesized and their optical properties and structure were studied. The transparent ceramic matrices for phosphors were selected because they overcome traditional powder phosphors due to high chemical and thermal stability and low temperature sensitivity. The fluoride based red emitting phosphors combined with green one and blue emitting chip used to fabricate phosphor converted white LEDs with warm color temperature and improved color rendering indexes. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/35375
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Części książek na temat "Pc-WLEDs"

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Ali, Amjad, Qian Li, Hongyan Fu i Syed Raza Mehdi. "Blue Laser Diode-Based Visible Light Communication and Solid-State Lighting". W Antenna Systems [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.100106.

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In this chapter, we review our recent work on blue laser diode-based visible light communication and solid-state lighting. Gallium nitride (GaN) phosphor-converted white light-emitting diodes (Pc-WLEDs) are emerging as an indispensable solid-state lighting (SSL) source for next-generation display system and the lighting industry. Together with the function of lighting, visible light communication (VLC) using Pc-WLEDs has gained increasing attention to fulfill the growing demand for wireless data communication. Practically, the low modulation response and low emitting intensity of light-emitting diodes (LED) are the drawbacks for the development of ultrahigh-speed VLC and high-quality SSL system. Blue GaN laser diode (LD) and remote phosphor-based white light can be used for both high-speed VLC and SSL simultaneously. We demonstrated a color-rendering index (CRI) of 93.8, a correlated color temperature (CCT) of 4435 K, and a data rate of 1.6 Gbps under NRZ-OOK modulation by an exciting blue laser diode on narrowband green−/red-emitting composite phosphor film. This work opens up exciting possibilities for future high-speed indoor VLC and high-quality SSL.
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Streszczenia konferencji na temat "Pc-WLEDs"

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Yang, Tsung-Hsun, Hsu-Yi Huang, Hsin-Mei Wu, Xuan-Hao Lee, Yeh-Wei Yu i Ching-Cherng Sun. "CCT stabilization and phosphor temperature detection in pc-WLEDs". W Current Developments in Lens Design and Optical Engineering XIX, redaktorzy R. Barry Johnson, Virendra N. Mahajan i Simon Thibault. SPIE, 2018. http://dx.doi.org/10.1117/12.2320098.

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Tsai, Chun-Chin, Cheng-Feng Yue, Wei-Po Lin i Jyun-Sian Liao. "Visual susceptibility analysis for solid-state lighting of commercial PC-WLEDs". W SPIE OPTO, redaktorzy Klaus P. Streubel, Heonsu Jeon, Li-Wei Tu i Martin Strassburg. SPIE, 2013. http://dx.doi.org/10.1117/12.2004309.

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Zhang, Kun, Haibo Rao, Qinghao Meng, Ting Li i Weibing Zheng. "Self-adaptive remote phosphor layer for PC-WLEDs with vertical chip". W 2016 13th China International Forum on Solid State Lighting (SSLChina). IEEE, 2016. http://dx.doi.org/10.1109/sslchina.2016.7804337.

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