Enhanced amplified spontaneous emission from conjugated light-emitting polymer integrated with silicon nitride grating structures

Zhang, Andi; Chen, Yujie; Wu, Zeru; Zhang, Shuailong; Zhu, Zhenke; He, Lin; Liu, Lin; Zhang, Yanfeng; Yu, Siyuan

doi:10.1364/osac.2.002875

Cited by 2 publications

(2 citation statements)

References 27 publications

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“…Scattering computation for CaO:Tb 3+ phosphor is performed applying the Mie-scattering theory [22]- [25]. By recognizing the scattering coefficient 𝜇 𝑠𝑐𝑎 , the effects of this green-emitting phosphor on the lighting efficiency can be validated.…”

Section: Resultsmentioning

confidence: 99%

CaO:Tb3+ green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

Tung,

Nguyen Thi

2024

Bulletin EEI

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The use of CaO:Tb3+ with light green emission on for improvement of both luminescent output and chromatic fidelity of the white light emitted from a light-emitting diode (LED). The CaO:Tb3+ is combined with the yellow-emitting phosphor of YAG:Ce3+ to provide sufficient colored spectral proportion for the white light generation, enhancing the color performance. The phosphor combination is utilized for the three most applied LED structures: conformal, in-cup, and remote phosphor structures. The changes in optical properties of these three LEDs are monitored with adjustments in the proportion of CaO:Tb3+. The higher proportion of the green phosphor results in higher scattering efficiency in all structures, offering better color coordination and stronger luminous flux. The color quality scale is somehow reduced when CaO:Tb3+ concentration is more than a certain level. Therefore, depending on the phosphor configuration of the white light-emitting diode (WLED), the concentration of CaO:Tb3+ should be modified to achieve a good color rendition with improved color consistency and luminous properties.

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Section: Resultsmentioning

confidence: 99%

CaO:Tb3+ green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

Tung,

Nguyen Thi

2024

Bulletin EEI

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“…The relation between the temperature quenching and the emission intensity of the phosphor CMS: Eu 2+ can be shown via (8), which includes the computed activation energy for temperature quenching (E) by the Arrhenius equation [24]:…”

Section: Computational Analysismentioning

confidence: 99%

The effects of Ca14Mg2(SiO4)8:Eu2+ phosphor on white light emission quality of LED-phosphor packages

Thanh Tung,

An Nguyen Thi,

Doan Quoc Anh

2023

Bulletin EEI

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Ca14Mg2(SiO4)8: Eu2+ (CMS:Eu2+) green phosphor is used for creating the white-light emitting diode (W-LED) packages with conversion phosphor materials. The phosphor shows the broadband green emission that peaks at 505 nm in the blue wavelength. The phosphor introduces the improvement in the blue and green emission spectra, which helps to heighten the luminous flux. Moreover, that the concentration of CMS:Eu2+ increases, the scattering events are enhanced to benefits the color blending for lower color variations or better color uniformity. The color renditions reduce with the rising green-phosphor concentration. The green-light amount becomes surplus and redundant for balancing color elements of white light emission. Thus, it should adjust and keep the concentration of CMS:Eu2+ in the range of ~2–8 wt%, to get the average number of color rendering index (CRI) (73–75), and color quality scale (CQS) (60–64). The CMS: Eu2+, hence, is suitable for white light realization, and the W-LED aiming at high-luminescence white light emission with improved color uniformity, and average rendering performances.

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Enhanced amplified spontaneous emission from conjugated light-emitting polymer integrated with silicon nitride grating structures

Cited by 2 publications

References 27 publications

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

CaO:Tb<sup>3+ </sup> green-emitting phosphor for white light-emitted diode-phosphor applications: the improvement of light output intensity

The effects of Ca<sub>14</sub>Mg<sub>2</sub>(SiO<sub>4</sub>)<sub>8</sub>:Eu<sup>2+</sup> phosphor on white light emission quality of LED-phosphor packages

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