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240108s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202306593
|2 doi
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|a pubmed24n1366.xml
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|a (NLM)38174617
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|a DE-627
|b ger
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|a eng
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| 100 |
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|a Tang, Qiheng
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Mismatched Refractive Index Strategy for Fabricating Laser-Driven Wood Diffusers from Bulk Wood for Illumination Applications
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 04.04.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2024 Wiley‐VCH GmbH.
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|a Laser-diode-based solid-state lighting is primarily used in state-of-the-art illumination systems. However, these systems rely on light-converting inorganic phosphors, which have low quantum efficiencies and complex manufacturing conditions. In this study, a mismatched refractive index strategy is proposed to directly convert natural bulk wood into a laser-driven wood diffuser using a simple delignification and polymer infiltration method. The resulting material has the potential to be used in laser-driven diffuse illumination applications. The optical performance of the laser-driven wood diffuser is optimized by changing the density of natural wood. The optimal coefficient of illuminance variation of the wood diffuser is as low as 17.7%, which is significantly lower than that of commercial diffusers. The illuminance uniformity is larger than 0.9, which is significantly higher than the ISO requirements for indoor workplace lighting. The laser damage threshold is 7.9 J cm-2, which is considerably higher than those of the substrates of commercially available phosphors. Furthermore, the optimized wood diffuser exhibits outstanding mechanical properties, excellent thermal stability, tolerance to harsh environmental conditions, and low speckle contrast. These results show that the laser-driven wood diffuser is a promising laser-color converter that is suitable for indoor, long-distance outdoor, undersea, and other high-luminance laser lighting applications
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|a Journal Article
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|a laser‐driven illumination
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4 |
|a light scattering
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4 |
|a mismatched refractive index
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| 650 |
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4 |
|a natural wood
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| 650 |
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4 |
|a poly(ethylene glycol) diacrylate
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| 700 |
1 |
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|a Yuan, Xiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zou, Miao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Lei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chang, Liang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Xueqi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Jie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhou, Guanwu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gao, Kezheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guo, Wenjing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Yongping
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 14 vom: 03. Apr., Seite e2306593
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
1 |
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|g volume:36
|g year:2024
|g number:14
|g day:03
|g month:04
|g pages:e2306593
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202306593
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