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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c00892
|2 doi
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|a eng
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1 |
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|a Liu, Chao-Hui
|e verfasserin
|4 aut
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|a Iridescent Colloidal Crystals Composed of SiO2 Porous Hollow Sphere for SERS Application
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 18.05.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In recent years, the application of low-refractive-index materials in the optical field has attracted considerable attention due to it high transmittance and high optical sensitivity. In this study, we synthesized SiO2 porous hollow spheres (SPHS) with an ultralow refractive index (n = 1.05) by using a templating method. Their refractive indices could be easily controlled from 1.05 to 1.08 by tuning the thickness of shell. In addition, a droplet coatings method is proposed for SPHS colloidal crystal (CC) by controlling the temperature and humidity. The SPHS CCs displayed distinct structural colors when the incident angle was adjusted and demonstrated high angular resolution. Moreover, the iridescent color changes could be observed with the naked eye. For surface-enhanced Raman scattering application, more analyte could be absorbed by the porous shells, and metal nanoparticles were coated on the SPHSs surface to increase the hot spot density for improving the SERS intensity
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|a Journal Article
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|a Wei, Ming-Xue
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hsu, Chun-Han
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lin, Hong-Ping
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Yu-Chun
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 38(2022), 19 vom: 17. Mai, Seite 6217-6223
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:38
|g year:2022
|g number:19
|g day:17
|g month:05
|g pages:6217-6223
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|u http://dx.doi.org/10.1021/acs.langmuir.2c00892
|3 Volltext
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