scholarly journals Large-area flexible colloidal photonic crystal film stickers for light trapping applications

2018 ◽  
Vol 8 (4) ◽  
pp. 960 ◽  
Author(s):  
Tomas Kohoutek ◽  
Mikhail Parchine ◽  
Maria Bardosova ◽  
Hiroshi Fudouzi ◽  
Martyn Pemble
Keyword(s):  
Photonic Crystal ◽  
Light Trapping ◽  
Large Area ◽  
Crystal Film

scholarly journals Synthesis of High-Performance Photonic Crystal Film for SERS Applications via Drop-Coating Method

Coatings ◽  
2020 ◽  
Vol 10 (7) ◽  
pp. 679
Author(s):  
Ming-Xue Wei ◽  
Chao-Hui Liu ◽  
Han Lee ◽  
Bo-Wei Lee ◽  
Chun-Han Hsu ◽  
...  
Keyword(s):  
Particle Size ◽  
Photonic Crystal ◽  
Band Gap ◽  
Colloidal Particles ◽  
Laser Source ◽  
Synthesis Process ◽  
Large Area ◽  
Structural Colors ◽  
Crystal Film ◽  
Coating Method

Silica nanospheres with a well-controlled particle size were prepared via a nucleation-to-growth synthesis process. A facile method is proposed for improving the self-assembly behavior of silica colloidal particles in droplet coatings by the simple controlling of the drying temperature. It is shown that a periodically arranged, opal-structured, photonic crystal film with a large area of approximately 4.0 cm2 can be prepared, even when the particle size is up to 840 nm. When the band gap of the silica photonic crystals falls in the visible-light region, the crystals exhibit distinct structural colors. Moreover, the wavelength of the reflected light increases with an increasing particle size of silica. When the photonic band gap overlaps the wavelength of the laser source, the overall Raman spectrum intensity is significantly enhanced. Accordingly, the proposed nucleation-to-growth process and drop-coating method provides a cheap and simple approach for the manufacture of uniform sized silica and surface-enhanced Raman scattering substrates, respectively.

Efficient light trapping in a fluorescence solar collector by 3D photonic crystal

2010 ◽  
Vol 4 (5-6) ◽  
pp. 118-120 ◽  
Author(s):  
Sebastian Knabe ◽  
Nazila Soleimani ◽  
Tom Markvart ◽  
Gottfried Heinrich Bauer
Keyword(s):  
Photonic Crystal ◽  
Solar Collector ◽  
Light Trapping
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