Self-assembled polymeric solid films with temperature-induced large and reversible photonic-bandgap switching

2004 ◽  
Vol 3 (12) ◽  
pp. 872-876 ◽  
Author(s):  
Sami Valkama ◽  
Harri Kosonen ◽  
Janne Ruokolainen ◽  
Tomi Haatainen ◽  
Mika Torkkeli ◽  
...  
Keyword(s):  
Photonic Bandgap ◽  
Solid Films ◽  
Self Assembled ◽  
Polymeric Solid

An odd-numbered heptameric water cluster containing a puckered pentamer self-assembled in a Ag(I) polymeric solid

2012 ◽  
Vol 18 ◽  
pp. 4-7 ◽  
Author(s):  
Wei-Jun He ◽  
Geng-Geng Luo ◽  
Dong-Liang Wu ◽  
Li Liu ◽  
Jiu-Xu Xia ◽  
...  
Keyword(s):  
Water Cluster ◽  
Self Assembled ◽  
Polymeric Solid

Tailoring Air Defects in Self-Assembled Photonic Bandgap Crystals

2005 ◽  
Vol 17 (15) ◽  
pp. 1908-1911 ◽  
Author(s):  
Y. Jun ◽  
C. A. Leatherdale ◽  
D. J. Norris
Keyword(s):  
Photonic Bandgap ◽  
Self Assembled ◽  
Photonic Bandgap Crystals

Self-Assembly of Block Copolymers for Photonic-Bandgap Materials

MRS Bulletin ◽  
2005 ◽  
Vol 30 (10) ◽  
pp. 721-726 ◽  
Author(s):  
Jongseung Yoon ◽  
Wonmok Lee ◽  
Edwin L. Thomas
Keyword(s):  
Molecular Weight ◽  
Block Copolymer ◽  
Block Copolymers ◽  
Photonic Crystals ◽  
Liquid Crystalline ◽  
Photonic Bandgap ◽  
Photonic Bandgap Materials ◽  
Periodic Microstructures ◽  
Self Assembled ◽  
Bandgap Materials

AbstractSelf-assembled block copolymer systems with an appropriate molecular weight to produce a length scale that will interact with visible light are an alternative platform material for the fabrication of large-area, well-ordered photonic-bandgap structures at visible and near-IR frequencies.Over the past years, one-, two-, and three-dimensional photonic crystals have been demonstrated with various microdomain structures created through microphase separation of block copolymers. The size and shape of periodic microstructures of block copolymers can be readily tuned by molecular weight, relative composition of the copolymer, and blending with homopolymers or plasticizers.The versatility of photonic crystals based on block copolymers is further increased by incorporating inorganic nanoparticles or liquid-crystalline guest molecules (or using a liquid-crystalline block), or by selective etching of one of the microdomains and backfilling with high-refractive-index materials. This article presents an overview of photonic-bandgap materials enabled by self-assembled block copolymers and discusses the morphology and photonic properties of block-copolymer-based photonic crystals containing nanocomposite additives.We also provide a view of the direction of future research, especially toward novel photonic devices.

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