Flexible construction of cellulose photonic crystal optical sensing nano-materials detecting organic solvents

The Analyst ◽  
2019 ◽  
Vol 144 (6) ◽  
pp. 1892-1897 ◽  
Author(s):  
Dan Yan ◽  
Renbin Li ◽  
Wei Lu ◽  
Chunmei Piao ◽  
Lili Qiu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Polymethyl Methacrylate ◽  
Organic Solvents ◽  
Efficient Method ◽  
Carboxymethyl Cellulose ◽  
Optical Sensing ◽  
Inverse Opal ◽  
Nano Materials ◽  
Crystal Films ◽  
Colloidal Arrays

We developed a simple and efficient method to construct 3D and 2D opal and inverse opal cellulose photonic crystal films (CPCF) by embedding 3D or 2D polymethyl methacrylate (PMMA) colloidal arrays into carboxymethyl cellulose (CMC), respectively.

Chemically Responsive Polymer Inverse-Opal Photonic Crystal Films Created by a Self-Assembly Method

2016 ◽  
Vol 120 (22) ◽  
pp. 11938-11946 ◽  
Author(s):  
Huilin Zhao ◽  
Jianping Gao ◽  
Zeng Pan ◽  
Guanbo Huang ◽  
Xiaoyang Xu ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Self Assembly ◽  
Inverse Opal ◽  
Assembly Method ◽  
Responsive Polymer ◽  
Crystal Films

Fabrication of polyacrylamide inverse opal photonic crystal Films based on co-deposition

2015 ◽  
Vol 150 ◽  
pp. 5-8 ◽  
Author(s):  
Huanhuan Liu ◽  
Dongjian Shi ◽  
Fang Duan ◽  
Zhaokun Yang ◽  
Mingqing Chen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Inverse Opal ◽  
Crystal Films

scholarly journals Smart polymer inverse-opal photonic crystal films by melt-shear organization for hybrid core–shell architectures

2015 ◽  
Vol 3 (10) ◽  
pp. 2204-2214 ◽  
Author(s):  
C. G. Schäfer ◽  
T. Winter ◽  
S. Heidt ◽  
C. Dietz ◽  
T. Ding ◽  
...  
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Core Shell ◽  
Inverse Opal ◽  
Stimuli Responsive ◽  
Large Area ◽  
Smart Polymer ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Crystal Films

Large-area inverse opal structures based on stimuli-responsive polymers with reversibly switchable and distinct optical properties are prepared by melt-shear organization.

scholarly journals Graphene Quantum Dot-TiO2 Photonic Crystal Films for Photocatalytic Applications

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2566
Author(s):  
Maria-Athina Apostolaki ◽  
Alexia Toumazatou ◽  
Maria Antoniadou ◽  
Elias Sakellis ◽  
Evangelia Xenogiannopoulou ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Visible Light ◽  
Performance Enhancement ◽  
Photonic Band Gap ◽  
Light Trapping ◽  
Stop Band ◽  
Graphene Quantum Dots ◽  
Inverse Opal ◽  
Crystal Films ◽  
Visible Light Activation

Photonic crystal structuring has emerged as an advanced method to enhance solar light harvesting by metal oxide photocatalysts along with rational compositional modifications of the materials’ properties. In this work, surface functionalization of TiO2 photonic crystals by blue luminescent graphene quantum dots (GQDs), n–π* band at ca. 350 nm, is demonstrated as a facile, environmental benign method to promote photocatalytic activity by the combination of slow photon-assisted light trapping with GQD-TiO2 interfacial electron transfer. TiO2 inverse opal films fabricated by the co-assembly of polymer colloidal spheres with a hydrolyzed titania precursor were post-modified by impregnation in aqueous GQDs suspension without any structural distortion. Photonic band gap engineering by varying the inverse opal macropore size resulted in selective performance enhancement for both salicylic acid photocatalytic degradation and photocurrent generation under UV–VIS and visible light, when red-edge slow photons overlapped with the composite’s absorption edge, whereas stop band reflection was attenuated by the strong UVA absorbance of the GQD-TiO2 photonic films. Photoelectrochemical and photoluminescence measurements indicated that the observed improvement, which surpassed similarly modified benchmark mesoporous P25 TiO2 films, was further assisted by GQDs electron acceptor action and visible light activation to a lesser extent, leading to highly efficient photocatalytic films.

scholarly journals Photonic Crystal Nanobeam Cavities for Nanoscale Optical Sensing: A Review

Micromachines ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 72 ◽  
Author(s):  
Da-Quan Yang ◽  
Bing Duan ◽  
Xiao Liu ◽  
Ai-Qiang Wang ◽  
Xiao-Gang Li ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Waveguides ◽  
Optical Sensing ◽  
Early Stage ◽  
Disease Diagnosis ◽  
Label Free ◽  
Quality Factors ◽  
Integrated Sensor ◽  
Early Stage Disease ◽  
Wide Range

The ability to detect nanoscale objects is particular crucial for a wide range of applications, such as environmental protection, early-stage disease diagnosis and drug discovery. Photonic crystal nanobeam cavity (PCNC) sensors have attracted great attention due to high-quality factors and small-mode volumes (Q/V) and good on-chip integrability with optical waveguides/circuits. In this review, we focus on nanoscale optical sensing based on PCNC sensors, including ultrahigh figure of merit (FOM) sensing, single nanoparticle trapping, label-free molecule detection and an integrated sensor array for multiplexed sensing. We believe that the PCNC sensors featuring ultracompact footprint, high monolithic integration capability, fast response and ultrahigh sensitivity sensing ability, etc., will provide a promising platform for further developing lab-on-a-chip devices for biosensing and other functionalities.

Asymmetric Free-Standing 2-D Photonic Crystal Films and Their Janus Particles

2013 ◽  
Vol 135 (30) ◽  
pp. 11397-11401 ◽  
Author(s):  
Jian-Tao Zhang ◽  
Xing Chao ◽  
Sanford A. Asher
Keyword(s):  
Photonic Crystal ◽  
Janus Particles ◽  
Free Standing ◽  
Crystal Films

Visual detection of carbonate ions by inverse opal photonic crystal polymers in aqueous solution

2015 ◽  
Vol 3 (37) ◽  
pp. 9524-9527 ◽  
Author(s):  
Lu Li ◽  
Bin Zhao ◽  
Yue Long ◽  
Jin-Ming Gao ◽  
Guoqiang Yang ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Photonic Crystal ◽  
Polymer Films ◽  
Visual Detection ◽  
Color Change ◽  
Ph Dependence ◽  
Inverse Opal ◽  
Carbonate Ions ◽  
Crystal Polymer

This communication demonstrates a facile method to detect CO32− by naked eyes through color change based on the pH dependence of inverse opal photonic crystal polymer films.

An ordered fish scale-like Co-TiO2/GO inverse opal photonic crystal as the multifunctional SERS substrate

2021 ◽  
Vol 858 ◽  
pp. 158356
Author(s):  
Zhou Zhao ◽  
Huan He ◽  
Yaping Zhu ◽  
Xueyan Wang ◽  
Yuhua Shen ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Sers Substrate ◽  
Fish Scale ◽  
Inverse Opal
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