scholarly journals Near-Infrared Circularly Polarized Light Triggered Enantioselective Photopolymerization by Using Upconversion Nanophosphors

2017 ◽  
Vol 23 (33) ◽  
pp. 8032-8038 ◽  
Author(s):  
Guang Yang ◽  
Liangfu Zhu ◽  
Jingang Hu ◽  
Hongyan Xia ◽  
Dong Qiu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized

Ultrasensitive Near‐Infrared Circularly Polarized Light Detection Using 3D Perovskite Embedded with Chiral Plasmonic Nanoparticles

2022 ◽  
pp. 2104598
Author(s):  
Hongki Kim ◽  
Ryeong Myeong Kim ◽  
Seok Daniel Namgung ◽  
Nam Heon Cho ◽  
Jung Bae Son ◽  
...  
Keyword(s):  
Near Infrared ◽  
Polarized Light ◽  
Plasmonic Nanoparticles ◽  
Light Detection ◽  
Circularly Polarized Light ◽  
Circularly Polarized

scholarly journals π-Extended perylene diimide double-heterohelicenes as ambipolar organic semiconductors for broadband circularly polarized light detection

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Li Zhang ◽  
Inho Song ◽  
Jaeyong Ahn ◽  
Myeonggeun Han ◽  
Mathieu Linares ◽  
...  
Keyword(s):  
Charge Transport ◽  
Organic Semiconductors ◽  
High Performance ◽  
Near Infrared ◽  
Polarized Light ◽  
Molecular Structures ◽  
Perylene Diimide ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Nir Light

AbstractDespite great challenges, the development of new molecular structures with multiple and even conflicting characteristics are eagerly pursued for exploring advanced applications. To develop high-performance chiral organic semiconducting molecules, a distorted π-system is required for strong coupling with circularly polarized light (CPL), whereas planar π-stacking systems are necessary for high charge-carrier mobility. To address this dilemma, in this work, we introduce a skeleton merging approach through distortion of a perylene diimide (PDI) core with four fused heteroaromatics to form an ortho-π-extended PDI double-[7]heterohelicene. PDI double helicene inherits a high dissymmetry factor from the helicene skeleton, and the extended π-planar system concurrently maintains a high level of charge transport properties. In addition, ortho-π-extension of the PDI skeleton brings about near-infrared (NIR) light absorption and ambipolar charge transport abilities, endowing the corresponding organic phototransistors with high photoresponsivity of 450 and 120 mA W−1 in p- and n-type modes respectively, along with a high external quantum efficiency (89%) under NIR light irradiations. Remarkably, these multiple characteristics enable high-performance broadband CPL detections up to NIR spectral region with chiral organic semiconductors.

scholarly journals Corrigendum: Near‐Infrared Circularly Polarized Light Triggered Enantioselective Photopolymerization by Using Upconversion Nanophosphors

2019 ◽  
Vol 25 (53) ◽  
pp. 12446-12446
Author(s):  
Guang Yang ◽  
Liangfu Zhu ◽  
Jingang Hu ◽  
Hongyan Xia ◽  
Dong Qiu ◽  
...  
Keyword(s):  
Near Infrared ◽  
Polarized Light ◽  
Circularly Polarized Light ◽  
Circularly Polarized

Differential polarization imaging of sickled cells

1988 ◽  
Vol 46 ◽  
pp. 62-63
Author(s):  
Marcos F. Maestre
Keyword(s):  
Optical Properties ◽  
Theoretical Approach ◽  
Polarized Light ◽  
Polarization Microscopy ◽  
Spectroscopic Techniques ◽  
Polarization Imaging ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Microscopic Scale ◽  
Chiral Structures

Recently we have developed a form of polarization microscopy that forms images using optical properties that have previously been limited to macroscopic samples. This has given us a new window into the distribution of structure on a microscopic scale. We have coined the name differential polarization microscopy to identify the images obtained that are due to certain polarization dependent effects. Differential polarization microscopy has its origins in various spectroscopic techniques that have been used to study longer range structures in solution as well as solids. The differential scattering of circularly polarized light has been shown to be dependent on the long range chiral order, both theoretically and experimentally. The same theoretical approach was used to show that images due to differential scattering of circularly polarized light will give images dependent on chiral structures. With large helices (greater than the wavelength of light) the pitch and radius of the helix could be measured directly from these images.

Blue Circularly Polarized Luminescent Amorphous Molecules with Single-handed Propeller Chirality Induced by Circularly Polarized Light Irradiation

2021 ◽  
Author(s):  
Zhaoming Zhang ◽  
Takunori Harada ◽  
Adriana Pietropaolo ◽  
Yuting Wang ◽  
Yue Wang ◽  
...  
Keyword(s):  
Polarized Light ◽  
Light Irradiation ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Trigonal Symmetry ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Preferred-handed propeller conformation was induced by circularly polarized light irradiation to three amorphous molecules with trigonal symmetry, and the molecules with induced chirality efficiently exhibited blue circularly polarized luminescence. In...

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