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.

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

Enabling discrimination capability in an achiral F6BT-based organic semiconductor transistor via circularly polarized light induction

2020 ◽  
Vol 8 (27) ◽  
pp. 9271-9275
Author(s):  
Junjie Cheng ◽  
Feng Ge ◽  
Can Zhang ◽  
Yan Kuai ◽  
Penghui Hou ◽  
...  
Keyword(s):  
Organic Semiconductor ◽  
High Performance ◽  
Polarized Light ◽  
Light Induction ◽  
Circularly Polarized Light ◽  
Circularly Polarized ◽  
Discrimination Capability

High-performance chiroptical sensing in achiral poly(fluorene-alt-benzothiadiazole) based OFETs could be enabled by circularly polarized light induction.

Theoretical design of benzo[1,2-b:3,4-b′:5,6-b′′]tristhianaphthene and its derivatives as high performance organic semiconductors

2015 ◽  
Vol 14 (07) ◽  
pp. 1550058 ◽  
Author(s):  
Jun Yin ◽  
Kadali Chaitanya ◽  
Xue-Hai Ju
Keyword(s):  
Charge Carrier ◽  
Charge Transport ◽  
Transport Properties ◽  
Organic Semiconductors ◽  
High Performance ◽  
Reorganization Energy ◽  
Molecular Structures ◽  
Geometrical Structures ◽  
Subtle Change ◽  
Cyano Groups

In order to probe the effects of substituents (F and CN) attached to benzo[1,2-b:3,4-[Formula: see text]:5,6-[Formula: see text]]tristhianaphthene (BTTP) on their charge carrier transport properties, we investigated the characteristics of molecular structures and charge transport properties of BTTP and its derivatives (BTTP1, BTTP2, BTTP3, BTTP4, and BTTP5). Six crystal structures were predicted by the Monte Carlo-simulated annealing method with the embedded electrostatic potential charges method. Even a subtle change of geometrical structures may result in a great change of the reorganization energy. With increasing numbers of substituted fluorine atoms, the reorganization energy of the BTTP derivative increases, which is disadvantageous to the electron transport. In contrast, the attachment of the electron-withdrawing cyano groups to BTTP decreases the reorganization energy and raises the electron affinity, which is beneficial to electron injection and charge carrier stabilization. The introduction of cyano groups also results in an enhancement of [Formula: see text]–[Formula: see text] interaction and leads to an increase in the transfer integrals. Among the six compounds, the novel compound BTTP4 has the largest electron mobility (1.154[Formula: see text]cm[Formula: see text]) on account of its larger transfer integral and smaller reorganization energy, indicating that BTTP4 is a promising high-performance n-type organic semiconductor and worth to synthesize. The analysis of angular-resolution anisotropic mobilities for the BTTP and BTTP4 shows that it is helpful to control the orientations of the conducting channels for a better charge transport efficiency. This work provides a rational strategy for the design of high-performance n-type organic semiconductors from molecule to crystal structure.

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

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

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.

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