Toward high-performance terahertz-region liquid crystals: Computational modeling of fused ring nematic and discotic mesogens

2021 ◽  
Author(s):  
Kenneth L. Marshall ◽  
Baris E. Ugur ◽  
William Scullin
Keyword(s):  
Liquid Crystals ◽  
Computational Modeling ◽  
High Performance ◽  
Terahertz Region ◽  
Fused Ring ◽  
Discotic Mesogens

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

scholarly journals Lateral PbS Photovoltaic Devices for High Performance Infrared and Terahertz Photodetectors

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1692
Author(s):  
Emmanuel K. Ampadu ◽  
Jungdong Kim ◽  
Eunsoon Oh
Keyword(s):  
High Performance ◽  
Room Temperature ◽  
Photovoltaic Device ◽  
Photovoltaic Devices ◽  
Temperature Spectrum ◽  
Terahertz Region ◽  
Room Temperature Spectrum ◽  
Ftir Spectrometer ◽  
Titanium Substrates ◽  
Deposition Conditions

We fabricated a lateral photovoltaic device for use as infrared to terahertz (THz) detectors by chemically depositing PbS films on titanium substrates. We discussed the material properties of PbS films grown on glass with varying deposition conditions. PbS was deposited on Ti substrates and by taking advantage of the Ti/PbS Schottky junction, we discussed the photocurrent transients as well as the room temperature spectrum response measured by Fourier transform infrared (FTIR) spectrometer. Our photovoltaic PbS device operates at room temperature for wavelength ranges up to 50 µm, which is in the terahertz region, making the device highly applicable in many fields.

scholarly journals Calamitic liquid crystals involving fused ring and their metallomesogens

2017 ◽  
Vol 6 (2) ◽  
pp. 331-347
Author(s):  
Bharat Thaker ◽  
Nilesh Limbachiya ◽  
Kalpesh Patel ◽  
Neeraj Patel
Keyword(s):  
Liquid Crystals ◽  
Fused Ring

scholarly journals Validation of high-performance liquid chromatographic method for analysis of fluconazole in microemulsions and liquid crystals

2014 ◽  
Vol 50 (2) ◽  
pp. 381-389 ◽  
Author(s):  
Hilris Rocha e Silva ◽  
Fernanda Kolenyak dos Santos ◽  
Gabriela Marielli da Luz ◽  
Marlus Chorilli ◽  
Maria Palmira Daflon Gremião
Keyword(s):  
Liquid Crystals ◽  
High Performance ◽  
High Performance Liquid Chromatographic ◽  
Fungal Diseases ◽  
Cutaneous Lesions ◽  
Ich Guidelines ◽  
Liquid Chromatographic Method ◽  
Site Of Action ◽  
Copaiba Oil ◽  
Liquid Chromatographic

In recent decades, there has been a significant increase in the incidence of fungal diseases. Certain fungal diseases cause cutaneous lesions and in the usual treatment, generally administred orally, the drug reaches the site of action with difficulty and its concentration is too low. An approach much explored in recent years is the development of nanotechnology-based drug delivery systems, and microemulsions (ME) and liquid crystals (LC) are promising. ME and LC were developed with oleic acid or copaiba oil as the oil phase, propoxyl (5OP) ethoxyl (20 OE) cetyl alcohol as surfactant and water. An analytical method to assess the incorporation of fluconazole (FLU) in the systems under study was validated according to guidelines of the International Conference on Harmonization (ICH) guidelines and the Brazilian Food, Drug and Sanitation Agency (ANVISA). The method was conducted on a C18-RP column (250 × 4.6 mm i.d.), maintained at room temperature. The mobile phase consisted of acetonitrile and water (50:50, v/v), run at a flow rate of 1.0mL/min and using ultraviolet detection at 210nm. The chromatographic separation was obtained with a retention time of 6.3min, and was linear in the range of 20-400 µg/mL (r2=0.9999). The specificity showed no interference of the excipients. The accuracy was 100.76%. The limits of detection and quantitation were 0.057 and 0.172 µg.mL-1, respectively. Moreover, method validation demonstrated satisfactory results for precision and robustness. The proposed method was applied for the analysis of the incorporation of FLU in ME and LC, contributing to improve the quality control and to assure the therapeutic efficacy.

A Fully Non‐fused Ring Acceptor with Planar Backbone and Near‐IR Absorption for High Performance Polymer Solar Cells

2020 ◽  
Vol 132 (50) ◽  
pp. 22903-22909
Author(s):  
Ya‐Nan Chen ◽  
Miao Li ◽  
Yunzhi Wang ◽  
Jing Wang ◽  
Ming Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Polymer Solar Cells ◽  
Ir Absorption ◽  
Near Ir ◽  
High Performance Polymer ◽  
Fused Ring

scholarly journals Functionalizing triptycene to create 3D high-performance non-fullerene acceptors

RSC Advances ◽  
2020 ◽  
Vol 10 (20) ◽  
pp. 12004-12012
Author(s):  
Yezi Yang ◽  
Chuang Yao ◽  
Lei Li ◽  
Maolin Bo ◽  
Jianfeng Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
End Groups ◽  
Fused Ring ◽  
Ring Core

A 3D fused-ring core, combined with three electron-withdrawing end groups, is used to construct novel three-bladed propeller-shaped FREAs.

scholarly journals Silicon and oxygen synergistic effects for the discovery of new high-performance nonfullerene acceptors

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Ying Qin ◽  
Hui Chen ◽  
Jia Yao ◽  
Yue Zhou ◽  
Yongjoon Cho ◽  
...  
Keyword(s):  
Organic Electronics ◽  
High Performance ◽  
Synergistic Effects ◽  
Environmentally Benign ◽  
Basic Unit ◽  
Photovoltaic Materials ◽  
Main Challenge ◽  
Fused Ring ◽  
Donor Acceptor ◽  
Synthesis Routes

AbstractIn organic electronics, an aromatic fused ring is a basic unit that provides π-electrons to construct semiconductors and governs the device performance. The main challenge in developing new π-skeletons for tuning the material properties is the limitation of the available chemical approach. Herein, we successfully synthesize two pentacyclic siloxy-bridged π-conjugated isomers to investigate the synergistic effects of Si and O atoms on the geometric and electronic influence of π-units in organic electronics. Notably, the synthesis routes for both isomers possess several advantages over the previous approaches for delivering conventional aromatic fused-rings, such as environmentally benign tin-free synthesis and few synthetic steps. To explore their potential application as photovoltaic materials, two isomeric acceptor–donor–acceptor type acceptors based on these two isomers were developed, showing a decent device efficiency of 10%, which indicates the great potential of this SiO-bridged ladder-type unit for the development of new high-performance semiconductor materials.

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