An isomerized alkyl side chain enables efficient nonfullerene organic photovoltaics with good tolerance to pre/post-treatments

2021 ◽  
Vol 5 (7) ◽  
pp. 3050-3060 ◽  
Author(s):  
Chenyu Han ◽  
Huanxiang Jiang ◽  
Pengchao Wang ◽  
Lu Yu ◽  
Jianxiao Wang ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Good Tolerance

An alkyl isomerization strategy is reported to finely modulate the crystallinity of nonfullerene acceptors as well as their photovoltaic responses to post-treatments.

Oligothiophenes and alkyl side-chain arrangement the structure-property study of their diketopyrrolopyrrole copolymers for organic photovoltaics

2018 ◽  
Vol 61 ◽  
pp. 185-196 ◽  
Author(s):  
Jhao-Lin Wu ◽  
Chiao-Wen Lin ◽  
Jan Golder ◽  
Tsu-Wei Lin ◽  
Chin-Ti Chen ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Structure Property

scholarly journals Mapping the Side-Chain Length of Small Molecule Acceptors towards the Optimal Hierarchical Morphology in Ternary Organic Solar Cells

2021 ◽  
Author(s):  
Zichun Zhou ◽  
Shengjie Xu ◽  
Xiaozhang Zhu
Keyword(s):  
Chain Length ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Electron Acceptors ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Side Chain Length ◽  
Hierarchical Morphology

Hierarchical morphology has been clearly demonstrated to improve all performance parameters in ternary organic photovoltaics but shows strong dependence on the molecular structures. Here we develop four small molecule electron acceptors with different alkyl chain length to find the optimal solution of alkyl chain towards the defined hierarchical morphology and carry out a clear and comprehensive investigation of the alkyl chain length effects on the structure-morphology-device performance relationships in ternary blend. There is a positive correlation between the power conversion efficiencies of the four ternary systems and their short-circuit current density parameters, manifesting the significance of distinguishing optimal alkyl side chain length of small molecule electron acceptors for defined hierarchical morphology to afford efficient carrier generation. The non-optimal side chains would retard the BTR crystalline and make the PC<sub>71</sub>BM domain sizes incontrollable, leading to a morphology without a defined hierarchy. Such a detailed mapping of the alkyl side chain length of small molecule electron acceptors provide a new insight into the materials combinations for the next-step high performance multi-component organic photovoltaics

scholarly journals Investigation of the Anti-Methicillin-Resistant Staphylococcus aureus Activity of (+)-Tanikolide- and (+)-Malyngolide-Based Analogues Prepared by Asymmetric Synthesis

2021 ◽  
Vol 22 (12) ◽  
pp. 6400
Author(s):  
Joseph Breheny ◽  
Cian Kingston ◽  
Robert Doran ◽  
Joao Anes ◽  
Marta Martins ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Asymmetric Synthesis ◽  
Methicillin Resistant Staphylococcus Aureus ◽  
Antimicrobial Properties ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Methicillin Resistant ◽  
Antibacterial And Antifungal

Herein, we report antibacterial and antifungal evaluation of a series of previously prepared (+)-tanikolide analogues. One analogue, (4S,6S)-4-methyltanikolide, displayed promising anti-methicillin-resistant Staphylococcus aureus activity with a MIC of 12.5 µg/mL. Based on the antimicrobial properties of the structurally related (−)-malyngolide, two further analogues (4S,6S)-4-methylmalyngolide and (4R,6S)-4-methylmalyngolide bearing a shortened n-nonyl alkyl side chain were prepared in the present study using a ZrCl4-catalysed deprotection/cyclisation as the key step in their asymmetric synthesis. When these were tested for activity against anti-methicillin-resistant Staphylococcus aureus, the MIC increased to 50 µg/mL.

A new class of supramolecular liquid crystals derived from azo calix[4]arene functionalized 1,3,4-thiadiazole derivatives

2019 ◽  
Vol 43 (8) ◽  
pp. 3556-3564 ◽  
Author(s):  
Vinay S. Sharma ◽  
Akshara P. Shah ◽  
Anuj S. Sharma
Keyword(s):  
Schiff Base ◽  
Liquid Crystals ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
New Class ◽  
Azo Group ◽  
Thiadiazole Derivatives ◽  
Upper Rim

A new class of bowl-shaped supramolecular liquid crystals (LCs) is described derived from calix[4]arene substituted with 1,3,4-thiadiazole derivatives, inbuilt with Schiff base and ester on the lower rim and with an azo group on the upper rim with an alkyl side chain (–OC3H7, –OC8H17).

scholarly journals Comprehensive study on the impact of the cation alkyl side chain length on the solubility of water in ionic liquids

2015 ◽  
Vol 210 ◽  
pp. 264-271 ◽  
Author(s):  
Kiki A. Kurnia ◽  
Catarina M.S.S. Neves ◽  
Mara G. Freire ◽  
Luís M.N.B.F. Santos ◽  
João A.P. Coutinho
Keyword(s):  
Ionic Liquids ◽  
Chain Length ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Side Chain Length ◽  
The Impact ◽  
Comprehensive Study
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