Controlling Blend Film Morphology by Varying Alkyl Side Chain in Highly Coplanar Donor–Acceptor Copolymers for Photovoltaic Application

2011 ◽  
Vol 44 (16) ◽  
pp. 6370-6381 ◽  
Author(s):  
Yaowen Li ◽  
Yujin Chen ◽  
Xing Liu ◽  
Zhong Wang ◽  
Xiaoming Yang ◽  
...  
Keyword(s):  
Side Chain ◽  
Film Morphology ◽  
Alkyl Side Chain ◽  
Blend Film ◽  
Photovoltaic Application ◽  
Donor Acceptor

Significant enhancement of responsivity of organic photodetectors upon molecular engineering

2019 ◽  
Vol 7 (19) ◽  
pp. 5739-5747 ◽  
Author(s):  
Lei Lv ◽  
Jinde Yu ◽  
Xinyu Sui ◽  
Jianfei Wu ◽  
Xiaohan Dong ◽  
...  
Keyword(s):  
Optical Absorption ◽  
Molecular Engineering ◽  
Significant Enhancement ◽  
Side Chain ◽  
Film Morphology ◽  
Blend Film ◽  
Organic Photodetectors

Upon incorporating S⋯O noncovalent conformational locks and side chain engineering, the optical absorption and blend film morphology of molecular acceptors are effectively tuned, resulting in an enhanced photocurrent and thus a higher responsivity (from 70.5 mA W−1 to 291.3 mA W−1) for P3HT-based OPDs.

scholarly journals Synthesis of Bithiophene-Based D-A1-D-A2 Terpolymers with Different A2 Moieties for Polymer Solar Cells via Direct Arylation

Polymers ◽  
2019 ◽  
Vol 11 (1) ◽  
pp. 55 ◽  
Author(s):  
Jinfeng Huang ◽  
Zhenkun Lin ◽  
Wenhuai Feng ◽  
Wen Wang
Keyword(s):  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Energy Levels ◽  
Open Circuit ◽  
Side Chain ◽  
Film Morphology ◽  
Photovoltaic Properties ◽  
Direct Arylation ◽  
Blend Film ◽  
Highest Occupied Molecular Orbital

A series of bithiophene (2T)-based D-A1-D-A2 terpolymers with different A2 moieties were prepared via direct arylation reaction. In these terpolymers, pyrrolo[3,4-c]pyrrole-1,4-dione (DPP) was selected as the first electron-accepting (A1) moiety, 2,1,3-benzothiadiazole (BT) or fluorinated benzothiadiazole (FBT) or octyl-thieno[3,4-c]pyrrole-4,6-dione (TPD) or 2,1,3-benzoselendiazole (SeT) was selected as the second electron-accepting (A2) moiety, while bithiophene with hexyl side chain was used as the electron-donating moiety. The UV-vis absorption, electrochemical properties, blend film morphology, and photovoltaic properties were studied to explore the effects of the A2 moiety. It is shown that these terpolymer films exhibit broad absorption (350–1000 nm), full width at half-maximum of more than 265 nm and ordered molecular packing. Varying the A2 moiety could affect the energy levels and blend film morphology leading to different polymer solar cell (PSC) performances of these (2T)-based D-A1-D-A2 terpolymers. As a result, the highest Jsc of 10.70 mA/cm2 is achieved for Polymer 1 (P1) with BT as A2 moiety, while the higher highest occupied molecular orbital (HOMO) level limits the open circuit voltage (Voc) and leads to a power conversion efficiency (PCE) of 3.46%.

Donor–acceptor–donor conjugated oligomers based on isoindigo and anthra[1,2-b]thieno[2,3-d]thiophene for organic thin-film transistors: the effect of the alkyl side chain length on semiconducting properties

2015 ◽  
Vol 3 (29) ◽  
pp. 7567-7574 ◽  
Author(s):  
Jing Shao ◽  
Xiaojie Zhang ◽  
Hongkun Tian ◽  
Yanhou Geng ◽  
Fosong Wang
Keyword(s):  
Thin Film Transistors ◽  
Field Effect ◽  
Hole Mobility ◽  
Organic Thin Film Transistors ◽  
Side Chain ◽  
Conjugated Oligomers ◽  
Organic Thin Film ◽  
Alkyl Side Chain ◽  
Semiconducting Properties ◽  
Donor Acceptor

Donor–acceptor–donor conjugated oligomers based on anthra[1,2-b]thieno[2,3-d]thiophene and isoindigo with a field-effect hole mobility of up to 0.72 cm2V−1s−1have been developed.

Increased charge carrier mobility and molecular packing of a solution sheared diketopyrrolopyrrole-based donor–acceptor copolymer by alkyl side chain modification

2019 ◽  
Vol 7 (12) ◽  
pp. 3665-3674 ◽  
Author(s):  
Mike Hambsch ◽  
Tim Erdmann ◽  
Annabel R. Chew ◽  
Sigrid Bernstorff ◽  
Alberto Salleo ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Molecular Packing ◽  
Chain Extension ◽  
Side Chain ◽  
Alkyl Side Chain ◽  
Donor Acceptor

Side chain extension leads to improved charge carrier mobility in diketopyrrolopyrrole-based donor–acceptor copolymers.

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.

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.

Sign in / Sign up

Export Citation Format

Share Document