Simultaneous enhancement of the molecular planarity and the solubility of non-fullerene acceptors: effect of aliphatic side-chain substitution on the photovoltaic performance

2017 ◽  
Vol 5 (17) ◽  
pp. 7776-7783 ◽  
Author(s):  
Zhe Zhang ◽  
Miao Li ◽  
Yahui Liu ◽  
Jicheng Zhang ◽  
Shiyu Feng ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Aliphatic Side Chain

By incorporating aliphatic side chains and adjusting their lengths, non-fullerene acceptors can obtain an improved morphology and photovoltaic performance.

Influence of the sterol aliphatic side chain on membrane properties: a molecular dynamics study

2015 ◽  
Vol 17 (35) ◽  
pp. 22736-22748 ◽  
Author(s):  
João R. Robalo ◽  
J. P. Prates Ramalho ◽  
Daniel Huster ◽  
Luís M. S. Loura
Keyword(s):  
Molecular Dynamics ◽  
Membrane Properties ◽  
Side Chain ◽  
Side Chains ◽  
Aliphatic Side Chain ◽  
Acyl Chains ◽  
Hydrophobic Matching ◽  
Phospholipid Acyl Chains

Cholesterol provides best hydrophobic matching, induces maximal membrane ordering, and displays highest preference for saturated phospholipid acyl chains, among a homologous ser ies of sterols with side chains of varying lengths.

scholarly journals An investigation of the role acceptor side chains play in the processibility and efficiency of organic solar cells fabricated from small molecular donors featuring 3,4-ethylenedioxythiophene cores

RSC Advances ◽  
2018 ◽  
Vol 8 (69) ◽  
pp. 39231-39240
Author(s):  
N. A. Mica ◽  
S. A. J. Almahmoud ◽  
L. Krishnan Jagadamma ◽  
G. Cooke ◽  
I. D. W. Samuel
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Chemical Nature ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Acceptor Side

The chemical nature of the acceptor side chain plays an important role in the processability and photovoltaic performance of EDOT-based small molecule donors.

Systematic structure modification of a low bandgap conjugated polymer improves thin film morphology and photovoltaic performance by incorporating naphthalene into side chains

2015 ◽  
Vol 3 (29) ◽  
pp. 7669-7676 ◽  
Author(s):  
Ying Sun ◽  
Chao Zhang ◽  
Qizan Huang ◽  
Bin Dai ◽  
Baoping Lin ◽  
...  
Keyword(s):  
Thin Film ◽  
Active Layer ◽  
Conjugated Polymer ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Film Morphology ◽  
Structure Modification ◽  
Low Bandgap ◽  
Systematic Structure

A naphthalene group was incorporated into the polymer side chain to help the active layer spontaneously form good film morphology.

scholarly journals Effects of side chain isomerism on the physical and photovoltaic properties of indacenodithieno[3,2-b]thiophene–quinoxaline copolymers: toward a side chain design for enhanced photovoltaic performance

2014 ◽  
Vol 2 (44) ◽  
pp. 18988-18997 ◽  
Author(s):  
Xiaofeng Xu ◽  
Zhaojun Li ◽  
Olof Bäcke ◽  
Kim Bini ◽  
David I. James ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Photovoltaic Properties

Polymers based on quinoxaline and indacenodithieno[3,2-b]thiophene (IDTT) withmeta-hexyl-phenyl side chains were synthesized.

Effect of linear side-chain length on the photovoltaic performance of benzodithiophene-alt-dicarboxylic ester terthiophene polymers

2019 ◽  
Vol 43 (33) ◽  
pp. 12950-12956 ◽  
Author(s):  
Kangqiao Ma ◽  
Tao Zhang ◽  
Pan Wan ◽  
Bowei Xu ◽  
Pengxin Zhou ◽  
...  
Keyword(s):  
Conjugated Polymers ◽  
Chain Length ◽  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains ◽  
Side Chain Length ◽  
Dicarboxylic Ester

Two conjugated polymers with different side chains were synthesized to study their photovoltaic performances.

Improved photovoltaic performance of a 2D-conjugated benzodithiophene-based polymer by the side chain engineering of quinoxaline

2015 ◽  
Vol 6 (23) ◽  
pp. 4290-4298 ◽  
Author(s):  
Qunping Fan ◽  
Manjun Xiao ◽  
Yu Liu ◽  
Wenyan Su ◽  
Huishan Gao ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Side Chain ◽  
Side Chains

To investigate the influence of side chains of quinoxaline on the photovoltaic performances, a novel D–A-type polymer of PBDTDT(Qx-3)-T was synthesized and characterized, in which BDT-T, T and Qx-3 were used as the donor (D) unit, π-bridge and acceptor (A) unit, respectively.

Side chain structure affects the molecular packing and photovoltaic performance of oligothiophene-based solution-processable small molecules

RSC Advances ◽  
2015 ◽  
Vol 5 (83) ◽  
pp. 67718-67726 ◽  
Author(s):  
Shang-Che Lan ◽  
Chiao-Kai Chang ◽  
Yueh-Hsin Lu ◽  
Shu-Wei Lin ◽  
Alex K.-Y. Jen ◽  
...  
Keyword(s):  
Small Molecules ◽  
Intermolecular Interactions ◽  
Photovoltaic Performance ◽  
Thiobarbituric Acid ◽  
Chain Structure ◽  
Central Core ◽  
Side Chain ◽  
Side Chains ◽  
Alkyl Side Chains ◽  
Chain Lengths

Small molecules with alkyl side chains of different lengths were prepared with 2,2′-bithiophene, terthiophene and thiobarbituric acid as the central core, spacer and end-cap. Uniform, shorter chain lengths gave stronger intermolecular interactions, favoring crystallization.

Influence of Flexible Side-Chains on the Breathing Phase Transition of Pillared Layer MOFs: A Force Field Investigation

2020 ◽  
Author(s):  
Julian Keupp ◽  
Johannes P. Dürholt ◽  
Rochus Schmid
Keyword(s):  
First Principles ◽  
Good Accuracy ◽  
Field Investigation ◽  
Square Lattice ◽  
Side Chain ◽  
Second Step ◽  
Side Chains ◽  
Dynamics Simulations ◽  
Complex Phenomena ◽  
Closed Pore

The prototypical pillared layer MOFs, formed by a square lattice of paddle-<br>wheel units and connected by dinitrogen pillars, can undergo a breathing phase<br>transition by a “wine-rack” type motion of the square lattice. We studied this not<br>yet fully understood behavior using an accurate first principles parameterized force<br>field (MOF-FF) for larger nanocrystallites on the example of Zn 2 (bdc) 2 (dabco) [bdc:<br>benzenedicarboxylate, dabco: (1,4-diazabicyclo[2.2.2]octane)] and found clear indi-<br>cations for an interface between a closed and an open pore phase traveling through<br>the system during the phase transformation [Adv. Theory Simul. 2019, 2, 11]. In<br>conventional simulations in small supercells this mechanism is prevented by periodic<br>boundary conditions (PBC), enforcing a synchronous transformation of the entire<br>crystal. Here, we extend this investigation to pillared layer MOFs with flexible<br>side-chains, attached to the linker. Such functionalized (fu-)MOFs are experimen-<br>tally known to have different properties with the side-chains acting as fixed guest<br>molecules. First, in order to extend the parameterization for such flexible groups,<br>1a new parametrization strategy for MOF-FF had to be developed, using a multi-<br>structure force based fit method. The resulting parametrization for a library of<br>fu-MOFs is then validated with respect to a set of reference systems and shows very<br>good accuracy. In the second step, a series of fu-MOFs with increasing side-chain<br>length is studied with respect to the influence of the side-chains on the breathing<br>behavior. For small supercells in PBC a systematic trend of the closed pore volume<br>with the chain length is observed. However, for a nanocrystallite model a distinct<br>interface between a closed and an open pore phase is visible only for the short chain<br>length, whereas for longer chains the interface broadens and a nearly concerted trans-<br>formation is observed. Only by molecular dynamics simulations using accurate force<br>fields such complex phenomena can be studied on a molecular level.

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