Alkyl chain engineering of chlorinated acceptors for elevated solar conversion

2020 ◽  
Vol 8 (18) ◽  
pp. 8903-8912 ◽  
Author(s):  
Daize Mo ◽  
Hui Chen ◽  
Jiadong Zhou ◽  
Ningning Tang ◽  
Liang Han ◽  
...  
Keyword(s):  
Single Crystal ◽  
Alkyl Chain ◽  
Side Chains ◽  
Solar Conversion ◽  
Interpenetrated Structure

A chlorinated acceptor with 2-butyloctyl side chains and a 3D interpenetrated structure in the single crystal shows excellent PCE up to 16.43%.

scholarly journals Effect of Side-Chain Variation on Single-Crystalline Structures for Revealing the Structure–Property Relationships of Organic Solar Cells

2020 ◽  
Vol 02 (01) ◽  
pp. 026-032
Author(s):  
Chen Yang ◽  
Liu Yuan ◽  
Ruimin Zhou ◽  
Zhen Wang ◽  
Jianqi Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Single Crystal ◽  
Crystal Structures ◽  
Organic Solar Cells ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Side Chains ◽  
Single Crystal Structures ◽  
Stacking Structure ◽  
Molecular Stacking

The molecular stacking assembly in the active layer plays a significant role in the photovoltaic performance of organic solar cells (OSCs). Here, we report two new small molecular donors with different side chains, FBT-O and FBT-H, and their corresponding fullerene-based OSCs. A slight change in the side chains led to a big difference in the power conversion efficiencies (PCEs). Although the molecular structures of the two donors are similar to each other, PCEs of the devices based on FBT-O were almost three times higher than those of the devices based on FBT-H, with manifold short-circuit current density, fill factor, as well as three orders of magnitude enhancement in the hole mobility. The difference in their single crystal structures was thoroughly investigated, whereby the FBT-O exhibited better planarity leading to appropriate phase separation and domain size. Furthermore, two-dimensional grazing-incidence wide-angle X-ray scattering results of the blend films revealed that the two donors retained a similar stacking structure as compared to the single-crystal structures, thus, establishing a clear relationship between the molecular stacking structure and the device performance.

Alkyl chain dynamics in perovskite bilayers and their variation with structural phase as studied by powder and single crystal NMR

1996 ◽  
Vol 105 (7) ◽  
pp. 2891-2905 ◽  
Author(s):  
H. Zhang ◽  
N. P. Kulshrestha ◽  
S. E. Woehler ◽  
R. J. Wittebort
Keyword(s):  
Single Crystal ◽  
Alkyl Chain ◽  
Structural Phase ◽  
Chain Dynamics

scholarly journals Polythiophenes Containing Oligo(oxyethylene) Side Chains as a Thin Film on a ZnSe Single Crystal Surface

2005 ◽  
Vol 206 (10) ◽  
pp. 1006-1014 ◽  
Author(s):  
Rick van Beek ◽  
Leonardus W. Jenneskens ◽  
Aneliya N. Zdravkova ◽  
Jan P. J. M. van der Eerden ◽  
Cornelis A. van Walree
Keyword(s):  
Thin Film ◽  
Single Crystal ◽  
Crystal Surface ◽  
Side Chains ◽  
Single Crystal Surface ◽  
Znse Single Crystal

Single-alkyl and multi-alkyl chain-containing amphiphilic oligomers with several sugar side chains: solution properties and nanostructural analysis of aggregates by SANS

2017 ◽  
Vol 295 (5) ◽  
pp. 793-802 ◽  
Author(s):  
Tomokazu Yoshimura ◽  
Yuka Nakatani ◽  
Keisuke Matsuoka ◽  
Kazuhiro Akutsu ◽  
Hiroki Iwase
Keyword(s):  
Alkyl Chain ◽  
Side Chains ◽  
Solution Properties

A Planar-Chiral Pillar[5]arene-Based Monophosphine Ligand with Induced Chirality at the Biaryl Axis

Synlett ◽  
2018 ◽  
Vol 29 (16) ◽  
pp. 2167-2170 ◽  
Author(s):  
Yuuya Nagata ◽  
Tomoki Ogoshi ◽  
Michinori Suginome ◽  
Yasuo Shimada ◽  
Tsuyoshi Nishikawa ◽  
...  
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Asymmetric Catalysis ◽  
Cd Spectroscopy ◽  
Asymmetric Reactions ◽  
Side Chains ◽  
Chiral Ligand ◽  
X Ray Diffraction ◽  
Chirality Transfer ◽  
X Ray

A planar-chiral pillar[5]arene with cyclohexylmethoxy side chains and a pendant diphenylphosphine was prepared and used as a chiral ligand in asymmetric reactions. Chirality transfer from the planar-chiral pillar[5]arene scaffold to the chiral biaryl moiety was demonstrated by circular dichroism (CD) spectroscopy, single-crystal X-ray diffraction analysis, and asymmetric catalysis.

scholarly journals Adsorption Properties of Soft Hydrophobically Functionalized PSS/MA Polyelectrolytes

2021 ◽  
Vol 5 (1) ◽  
pp. 3
Author(s):  
Ewelina Jarek ◽  
Zofia Krasińska-Krawet ◽  
Tomasz Kruk ◽  
Łukasz Lamch ◽  
Sylwia Ronka ◽  
...  
Keyword(s):  
Solid Surface ◽  
Alkyl Chain ◽  
Water Structure ◽  
Building Blocks ◽  
Adsorption Properties ◽  
Attenuated Total Reflection ◽  
Side Chains ◽  
Adsorption Method ◽  
Present Contribution ◽  
Grafting Ratio

We investigated the adsorption properties of the newly synthesized, hydrophobically functionalized polyelectrolyte (HF-PE), poly(4-styrenesulfonic-co-maleic acid) copolymer (PSS/MA). The hydrophobic alkyl side chains (C12 or C16) were incorporated into the polyelectrolyte backbone via the labile amid linker to obtain the soft HF-PE product with the assumed amount of 15% and 40% degree of grafting for every length of the alkyl chain, i.e., PSS/MA-g-C12NH2 (15% or 40%) as well as PSS/MA-g-C16NH2 (15% or 40%). In the present contribution, we determined both the effect of grafting density and the length of alkyl chain on adsorption at water/air and water/decane interfaces, as well as on top of the polyelectrolyte multilayer (PEM) deposited on a solid surface. The dependence of the interfacial tension on copolymer concentration was investigated by the pendant drop method, while the adsorption at solid surface coated by poly(diallyldimethylammonium chloride)/poly(styrene sulphonate) PEM by the quartz crystal microbalance with dissipation (QCM-D), attenuated total reflection Fourier transform infrared spectroscopy (FTIR-ATR) and contact angle analysis. We found that surface activity of the hydrophobized copolymer was practically independent of the grafting ratio for C16 side chains, whereas, for C12, the copolymer with a lower grafting ratio seemed to be more surface active. The results of QCM-D and FTIR-ATR experiments confirmed the adsorption of hydrophobized copolymer at PEM along with the modification of water structure at the interface. Finally, it can be concluded that the hydrophobically modified PSS/MA can be successfully applied either as the efficacious emulsifier for the formation of (nano)emulsions for further active substances encapsulation using the sequential adsorption method or as one of the convenient building blocks for the surface modification materials.

Influence of alkyl chain length in S,N-heteropentacenes on the performance of organic solar cells

2018 ◽  
Vol 2 (5) ◽  
pp. 959-968 ◽  
Author(s):  
Tanja D. Leitner ◽  
Astrid Vogt ◽  
Duško Popović ◽  
Elena Mena-Osteritz ◽  
Karsten Walzer ◽  
...  
Keyword(s):  
Solar Cells ◽  
Chain Length ◽  
Organic Solar Cells ◽  
Alkyl Chain ◽  
Alkyl Chain Length ◽  
Side Chains ◽  
Alkyl Side Chains

Acceptor-substituted S,N-heteropentacenes with systematically varied alkyl side chains were prepared and implemented as donors in vacuum-processed OSCs giving devices with efficiencies in the range of 4–6%. An odd–even effect with respect to the length of the alkyl side chains is noted.

Selectivity assessment in host–guest complexes from single-crystal X-ray diffraction data: the cavitand–alcohol case

CrystEngComm ◽  
2014 ◽  
Vol 16 (48) ◽  
pp. 10987-10996 ◽  
Author(s):  
Rita De Zorzi ◽  
Giovanna Brancatelli ◽  
Monica Melegari ◽  
Roberta Pinalli ◽  
Enrico Dalcanale ◽  
...  
Keyword(s):  
Solid State ◽  
Single Crystal ◽  
Single Crystals ◽  
Diffraction Data ◽  
Alkyl Chain ◽  
X Ray Diffraction ◽  
X Ray ◽  
Competition Binding ◽  
State Selectivity

The solid-state selectivity of a cavitand receptor towards short alkyl chain alcohols was evaluated by analysis of X-ray diffraction data of isomorphous single crystals grown in competition binding experiments.

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