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Overcoming efficiency and stability limits in water-processing nanoparticular organic photovoltaics by minimizing microstructure defects

Xie, Chen; Heumüller, Thomas; Gruber, Wolfgang; Tang, Xiaofeng; Classen, Andrej; Schuldes, Isabel; Bidwell, Matthew; Späth, Andreas; Fink, Rainer H.; Unruh, Tobias; McCulloch, Iain; Li, Ning; Brabec, Christoph J.

 ApplicationCharacterizationCrystalline fractionCustomer publicationsGIWAXSMaterialNanoparticles & colloidsPhase analysisRenewable energySAXSSelf-assembled materialTechniqueThin filmsWAXS

Overcoming efficiency and stability limits in water-processing nanoparticular organic photovoltaics by minimizing microstructure defects

Xie, Chen; Heumüller, Thomas; Gruber, Wolfgang; Tang, Xiaofeng; Classen, Andrej; Schuldes, Isabel; Bidwell, Matthew; Späth, Andreas; Fink, Rainer H.; Unruh, Tobias; McCulloch, Iain; Li, Ning; Brabec, Christoph J.

Water-based semiconducting polymer nanoparticles are eco-friendly and non-toxic but their performance suffers from the surfactants. Here Xie et al. design an approach to minimize the amount of residual surfactant in these nanoparticles and make high-efficiency and stability solar…
Poly(arylene alkylene)s with pendant N -spirocyclic quaternary ammonium cations for anion exchange membranes

Huong Pham, Thanh; S. Olsson, Joel; Jannasch, Patric

 (Natural) polymersApplicationCharacterizationCrystalline fractionCustomer publicationsMaterialRenewable energySAXSTechnique

Poly(arylene alkylene)s with pendant N -spirocyclic quaternary ammonium cations for anion exchange membranes

Huong Pham, Thanh; S. Olsson, Joel; Jannasch, Patric

Journal of Materials Chemistry A, 2018, vol 6, 34, pp. 16537-16547DOI:10.1039/C8TA04699AVisit the full articleBack to the overview
Liquid crystal phantom for validation of microscopic diffusion anisotropy measurements on clinical MRI systems

Nilsson, Markus; Larsson, Johan; Lundberg, Dan; Szczepankiewicz, Filip; Witzel, Thomas; Westin, Carl-Fredrik; Bryskhe, Karin; Topgaard, Daniel

 ApplicationCharacteristic dimensionCharacterizationCustomer publicationsLiquid crystalsMaterialOtherPhase analysisSAXSSurfactantsTechnique

Liquid crystal phantom for validation of microscopic diffusion anisotropy measurements on clinical MRI systems

Nilsson, Markus; Larsson, Johan; Lundberg, Dan; Szczepankiewicz, Filip; Witzel, Thomas; Westin, Carl-Fredrik; Bryskhe, Karin; Topgaard, Daniel

Purpose To develop a phantom for validating MRI pulse sequences and data processing methods to quantify microscopic diffusion anisotropy in the human brain. Methods Using a liquid crystal consisting of water, detergent, and hydrocarbon, we designed a 0.5-L spherical phantom showing the theoretically highest possible degree of microscopic anisotropy. Data…
Scalable, anisotropic transparent paper directly from wood for light management in solar cells

Jia, Chao; Li, Tian; Chen, Chaoji; Dai, Jiaqi; Kierzewski, Iain Michael; Song, Jianwei; Li, Yiju; Yang, Chunpeng; Wang, Chengwei; Hu, Liangbing

 ApplicationCharacterizationCustomer publicationsFibersMaterialOrientation analysisRenewable energySAXSTechnique

Scalable, anisotropic transparent paper directly from wood for light management in solar cells

Jia, Chao; Li, Tian; Chen, Chaoji; Dai, Jiaqi; Kierzewski, Iain Michael; Song, Jianwei; Li, Yiju; Yang, Chunpeng; Wang, Chengwei; Hu, Liangbing

The growing demand for flexible electronics and solar energy conversion devices has fueled a search for high-quality paper-based materials with excellent mechanical flexibility and optical properties such as high transparency and haze. Despite the tremendous efforts have been dedicated to developing paper-based materials with high transparency or high haze, challenges…
Adduct modified nano-clay mineral dispersed polystyrene nanocomposites as advanced corrosion resistance coatings for aluminum alloys

Raju, Annu; Lakshmi, V.; Vishnu Prataap, R. K.; Resmi, V. G.; Rajan, T. P. D.; Pavithran, C.; Prasad, V. S.; Mohan, S.

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCompositesCustomer publicationsMaterialPolymer researchSAXSTechniqueWAXS

Adduct modified nano-clay mineral dispersed polystyrene nanocomposites as advanced corrosion resistance coatings for aluminum alloys

Raju, Annu; Lakshmi, V.; Vishnu Prataap, R. K.; Resmi, V. G.; Rajan, T. P. D.; Pavithran, C.; Prasad, V. S.; Mohan, S.

The present investigation is on processing of a series of clay polystyrene nanocomposite (CPS) coatings containing different adduct modified montmorillonite (Mt) for corrosion resistance coating applications. The corrosion properties were studied using potentiodynamic and electrochemical impedance spectroscopy measurements in 3.5wt% aqueous NaCl electrolyte. The CPS coatings offered enhanced…
Anomalies in the low frequency vibrational density of states for a polymer with intrinsic microporosity – the Boson peak of PIM-1

Zorn, Reiner; Yin, Huajie; Lohstroh, Wiebke; Harrison, Wayne; Budd, Peter M.; Pauw, Brian R.; Böhning, Martin; Schönhals, Andreas

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsFractal dimensionMaterialPolymer researchSAXSTechniqueWAXS

Anomalies in the low frequency vibrational density of states for a polymer with intrinsic microporosity – the Boson peak of PIM-1

Zorn, Reiner; Yin, Huajie; Lohstroh, Wiebke; Harrison, Wayne; Budd, Peter M.; Pauw, Brian R.; Böhning, Martin; Schönhals, Andreas

Polymers with intrinsic microporosity are promising candidates for the active separation layer in gas separation membranes. Here, the vibrational density of states (VDOS) for PIM-1, the prototypical polymer with intrinsic microporosity, is investigated by means of inelastic neutron scattering. The results are compared to data measured for a more conventional…
Immobilization of the enzyme invertase in SBA-15 with surfaces functionalized by different organic compounds

Ribeiro, Livia M. O.; Falleiros, Larissa N. S. S.; de Resende, Miriam M.; Ribeiro, Eloízio J.; Almeida, Renata M. R. G.; da Silva, Antonio O. S.

 Customer publicationsPhase analysisPorous materialSAXSStructural biology

Immobilization of the enzyme invertase in SBA-15 with surfaces functionalized by different organic compounds

Ribeiro, Livia M. O.; Falleiros, Larissa N. S. S.; de Resende, Miriam M.; Ribeiro, Eloízio J.; Almeida, Renata M. R. G.; da Silva, Antonio O. S.

The search for appropriate supports for enzyme immobilization has attracted increasing interest in the field of biocatalysis. Immobilized enzymes are catalysts of enormous industrial interest because they combine the advantages of heterogeneous catalysis with the high selectivity and mild operational conditions of enzymes. This study evaluated the use of different…
Anisotropic nanoparticles as templates for the crystalline structure of an injection-molded isotactic polypropylene/TiO2 nanocomposite

Zhang, Peng; Kraus, Tobias

 (Natural) polymersCompositesCustomer publicationsOrientation analysisPolymer researchSAXSWAXS

Anisotropic nanoparticles as templates for the crystalline structure of an injection-molded isotactic polypropylene/TiO2 nanocomposite

Zhang, Peng; Kraus, Tobias

We study the molecular origins of anisotropy in a semicrystalline polymer nanocomposite that is caused by aligned, elongated filler nanoparticles. Our study is based on spatially resolved 2D WAXS/SAXS data that indicates the arrangement of molecules, lamellae, and filler particles in the composite. Isotactic polypropylene (IPP) samples filled with anisotropic…
Effect of high molecular weight on pore formation and various properties of microporous membrane used for lithium-ion battery separator

Xu, Guan; Ding, Lei; Wu, Tong; Xiang, Ming; Yang, Feng

 (Natural) polymersCustomer publicationsPhase analysisPolymer researchSAXS

Effect of high molecular weight on pore formation and various properties of microporous membrane used for lithium-ion battery separator

Xu, Guan; Ding, Lei; Wu, Tong; Xiang, Ming; Yang, Feng

In this article, iPP cast films with high molecular weight in middle layer were prepared to investigate the effect of high molecular weight component on pore formation and mechanical strength. The results of DSC, SEM and 2D-XRD indicated that higher molecular weight and die draw ratio (DDR) would not alter…