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(Natural) polymersCharacteristic dimensionCustomer publicationsGIWAXSRenewable energySelf-assembled material

Efficient perovskite photovoltaic devices using chemically doped PCDTBT as a hole-transport material

Wong-Stringer, Michael; Bishop, James E.; Smith, Joel A.; Mohamad, David K.; Parnell, Andrew J.; Kumar, Vikas; Rodenburg, Cornelia; Lidzey, David G.

It is shown that by chemically doping the carbazole-based conjugated polymer PCDTBT using the molecular materials TBP, LiTFSI and FK209, its conductivity can be increased by a factor of 105 times. Such doped PCDTBT films are used as a hole transport material (HTM) for standard architecture (CH(NH2)2PbI3)0.85(CH3NH3PbBr3)0.15 perovskite solar cells…
Xenocs
12 March 2019
(Natural) polymersCustomer publicationsGIWAXSPhase analysisRenewable energySelf-assembled material

Evolution of morphology and open-circuit voltage in alloy-energy transfer coexisting ternary organic solar cells

Xia, Benzheng; Yuan, Liu; Zhang, Jianqi; Wang, Zaiyu; Fang, Jin; Zhao, Yifan; Deng, Dan; Ma, Wei; Lu, Kun; Wei, Zhixiang

The oligomer-type small molecule PDT2FBT-ID is applied in a polymer/small molecule/fullerene ternary system. The PTB7-Th/PDT2FBT-ID/PC71BM ternary active layer shows complementary absorption spectra, enhanced face-on orientation and energy transfer properties. Compared to the binary system, the FF of the ternary system is improved from 66.72% to 76.14% and the Jsc is…
Xenocs
12 March 2019
(Natural) polymersCompositesCustomer publicationsOrientation analysisPolymer researchSAXS

Highly Biodegradable and Tough Polylactic Acid–Cellulose Nanocrystal Composite

Muiruri, Joseph K.; Liu, Songlin; Teo, Wern Sze; Kong, Junhua; He, Chaobin

Poly(l-lactide) cellulose nanocrystals-filled nanocomposites were fabricated by blending of cellulose nanocrystals-g-rubber-g-poly(d-lactide) (CNC-rD-PDLA) and commercial PLLA, in which CNC-g-rubber was synthesized by ring opening polymerization (ROP) of d-lactide and a ε-caprolactone mixture to obtain CNC-P(CL-DLA), followed by further polymerization of d-lactide to obtain CNC-rD-PDLA. X-ray…
Xenocs
12 March 2019
(Natural) polymersCustomer publicationsPhase analysisPolymer researchSAXS

High molecular weight poly(butylene succinate-co-furandicarboxylate) with 10mol% of BF unit: Synthesis, crystallization-melting behavior and mechanical properties

Peng, Shuangbao; Bu, Zhiyang; Wu, Linbo; Li, Bo-Geng; Dubois, Philippe

In this study, high molecular weight poly(butylene succinate-co-furandicarboxylate) with 10mol% of butylene furandicarboxylate unit (PBSF10) was synthesized and its crystal structure and crystallization-melting behaviors were investigated by means of WAXD, SAXS, DSC and POM. The tensile properties were also assessed. The crystal structure of PBSF10 is found to be the…
Xenocs
12 March 2019
(Natural) polymersCustomer publicationsOrientation analysisPolymer researchUSAXSWAXS

Inter-fibrillar tie chains determined critical stress of large strain cavitation in tensile stretched isotactic polypropylene

Lu, Ying; Lyu, Dong; Xiong, Bijin; Chen, Ran; Men, Yongfeng

Isotactic polypropylene (iPP) samples with pure mesophase, pure α modification, and coexistence of both phases were used to investigate the sudden stress whitening triggered at large strain during stretching. This whitening was caused by the cavities generated in the highly oriented amorphous network. The critical stresses of such cavitation-induced whitening…
Xenocs
12 March 2019
(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…
Xenocs
12 March 2019
ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialNanoparticles & colloidsParticle size and size distributionParticlesSAXSTechnique

Contribution to Accurate Spherical Gold Nanoparticle Size Determination by Single-Particle Inductively Coupled Mass Spectrometry: A Comparison with Small-Angle X-ray Scattering

Geertsen, Valérie; Barruet, Elodie; Gobeaux, Frédéric; Lacour, Jean-Luc; Taché, Olivier

Small-angle X-ray scattering spectroscopy (SAXS) is the method of choice for nanoparticle diameter and concentration determination. On the one hand, it is metrologically traceable for spherical nanoparticle mean diameter determination and does not require any sample preparation or calibration. On the other hand, single-particle inductively coupled mass spectrometry (SPICPMS) is…
Xenocs
12 March 2019
Characteristic dimensionCustomer publicationsLipidsSAXSStructural biology

Disruptive effect of tocopherol oxalate on DPPC liposome structure: DSC, SAXS, and fluorescence anisotropy studies

Neunert, Grażyna; Tomaszewska-Gras, Jolanta; Siejak, Przemyslaw; Pietralik, Zuzanna; Kozak, Maciej; Polewski, Krzysztof

α-Tocopherol oxalate (TO), a tocopherol ester derivative, was investigated for its effect on the structural changes of fully hydrated 1,2-dipalmitoyl-sn-glycero-3-phosphocholine (DPPC) liposomes, as a function of concentration and temperature, by applying differential scanning calorimetry (DSC), small angle X-ray scattering (SAXS), and DPH fluorescence anisotropy methods. The DSC and DPH…
Xenocs
12 March 2019
(Hydro)gelsCharacteristic dimensionCompositesCustomer publicationsNanoparticles & colloidsSAXSShape

Smart release of antimicrobial ZnO nanoplates from a pH-responsive keratin hydrogel

Villanueva, María E.; Cuestas, María L.; Pérez, Claudio J.; Campo Dall′ Orto, Viviana; Copello, Guillermo J.

A smart antibacterial biomaterial based on a keratin hydrogel with pH-dependent behavior and Zinc Oxide nanoplates as biocide agent has been developed. The pH of a chronic wound is basic due to bacterial metabolism. Originally shrank at acid pH, keratin hydrogels swell upon contact with a bacterial contaminated media leading…
Xenocs
12 March 2019