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Synthesis and characterization of thermoresponsive ZIF-8@PNIPAm-co-MAA microgel composites with enhanced performance as an adsorption/release platform

Allegretto, Juan A.; Giussi, Juan M.; Moya, Sergio E.; Azzaroni, Omar; Rafti, Matias

 ApplicationCharacterizationCustomer publicationsInorganic materialInorganic materialsMaterialPhase analysisPorous materialTechniqueWAXS

Synthesis and characterization of thermoresponsive ZIF-8@PNIPAm-co-MAA microgel composites with enhanced performance as an adsorption/release platform

Allegretto, Juan A.; Giussi, Juan M.; Moya, Sergio E.; Azzaroni, Omar; Rafti, Matias

Composite materials featuring a synergic combination of interesting properties such as stimuli responsiveness and tailored porosity are highly appealing due to their multiple possible applications. We hereby present an example which brings together such features by using poly(N-isopropyl-acrylamide)-derived thermo-responsive microgels and Zn-based Metal Organic Framework (MOF) ZIF-8, capable of…
ana.tutueanu@xenocs.com
12 March 2021
Surface modification of ZnO electron transport layers with glycine for efficient inverted non-fullerene polymer solar cells

Zhu, Xiaoqian; Guo, Bing; Fang, Jin; Zhai, Tianshu; Wang, Yanan; Li, Guangwei; Zhang, Jianqi; Wei, Zhixiang; Duhm, Steffen; Guo, Xia; Zhang, Maojie; Li, Yongfang

 (Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisRenewable energySurface structure and patternsTechniqueThin films

Surface modification of ZnO electron transport layers with glycine for efficient inverted non-fullerene polymer solar cells

Zhu, Xiaoqian; Guo, Bing; Fang, Jin; Zhai, Tianshu; Wang, Yanan; Li, Guangwei; Zhang, Jianqi; Wei, Zhixiang; Duhm, Steffen; Guo, Xia; Zhang, Maojie; Li, Yongfang

Interfacial engineering is crucial to improve the photovoltaic performance of polymer solar cells (PSCs). In this study, we demonstrate efficient inverted non-fullerene PSCs with ZnO modified by nontoxic glycine (Gly) as the electron transport layer (ETL). With the modification of Gly, work function of the ETL interlayer was decreased from…
ana.tutueanu@xenocs.com
12 March 2021
Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres

Guo, Jing; Li, Dongdong; Zhao, Han; Zou, Weizhi; Yang, Zhusheng; Qian, Zhenchao; Yang, Shijia; Yang, Meng; Zhao, Ning; Xu, Jian

 ApplicationCharacterizationCustomer publicationsFractal dimensionMaterialOtherPorous materialSAXSSizeTechnique

Cast-and-Use Super Black Coating Based on Polymer-Derived Hierarchical Porous Carbon Spheres

Guo, Jing; Li, Dongdong; Zhao, Han; Zou, Weizhi; Yang, Zhusheng; Qian, Zhenchao; Yang, Shijia; Yang, Meng; Zhao, Ning; Xu, Jian

Super black materials with extremely low reflectance and high absorption of incident light are crucial in various applications with strict optical requirements. However, the existing super black materials suffer from technical complexity in practical use whereas the underlying physics of their ultralow reflectance is still unclear. Herein, hierarchical porous carbon…
ana.tutueanu@xenocs.com
12 March 2021
Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles

Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsMaterialOtherPolymer researchSAXSTechniqueWAXS

Rheological modifiers based on supramolecular block copolymers: From weak associations to interconnected micelles

Goldansaz, Hadi; Jangizehi, Amir; Nikravan, Goolia; Verkinderen, Olivier; Goderis, Bart; Ghaffarian, Seyed Reza; van Ruymbeke, Evelyne; Ahmadi, Mostafa

The rheological spectra of poly(n-butyl acrylate) in the presence of a series of P(nBA-b-HEMA) rheology modifiers show a two-step relaxation process originating from the PnBA matrix and the self-assemblies. The HEMA segments are further grafted with strong, hydrogen bonding UPy groups, which both magnifies and slows down the relaxation of…
ana.tutueanu@xenocs.com
12 March 2021
Highly Ordered Semiconducting Polymer Arrays for Sensitive Photodetectors

Wei, Xiao; Gao, Hanfei; Feng, Jiangang; Pi, Yueyang; Zhang, Bo; Zhai, Yu; Wen, Wen; He, Mingqian; Matthews, James R.; Wang, Hongxiang; Li, Yang; Jiang, Shimei; Jiang, Lei; Wu, Yuchen

 (Natural) polymersApplicationCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisOtherSurface structure and patternsTechniqueThin films

Highly Ordered Semiconducting Polymer Arrays for Sensitive Photodetectors

Wei, Xiao; Gao, Hanfei; Feng, Jiangang; Pi, Yueyang; Zhang, Bo; Zhai, Yu; Wen, Wen; He, Mingqian; Matthews, James R.; Wang, Hongxiang; Li, Yang; Jiang, Shimei; Jiang, Lei; Wu, Yuchen

Semiconducting conjugated polymers possess attractive optoelectronic properties and low-cost solution processability and are inherently mechanically flexible. However, the device performance is susceptible to the fabrication methods because of the relatively weak intermolecular interaction of the polymers and their inherent conformational and energetic disorder. An efficient fabrication technique…
ana.tutueanu@xenocs.com
12 March 2021
Large Crystalline Domains and an Enhanced Exciton Diffusion Length Enable Efficient Organic Solar Cells

Zhang, Yiwei; Sajjad, Muhammad T.; Blaszczyk, Oskar; Parnell, Andrew J.; Ruseckas, Arvydas; Serrano, Luis A.; Cooke, Graeme; Samuel, Ifor D. W.

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsGIWAXSMaterialRenewable energySurface structure and patternsTechniqueThin films

Large Crystalline Domains and an Enhanced Exciton Diffusion Length Enable Efficient Organic Solar Cells

Zhang, Yiwei; Sajjad, Muhammad T.; Blaszczyk, Oskar; Parnell, Andrew J.; Ruseckas, Arvydas; Serrano, Luis A.; Cooke, Graeme; Samuel, Ifor D. W.

We studied crystallinity and exciton harvesting in bulk heterojunctions of the semiconducting polymer PffBT4T-2OD and electron acceptor PC71BM that are used to make highly efficient organic solar cells. Grazing incidence wide-angle X-ray scattering shows that the size of crystalline domains of PffBT4T-2OD increases to ?18 nm in photovoltaic blends upon…
ana.tutueanu@xenocs.com
12 March 2021
Overcoming the energy loss in asymmetrical non-fullerene acceptor-based polymer solar cells by halogenation of polymer donors

Fan, Qunping; Liu, Tao; Gao, Wei; Xiao, Yiqun; Wu, Jingnan; Su, Wenyan; Guo, Xia; Lu, Xinhui; Yang, Chuluo; Yan, He; Zhang, Maojie; Li, Yongfang

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsGIWAXSMaterialOrientation analysisRenewable energySurface structure and patternsTechniqueThin films

Overcoming the energy loss in asymmetrical non-fullerene acceptor-based polymer solar cells by halogenation of polymer donors

Fan, Qunping; Liu, Tao; Gao, Wei; Xiao, Yiqun; Wu, Jingnan; Su, Wenyan; Guo, Xia; Lu, Xinhui; Yang, Chuluo; Yan, He; Zhang, Maojie; Li, Yongfang

To achieve efficient polymer solar cells (PSCs), it is important to overcome the energy loss (Eloss) from the optical bandgap to the open-circuit voltage (Voc) of the device by properly matching donor/acceptor (D/A) photovoltaic materials. Here, we develop efficient PSCs based on the absorption complementary pairs of halogenated polymer donors…
ana.tutueanu@xenocs.com
12 March 2021
The Influence of Structure and Morphology on Ion Permeation Behaviour in Commercial Silicone Hydrogel Contact Lenses

Saez-Martinez, Virginia; Mann, Aisling; Lydon, Fiona; Molock, Frank; Layton, Siân A.; Toolan, Daniel T. W.; Howse, Jonathan R.; Topham, Paul D.; Tighe, Brian J.

 (Hydro)gelsApplicationCharacteristic dimensionCharacterizationCosmetics & consumer careCustomer publicationsMaterialSAXSTechnique

The Influence of Structure and Morphology on Ion Permeation Behaviour in Commercial Silicone Hydrogel Contact Lenses

Saez-Martinez, Virginia; Mann, Aisling; Lydon, Fiona; Molock, Frank; Layton, Siân A.; Toolan, Daniel T. W.; Howse, Jonathan R.; Topham, Paul D.; Tighe, Brian J.

The importance of the microstructure on the permeability of silicone hydrogels is widely appreciated but is poorly understood and minimally investigated. In contrast with most conventional hydrogels, the water content and water structuring within silicone hydrogels cannot be solely used to predict their permeability. To ensure comfort and eye health,…
ana.tutueanu@xenocs.com
12 March 2021
Order–Order Phase Transitions Induced by Supercritical Carbon Dioxide in Triblock Copolymer Thin Films

Abate, Anabella A.; Vu, Giang Thi; Piqueras, Cristian M.; del Barrio, María Cecilia; Gómez, Leopoldo R.; Catalini, Gabriel; Schmid, Friederike; Vega, Daniel A.

 (Natural) polymersApplicationCharacterizationCustomer publicationsMaterialParticle interactionsPhase analysisPolymer researchSAXSSelf-assembled materialSizeTechnique

Order–Order Phase Transitions Induced by Supercritical Carbon Dioxide in Triblock Copolymer Thin Films

Abate, Anabella A.; Vu, Giang Thi; Piqueras, Cristian M.; del Barrio, María Cecilia; Gómez, Leopoldo R.; Catalini, Gabriel; Schmid, Friederike; Vega, Daniel A.

We study the influence of supercritical carbon dioxide (scCO2) on the phase behavior of a cylinder-forming polystyrene-block-polybutadiene-b-polystyrene triblock copolymer thin film. Solvent annealing with scCO2 can produce patterns with long-range order but these structures become unstable for thin films with small thicknesses. These results are in good agreement with self-consistent…
ana.tutueanu@xenocs.com
12 March 2021
Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells

Yin, Hang; Zhang, Chujun; Hu, Hanlin; Karuthedath, Safakath; Gao, Yajun; Tang, Hua; Yan, Cenqi; Cui, Li; Fong, Patrick W. K.; Zhang, Zhuoqiong; Gao, Yaxin; Yang, Junliang; Xiao, Zuo; Ding, Liming; Laquai, Frédéric; So, Shu Kong; Li, Gang

 (Natural) polymersApplicationCharacteristic dimensionCharacterizationCustomer publicationsGIWAXSMaterialParticle interactionsRenewable energySurface structure and patternsTechniqueThin films

Highly Crystalline Near-Infrared Acceptor Enabling Simultaneous Efficiency and Photostability Boosting in High-Performance Ternary Organic Solar Cells

Yin, Hang; Zhang, Chujun; Hu, Hanlin; Karuthedath, Safakath; Gao, Yajun; Tang, Hua; Yan, Cenqi; Cui, Li; Fong, Patrick W. K.; Zhang, Zhuoqiong; Gao, Yaxin; Yang, Junliang; Xiao, Zuo; Ding, Liming; Laquai, Frédéric; So, Shu Kong; Li, Gang

The near-infrared (NIR) absorbing fused-ring electron acceptor, COi8DFIC, has demonstrated very good photovoltaic performance when combined with PTB7-Th as a donor in binary organic solar cells (OSCs). In this work, the NIR acceptor was added to state-of-the-art PBDBT-2F:IT4F-based solar cells as a third component, leading to (i) an efficiency increase…
ana.tutueanu@xenocs.com
12 March 2021
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