News

High critical current solution derived YBa2Cu3O7 films grown on sapphire

Título : High critical current solution derived YBa2Cu3O7 films grown on sapphire
Autores: C Pop, P Barusco, R Vlad, A Queralto, K Gupta, B Almog, A Saraf, G Deutscher, X Granados, T Puig and X Obradors
Citation and DOI:

Supercond. Sci. Technol. 35 054007, 2022
DOI: https://doi.org/10.1088/1361-6668/ac5be9

PlumX: High critical current solution derived YBa2Cu3O7 films grown on sapphire
Superconducting fault current limiters (SFCLs) are very attractive devices which require to increase its robustness against the destructive hot spots. The use of sapphire substrates to grow YBa2Cu3O7 (YBCO) films is a very attractive approach due to its high thermal conductivity. This article reports the growth of microcrack-free, epitaxial YBCO layers by chemical solution deposition (CSD) on Ce1−xZrxO2 (CZO)/yttrium-stabilized zirconia/r-cut barely polished sapphire (BPS) substrates which can be produced in long lengths at low cost.

Superconductors

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Design Rules for Polymer Blends with High Thermoelectric Performance

Título : Design Rules for Polymer Blends with High Thermoelectric Performance
Autores: Osnat Zapata-Arteaga, Sara Marina, Guangzheng Zuo, Kai Xu, Bernhard Dörling, Luis Alberto Pérez, Juan Sebastián Reparaz, Jaime Martín, Martijn Kemerink, Mariano Campoy-Quiles
Citation and DOI: Adv. Energy Mater. 2022, 2104076. 
DOI: https://doi.org/10.1002/aenm.202104076
PlumX: Design Rules for Polymer Blends with High Thermoelectric Performance
A combinatorial study of the effect of in-mixing of various guests on the thermoelectric properties of the host workhorse polymer poly[2,5-bis(3-tetradecylthiophen-2-yl)thieno[3,2-b]thiophene] (PBTTT) is presented. Specifically, the composition and thickness for doped films of PBTTT blended with different polymers are varied. Some blends at guest weight fractions around 10–15% exhibit up to a fivefold increase in power factor compared to the reference material, leading to zT values around 0.1.

Energy

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Welcome Henri Tertilt at ICMAB!

Nombre y apellidos: Henri Tertilt
Hello everyone, my name is Henri and I study Chemistry at WWU Münster (Germany). I’m here at ICMAB for a 3-month internship during my Masters Degree. I’m looking forward for any chat or quick coffee break with you during my stay and hope to see you around.

Germany

  • Hits: 502
Diferent unidentified samples and a graphic of the structure of a hydrogel.

PhD position at ICMAB: Lymph Node-inspired 3D Hydrogels as Cancer Models

Deadline: 2022-09-01

The Max Planck Partner Group “Dynamic Biomimetics for Cancer Immunotherapy” (Nanomol-Bio Group; ICMAB-CSIC) is looking for a PhD fellow to develop artificial extracellular matrices (ECM) based on 3D hydrogels to create patient-derived organoids as hematological cancer models.

PhD Fellows

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Enhanced electroresistance endurance of capped Hf0.5Zr0.5O2 ultrathin epitaxial tunnel barriers

Título : Enhanced electroresistance endurance of capped Hf0.5Zr0.5O2 ultrathin epitaxial tunnel barriers
Autores: Xiao Long, Huan Tan, Saúl Estandía, Jaume Gazquez, Florencio Sánchez, Ignasi Fina and Josep Fontcuberta
Citation and DOI:

APL Materials 10, 031114 (2022)
DOI: https://doi.org/10.1063/5.0076865

PlumX: Enhanced electroresistance endurance of capped Hf0.5Zr0.5O2 ultrathin epitaxial tunnel barriers
Electroresistance in ultrathin Hf0.5Zr0.5O2 (HZO) films is pivotal toward the implementation of hafnia-based ferroelectrics in electronics. Here, we show that the electroresistance yield and endurance of large capacitors (∼314 µm2) of epitaxial HZO films only 2.2 nm thick grown on SrTiO3 or GdScO3 can be improved using 1 nm SrTiO3 capping layers. It is argued that the main role of the capping layer is to minimize charge transport along grain boundaries, and, thus, a similar strategy can be explored in polycrystalline films

Oxides

  • Hits: 538
Picture of several people on a meeting.

Kickoff meeting of the European DYNAMO project in Castelló

Press Links:

From ICMAB, researcher Agustín Mihi participates in this new EIC Pathfinder Horizon Europe project.

The Horizon Europe DYNAMO project, coordinated by the Optics Research Group of the Universitat Jaume I of Castelló (GROC), has started its activity with the first meeting of the international consortium, formed by fourteen partners and associated entities, including ICMAB. 

Project Meetings, New Projects, Breaking News, timeline, Press Review

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o-Carborane-based fluorophores as efficient luminescent systems both as solids and as water-dispersible nanoparticles

Título : o-Carborane-based fluorophores as efficient luminescent systems both as solids and as water-dispersible nanoparticles
Autores: Sohini Sinha, Zsolt Kelemen, Evelyn Hümpfner, Imma Ratera, Jean-Pierre Malval, José Piers Jurado, Clara Viñas, Francesc Teixidor and Rosario Núñez *
Citation and DOI:

Chem. Commun., 2022,58, 4016-4019
DOI: https://doi.org/10.1039/D1CC07211K

PlumX: o-Carborane-based fluorophores as efficient luminescent systems both as solids and as water-dispersible nanoparticles
A set of o-carborane-appended π-conjugated fluorophores and their light-emitting properties in the solid state are reported. The aggregation-induced emission enhancement (AIEE) exhibited for one of the fluorenyl derivatives paved the way to successfully preparing o-carborane-containing organic nanoparticles (NPs) homogeneously dispersed in aqueous media that maintain their luminescence properties. Notably, NPs processed as thin films also show high fluorescence efficiency, suggesting potential optical and optoelectronic applications.

Biomaterials

  • Hits: 317
Laboratory at ICMAB | ICMAB

ICMAB at NFFA Europe: first European platform with free open access to unique nanoscience research infrastructures

Press Links:

ICMAB, together with IMB-CNM and ICMM, are the three CSIC centres members of this European consortium. The platform has just published a Memorandum of Understanding to explore the future sustainability of the initiative. 

Project Results, Breaking News, timeline, Press Review

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Welcome Diego Riva at ICMAB!

Nombre y apellidos: Diego Riva
Hello everyone! My name is Diego and I come from Italy. I have just graduated in Physical Sciences at the University of Pavia and I am at ICMAB for a 3-month internship with the NANOPTO group. I am a sociable person and I really enjoy playing volleyball. I hope to see all of you around!

Italy

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Welcome Priya Pandey at ICMAB!

Nombre y apellidos: Priya Pandey
Hello! I'm a Ph.D. student from University of Bologna and PolyCrystalLine SPA, Italy. I'm working in an ETN network H2020-MSCA-UHMob, with the objective to study the bulk polymorphism in best performing organic molecular semiconductors. I'm going to spend a few months in the Nanomol group at ICMAB working on solution shearing technique to explore the occurrence of non-equilibrium polymorphs and fabricating OFETs under the supervision of Dr. Marta Mas-Torrent. Looking forward to meeting you soon!

Italy

  • Hits: 684

Organic Field-Effect Transistors Based on Ternary Blends Including a Fluorinated Polymer for Achieving Enhanced Device Stability

Título : Organic Field-Effect Transistors Based on Ternary Blends Including a Fluorinated Polymer for Achieving Enhanced Device Stability
Autores: Adrián Tamayo, Tommaso Salzillo, Marta Mas-Torrent
Citation and DOI: Adv. Mater. Interfaces 20229, 2101679. https://doi.org/10.1002/admi.202101679
PlumX: Organic Field-Effect Transistors Based on Ternary Blends Including a Fluorinated Polymer for Achieving Enhanced Device Stability
The stability of organic semiconductors (OSCs) is strongly hampered by the presence of water molecules. One approach that has been proved to lead to organic field-effect transistors with an enhanced performance is the use of blends of OSCs with insulating binding polymers. In this work, the fabrication of OSC thin films based on polymeric ternary blends including a hydrophobic fluorinated polymer is reported as a novel route to engineer long-term reliable organic field-effect transistors (OFET) devices.

Molecular

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Mariano Campoy-Quiles and Aleksandr Perevedentsev, founders of Molecular Gate S.L. CSIC spin-off, showing the anti-counterfeiting technology | ICMAB-CSIC

Molecular Gate in RNE "A hombros de gigantes"

Mariano Campoy-Quiles and Anna May Masnou explain the new ICMAB-CSIC spin off to Manuel Seara.

On Sunday, 24 April 2022, the spin off Molecular Gate S.L. was featured in the radio programme "A hombros de gigantes", by Manuel Seara.

Anna May Masnou, Communication Officer at ICMAB, and Mariano Campoy-Quiles, researcher and co-founder of the spin off (together with Alexander Perevedentsev, and with BeAble Capital), explained the basics of this new spin off, which intends to provide a range of unique and cost-effective security solutions for the pharmaceutical market.

The patented technology will help to verify the authenticity of products and ensure their proper handling during storage and transportation.

Radio, Breaking News, timeline

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Pushing the Limits on the Intestinal Crossing of Metal–Organic Frameworks: An Ex Vivo and In Vivo Detailed Study

Título : Pushing the Limits on the Intestinal Crossing of Metal–Organic Frameworks: An Ex Vivo and In Vivo Detailed Study
Autores: Sara Rojas, Tania Hidalgo, Zhongrui Luo, David Ávila, Anna Laromaine*, and Patricia Horcajada*
Citation and DOI:
ACS Nano 2022, XXXX, XXX, XXX-XXX
Publication Date:March 17, 2022
DOI: https://doi.org/10.1021/acsnano.1c10942
PlumX: Pushing the Limits on the Intestinal Crossing of Metal–Organic Frameworks: An Ex Vivo and In Vivo Detailed Study
Biocompatible nanoscaled metal–organic frameworks (nanoMOFs) have been widely studied as drug delivery systems (DDSs), through different administration routes, with rare examples in the convenient and commonly used oral administration. So far, the main objective of nanoMOFs as oral DDSs was to increase the bioavailability of the cargo, without considering the MOF intestinal crossing with potential advantages (e.g., increasing drug availability, direct transport to systemic circulation).

Biomaterials

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Welcome Jaume Bruguera Farrés at ICMAB!

Nombre y apellidos: Jaume Bruguera Farrés
Hello! My name is Jaume. I am a student of the degree in Nanoscience and Nanotechnology at UAB and I am currently doing my final degree project on the characterization of ferroelectric materials at ICMAB, in the Magnetic Materials and Functional Oxides group. I am willing to learn a lot and take advantage of this experience. I really enjoy nature, cooking and good company. Hope to see you around!

Spain

  • Hits: 670

Impact of non-ferroelectric phases on switching dynamics in epitaxial ferroelectric Hf0.5Zr0.5O2 films

Título : Impact of non-ferroelectric phases on switching dynamics in epitaxial ferroelectric Hf0.5Zr0.5O2 films
Autores: Tingfeng Song, Florencio Sánchez, and Ignasi Fina
Citation and DOI: APL Materials 10, 031108 (2022); https://doi.org/10.1063/5.0083661
PlumX: Impact of non-ferroelectric phases on switching dynamics in epitaxial ferroelectric Hf0.5Zr0.5O2 films
Determining the switching speed and mechanisms in ferroelectric HfO2 is essential for applications. Switching dynamics in orthorhombic epitaxial ferroelectric Hf0.5Zr0.5O2 films with either significant or negligible presence of monoclinic paraelectric phase is characterized.

Oxides

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Efficient infrared sunlight absorbers based on gold-covered, inverted silicon pyramid arrays

Título : Efficient infrared sunlight absorbers based on gold-covered, inverted silicon pyramid arrays
Autores: Jinhui Hu, Luis A. Pérez, *  Juan Luis Garcia-Pomar, Agustín Mihi, Miquel Garriga, M. Isabel Alonso and Alejandro R. Goñi*
Citation and DOI: Mater. Adv., 2022,3, 2364-2372 
DOI:10.1039/D1MA01237A
PlumX: Efficient infrared sunlight absorbers based on gold-covered, inverted silicon pyramid arrays
The transparency of silicon in the infrared region enables the design of nano/microstructures for implementation in devices to harvest the infrared (IR) part of the solar spectrum. Herein we report a strategy that uses arrays of inverted silicon pyramids covered with a thin gold film, which exhibit substantial light absorption in the infrared spectral range (below the gap of Si). The absorption stems from the resonant excitation at infrared wavelengths of surface-plasmon polaritons at the metal/dielectric interface mainly by tuning size and separation of the inverted pyramids.

Energy

  • Hits: 333

Bendable Polycrystalline and Magnetic CoFe2O4 Membranes by Chemical Methods

Título : Bendable Polycrystalline and Magnetic CoFe2O4 Membranes by Chemical Methods
Autores: Pol Salles, Roger Guzmán, David Zanders, Alberto Quintana, Ignasi Fina, Florencio Sánchez, Wu Zhou, Anjana Devi, and Mariona Coll*
Citation and DOI:
ACS Appl. Mater. Interfaces 2022, 14, 10, 12845–12854
Publication Date:March 1, 2022
DOI: 10.1021/acsami.1c24450
PlumX: Bendable Polycrystalline and Magnetic CoFe2O4 Membranes by Chemical Methods
The preparation and manipulation of crystalline yet bendable functional complex oxide membranes has been a long-standing issue for a myriad of applications, in particular, for flexible electronics. Here, we investigate the viability to prepare magnetic and crystalline CoFe2O4 (CFO) membranes by means of the Sr3Al2O6 (SAO) sacrificial layer approach using chemical deposition techniques.

Energy

  • Hits: 396

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