News

Chemical Doping of the Organic Semiconductor C8-BTBT-C8 Using an Aqueous Iodine Solution for Device Mobility Enhancement

Título : Chemical Doping of the Organic Semiconductor C8-BTBT-C8 Using an Aqueous Iodine Solution for Device Mobility Enhancement
Autores: Jinghai Li, Adara Babuji, Inés Temiño, Tommaso Salzillo, Francesco D'Amico, Raphael Pfattner, Carmen Ocal, Esther Barrena, Marta Mas-Torrent
Citation and DOI: Adv. Mater. Technol. 2022, 2101535
DOI: 10.1002/admt.202101535
PlumX: Chemical Doping of the Organic Semiconductor C8-BTBT-C8 Using an Aqueous Iodine Solution for Device Mobility Enhancement
The performance of organic field-effect transistors is still severely limited by factors such as contact resistance and charge trapping. Chemical doping is considered to be a promising key enabler for improving device performance, although there is a limited number of established doping protocols as well as a lack of understanding of the doping mechanisms. Here, a very simple doping methodology based on exposing an organic semiconductor thin film to an aqueous iodine solution is reported.

Molecular

  • Hits: 441

Chip-scale solar thermal electrical power generation

Título : Chip-scale solar thermal electrical power generation
Autores: Zhihang Wang, Zhenhua Wu, Zhiyu Hu, Jessica Orrego-Hernández, Erzhen Mu, Zhao-Yang, Zhang, MartynJevric, Yang Liu, Xuecheng Fu, Fengdan Wang, Tao Li, Kasper Moth-Poulsen
Citation and DOI: Cell Reports Physical Science, Volume 3, Issue 3, 16 March 2022, 100789
DOI: 10.1016/j.xcrp.2022.100789
PlumX: Chip-scale solar thermal electrical power generation
There is an urgent need for alternative compact technologies that can derive and store energy from the sun, especially the large amount of solar heat that is not effectively used for power generation. Here, we report a combination of solution- and neat-film-based molecular solar thermal (MOST) systems, where solar energy can be stored as chemical energy and released as heat, with microfabricated thermoelectric generators to produce electricity when solar radiation is not available.

Energy

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Converting solar energy to electricity on demand | Chalmers University of Technology | Daniel Spacek, neuroncollective.com

Converting solar energy to electricity on demand

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Eventually, this research – developed at Chalmers University of Technology, Sweden, by ICMAB and ICREA researcher Kasper Moth-Poulsen and co-workers – could lead to self-charging electronics using stored solar energy on demand.

Press Release, Top Science Results, Press Review

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Dynamical tuning of the thermal conductivity via magnetophononic effects

Título : Dynamical tuning of the thermal conductivity via magnetophononic effects
Autores: Claudio Cazorla and Riccardo Rurali
Citation and DOI:

Phys. Rev. B 105, 104401 – Published 1 March 2022
DOI: https://doi.org/10.1103/PhysRevB.105.104401

PlumX: Dynamical tuning of the thermal conductivity via magnetophononic effects
Strategies for tuning the thermal conductivity of crystals by means of external fields are rare. Here, we predict the existence of large magnetophononic effects in materials that undergo antiferromagnetic (AFM)  ferromagnetic (FM) phase transitions, which allow for the modulation of the lattice heat conductivity, κL, via the application of magnetic fields.

Oxides

  • Hits: 507
Juan D. Forero with his PhD Thesis | ICMAB

Congratulations Dr. Juan D. Forero Saboya, new ICMAB Graduate

Date: 2022-04-06

Doctor Juan D. Forero Saboya, from the Solid State Chemistry (SSC) Group at ICMAB-CSIC, defended his PhD thesis titled "Electrolytes and Interfaces in Calcium and Magnesium Rechargeable Batteries" on Tuesday, 5 April 2022 in a hybrid session. Congrats!

PhD Congrats

  • Hits: 594
Anna Palau, Alejandro Fernández and Narcís Mestres | ICMAB

Congratulations Doctor Alejandro Fernández, new ICMAB graduate!

Date: 2022-04-05

Doctor Alejandro Fernández Rodríguez, from the Superconducting Materials and Large Scale Nanostructures (SUMAN) Group at ICMAB-CSIC, defended his PhD thesis titled "Field-Induced Reversible Tuning of Oxygen Doping in High-Temperature Superconductors" on Monday, 4 April 2022 in a hybrid session. Congrats!

PhD Congrats

  • Hits: 571
Soft Service / U6 Nanbiosis Lab | ICMAB

ISO 9001:2015 Quality Certification for the Soft Scientific and Technical Service at ICMAB and Unit 6/Nanbiosis

The aim of the quality certification obtained is to ensure the quality of the service provided and to continue with its improvement and extension to future services.

The Scientific and Technical Service for the characterization of nano and biomaterials, the Soft Lab, run by the Nanomol Research Unit of the Institute of Materials Science of Barcelona (ICMAB, CSIC), and which is part of Unit 6 of the ICTS Nanbiosis, and CIBER-BBN, aims to offer characterization services of micro- and nanostructured soft molecular materials to the entire scientific community that requires them.

ICMAB Awards, Breaking News

  • Hits: 521

Nonadiabatic Born Effective Charges in Metals and the Drude Weight

Título : Nonadiabatic Born Effective Charges in Metals and the Drude Weight
Autores: Cyrus E. Dreyer, Sinisa Coh, and Massimiliano Stengel
Citation and DOI:

Phys. Rev. Lett. 128, 095901 – Published 28 February 2022
DOI: https://doi.org/10.1103/PhysRevLett.128.095901

PlumX: Nonadiabatic Born Effective Charges in Metals and the Drude Weight
In insulators, Born effective charges describe the electrical polarization induced by the displacement of individual atomic sublattices. Such a physical property is at first sight irrelevant for metals and doped semiconductors, where the macroscopic polarization is ill defined.

Oxides

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Multifunctional Switch Based on Spin-Labeled Gold Nanoparticles

Título : Multifunctional Switch Based on Spin-Labeled Gold Nanoparticles
Autores: Vega Lloveras*, Pilar Elías-Rodríguez, Luca Bursi, Ehsan Shirdel, Alejandro R. Goñi, Arrigo Calzolari, and José Vidal-Gancedo*
Citation and DOI:
Nano Lett. 2022, 22, 2, 768–774
Publication Date:January 4, 2022
DOI:https://doi.org/10.1021/acs.nanolett.1c04294
PlumX: Multifunctional Switch Based on Spin-Labeled Gold Nanoparticles
The fabrication of multifunctional switches is a fundamental step in the development of nanometer-scale molecular spintronic devices. The anchoring of active organic radicals on gold nanoparticles (AuNPs) surface is little studied and the realization of AuNPs-based switches remains extremely challenging.

Biomaterials

  • Hits: 478
Miquel Torras celebrating the PhD Thesis Defense with his NN group | ICMAB

Congratulations Dr. Miquel Torras, new ICMAB Graduate

Date: 2022-03-29

Doctor Miquel Torras, from the Nanoparticles & Nanocomposites (NN) Group at ICMAB-CSIC, defended his PhD thesis titled "Microwave-assisted synthetic routes for single and multicomponent functional nanoparticles" on Monday, 28 March 2022 in a hybrid session. Congrats!

PhD Congrats

  • Hits: 538

Untold Stories of Women in Electrochemistry: Vicenta Arnal, a Spanish Scientist in the 1930s

Título : Untold Stories of Women in Electrochemistry: Vicenta Arnal, a Spanish Scientist in the 1930s
Autores: M. Rosa Palacin, Gemma García and Agustí Nieto-Galan
Citation and DOI: J. Electrochem. Soc. 169 027520, 2022
DOI: 10.1149/1945-7111/ac554e
PlumX: Untold Stories of Women in Electrochemistry: Vicenta Arnal, a Spanish Scientist in the 1930s
This paper examines Vicenta Arnal Yarza's (19021960) life and scientific contributions to electrochemistry in the late 1920s and the 1930s. In Spain, this was a time of ambitious programs to modernize and internationalize scientific research, which included the training and career promotion of some women.

Energy

  • Hits: 484

Two-gap s±-wave superconductivity at an oxide interface

Título : Two-gap s±-wave superconductivity at an oxide interface
Autores: G. Singh, G. Venditti, G. Saiz, G. Herranz, F. Sánchez, A. Jouan, C. Feuillet-Palma, J. Lesueur, M. Grilli, S. Caprara, and N. Bergeal
Citation and DOI:

Phys. Rev. B 105, 064512 – Published 22 February 2022
DOI: https://doi.org/10.1103/PhysRevB.105.064512

PlumX: Two-gap s±-wave superconductivity at an oxide interface
After half a century of debate, superconductivity in doped SrTiO3 has come to the fore again with the discovery of interfacial superconductivity in the LaAlO3/SrTiO3 heterostructures. While these interfaces share the interesting properties of bulk SrTiO3 , quantum confinement generates a complex band structure involving bands with different orbital symmetries whose occupancy is tunable by electrostating doping.

Oxides

  • Hits: 445
Laser Processing Group lab | ICMAB

ICMAB debuts in the "Science by Women" program in its 7th edition

In total, 26 African women scientists have been selected to develop their own projects in different leading research centers in Spain.

ICMAB participates for the first time in the “Science by Women” program, one of the Fundación Mujeres por África longest-running programs. In its seventh edition, a total of 26 African women scientists have been selected to develop their own projects in different leading research centers in Spain, who host them in one their research groups for 6 months. 

Women in Science, New Projects, Breaking News

  • Hits: 556

Welcome Svenja Thömel at ICMAB!

Nombre y apellidos: Svenja Thömel
Hi! I am Svenja, a chemical engineering student from Dresden, Germany. I am at ICMAB for my practical semester until August working on fluorescent nanoparticles for bioimaging. Thanks for your welcoming atmosphere! See you :)

Germany

  • Hits: 967

Competition between Ta-Ta and Te-Te bonding leading to the commensurate charge density wave in Ta Te 4

Título : Competition between Ta-Ta and Te-Te bonding leading to the commensurate charge density wave in TaTe4
Autores: Bogdan Guster, Miguel Pruneda, Pablo Ordejón, and Enric Canadell
Citation and DOI:

Phys. Rev. B 105, 064107 – Published 22 February 2022
DOI: https://doi.org/10.1103/PhysRevB.105.064107

PlumX: Competition between Ta-Ta and Te-Te bonding leading to the commensurate charge density wave in TaTe4
The origin of the charge density wave in TaTe4 is discussed on the basis of a first-principles density functional theory analysis of the Fermi surface, electron-hole response function, phonon band structure of the average structure, and structural optimization of the modulated phase. Analysis of the band structure and Fermi surface of the average structure clearly proves that despite the presence of TaTe4 chains in the crystal structure, TaTe4 is in fact a 3D material as far as the electronic structure near the Fermi level is concerned.

Molecular

  • Hits: 389

Elucidation of the redox activity of Ca2MnO3.5 and CaV2O4 in calcium batteries using operando XRD: charge compensation mechanism and reversibility

Título : Elucidation of the redox activity of Ca2MnO3.5 and CaV2O4 in calcium batteries using operando XRD: charge compensation mechanism and reversibility
Autores: Ashley P. Black, Carlos Frontera, Arturo Torres, Miguel Recio-Poob, Patrick Rozier, Juan D. Forero-Saboya, François Fauth, Esteban Urones-Garrote, M. Elena Arroyo-de Dompablo, M. Rosa Palacín
Citation and DOI:

Energy Storage Materials, Volume 47, 2022, Pages 354-364, ISSN 2405-8297
DOI: https://doi.org/10.1016/j.ensm.2022.02.017

PlumX: Elucidation of the redox activity of Ca2MnO3.5 and CaV2O4 in calcium batteries using operando XRD: charge compensation mechanism and reversibility
Ca2MnO3.5 and CaV2O4 were found to be potentially interesting as positive electrode materials for calcium metal-based high-energy density batteries with DFT-predicted average voltages of 3.7 V and 2.5 V and energy barriers for Ca migration of 1.1 eV and 0.6 eV, respectively. Both compounds were prepared by solid state reaction under reducing atmospheres. Optimum conditions to achieve Ca2MnO3.5 comprised the reduction of Ca2MnO4 under NH3 gas at 420⁰C with a flow rate of 1200 ml/min while CaV2O4 was achieved by reduction of CaV2O6 at 700 ⁰C under H2 flow.

Energy

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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 S.L., new ICMAB-CSIC and BeAble Capital spin-off, offers a transformative technology to ensure the authenticity of pharmaceutical products

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Molecular Gate S.L. aims to become a key player in the anti-counterfeiting industry, particularly in the health sector. The cost-effective security technology developed by the company will ensure the authenticity of pharmaceutical products using smart optical printed elements on the products.

Press Release, TT News, Breaking News, timeline, Press Review

  • Hits: 1897
Colloidal inks for superconducting materials growth

A new technology to manufacture superconductors will enter the Lab to Market (L2M) XRE4S program

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The technology was presented by the Superconducting Materials and Large Scale Nanostructures (SUMAN) group, led by Teresa Puig. 

The technology "Colloidal inks for superconductors (HTS-INKS)" has been accepted to participate in the next Lab to Market (L2M) program organized by the Energy for Society Network (XRE4S) as announced on 16 March 2022.

The L2M program is a technology transfer and valorization program to boost the impact of energy technology transfer to the industry in Catalonia. In this third edition of the L2M program, the XRE4S experts committee has selected eight technologies from IREC, UPC, UdG and ICMAB-CSIC to take part in the program. 

TT News, Breaking News

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PhD Thesis Defense of Isabel Guerrero /ICMAB

Congratulations Dr. Isabel Guerrero, new ICMAB Graduate

Date: 2022-03-11

Doctor Isabel Guerrero Troyano, from the Inorganic Materials and Catalysis (LMI) Group at ICMAB-CSIC, defended her PhD thesis titled "Carborane compounds as efficient light-driven oxidation catalysts" on Friday 11 March 2022. Congrats!

PhD Congrats

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Welcome Martin Karlsmo at ICMAB!

Nombre y apellidos: Martin Karlsmo
Heey!
I am Martin, from Sweden, and I'm a materials science PhD student at Chalmers University of Technology. I am doing a 3 month research visit at ICMAB this spring with M. Rosa Palacin, and my research project is about low-cost and sustainable energy storage devices. So far I have been focusing on aqueous Na-ion batteries made of organic materials, which involves everything from physico-chemical characterization, different spectroscopy techniques, and a lot of electrochemistry.
I am a social and active person, so hopefully I will see you around!

Sweden

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Induced ligno-suberin vascular coating and tyramine-derived hydroxycinnamic acid amides restrict Ralstonia solanacearum colonization in resistant tomato

Título : Induced ligno-suberin vascular coating and tyramine-derived hydroxycinnamic acid amides restrict Ralstonia solanacearum colonization in resistant tomato
Autores: Anurag Kashyap, Álvaro Luis Jiménez-Jiménez, Weiqi Zhang, Montserrat Capellades, Sumithra Srinivasan, Anna Laromaine, Olga Serra, Mercè Figueras, Jorge Rencoret, Ana Gutiérrez, Marc Valls, Nuria S. Coll
Citation and DOI: New Phytol. 
DOI: https://doi.org/10.1111/nph.17982
PlumX: Induced ligno-suberin vascular coating and tyramine-derived hydroxycinnamic acid amides restrict Ralstonia solanacearum colonization in resistant tomato
Tomato varieties resistant to the bacterial wilt pathogen Ralstonia solanacearum have the ability to restrict bacterial movement in the plant. Inducible vascular cell wall reinforcements seem to play a key role in confining R. solanacearum into the xylem vasculature of resistant tomato. However, the type of compounds involved in such vascular physico-chemical barriers remain understudied, while being a key component of resistance.
Here we use a combination of histological and live-imaging techniques, together with spectroscopy and gene expression analysis to understand the nature of R. solanacearum-induced formation of vascular coatings in resistant tomato.

Biomaterials

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