Sustainable energy conversion & storage systems

Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si1–xGex Superlattices

Written by icmab on 08 January 2021.

Título : Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si_1–xGe_x Superlattices

Autores: P. Ferrando-Villalba, Shunda Chen, A. F. Lopeandía, F. X. Alvarez, M. I. Alonso, M. Garriga, J. Santiso, G. Garcia, A. R. Goñi, D. Donadio*, and J. Rodríguez-Viejo*

Citation:

J. Phys. Chem. C 2020, 124, 36, 19864–19872

Publication Date:August 11, 2020

https://doi.org/10.1021/acs.jpcc.0c06410

PlumX: Beating the Thermal Conductivity Alloy Limit Using Long-Period Compositionally Graded Si1–xGex Superlattices

Superlattices with scattering mechanisms at multiple length scales efficiently scatter phonons at all relevant wavelengths and provide a convenient route to reduce thermal transport. Here, we show, both experimentally and by atomistic simulations, that SiGe superlattices with well-established compositional gradients and a sufficient number of interfaces exhibit extremely low thermal conductivity.

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Homoconjugation in Light-Emitting Poly(phenylene methylene)s: Origin and Pressure-Enhanced Photoluminescence

Written by icmab on 29 December 2020.

Autores: Aleksandr Perevedentsev*, Adrián Francisco-López, Xingyuan Shi, Andreas Braendle, Walter R. Caseri, Alejandro R. Goñi, and Mariano Campoy-Quiles

Citation:

Macromolecules 2020, 53, 17, 7519–7527
Publication Date: August 26, 2020

DOI: https://doi.org/10.1021/acs.macromol.0c01153

PlumX: Homoconjugation in Light-Emitting Poly(phenylene methylene)s: Origin and Pressure-Enhanced Photoluminescence

The surprising optical properties of the non-π-conjugated polymer poly(phenylene methylene) (PPM) and its derivatives—that is, absorption in the 350–450 nm and photoluminescence (PL) in the 400–600 nm spectral regions—have been attributed to chromophores formed by homoconjugation along the polymer chain. The enabling role of homoconjugation, however, was hitherto ascertained primarily by excluding alternative origins of luminescence.

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Hydroxypropyl Cellulose Adhesives for Transfer Printing of Carbon Nanotubes and Metallic Nanostructures

Written by icmab on 30 November 2020.

Autores: Camilla Dore, Bernhard Dörling, Juan Luis Garcia‐Pomar, Mariano Campoy‐Quiles, Agustín Mihi

Citation: Small 2020, 2004795

DOI:https://doi.org/10.1002/smll.202004795

PlumX: Hydroxypropyl Cellulose Adhesives for Transfer Printing of Carbon Nanotubes and Metallic Nanostructures

Transfer printing is one of the key nanofabrication techniques for the large‐scale manufacturing of complex device architectures. It provides a cost‐effective and high‐throughput route for the integration of independently processed materials into spatially tailored architectures.

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Reduction of the Lattice Thermal Conductivity of Polymer Semiconductors by Molecular Doping

Written by icmab on 16 October 2020.

Osnat Zapata-Arteaga, Aleksandr Perevedentsev, Sara Marina, Jaime Martin, Juan Sebastián Reparaz*, and Mariano Campoy-Quiles*.
ACS Energy Lett. 2020, 5, 9, 2972–2978.

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Understanding the nature of the passivation layer enabling reversible calcium plating

Written by icmab on 13 October 2020.

Juan Forero-Saboya, Carine Davoisne, Rémi Dedryvère, Ibraheem Yousef, Pieremanuele Canepa * and Alexandre Ponrouch *.
Energy Environ. Sci., 2020, Advance Article.

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High‐Throughput Nanofabrication of Metasurfaces with Polarization‐Dependent Response

Written by icmab on 15 September 2020.

Metal nanostructures offer exciting ways to manage light at the nanoscale exploited in fields such as imaging, sensing, energy conversion, and information processing. The optical response of the metallic architectures can be engineered to exhibit photonic properties that span from plasmon resonances to more complex phenomena such as negative refractive index, optical chirality, artificial magnetism, and more.

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Microfluidic‐Assisted Blade Coating of Compositional Libraries for Combinatorial Applications: The Case of Organic Photovoltaics

Written by icmab on 08 September 2020.

Microfluidic technologies are highly adept at generating controllable compositional gradients in fluids, a feature that has accelerated the understanding of the importance of chemical gradients in biological processes.

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Rapid and high-resolution patterning of microstructure and composition in organic semiconductors using ‘molecular gates’

Written by icmab on 28 August 2020.

Photolithography has been a major enabling tool for miniaturisation of silicon devices that underpinned the electronics revolution. Rapid, high-resolution patterning of key material characteristics would, similarly, accelerate the advent of molecular electronics and photonics.

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Electrodeposited Negative Index Metamaterials with Visible and Near Infrared Response

Written by icmab on 07 August 2020.

Negative index metamaterials have revolutionized the field of photonics because of their unconventional electromagnetic properties absent in naturally occurring materials. It remains a challenge however, to achieve strong negative refractive index at optical frequencies over large areas in a device compatible fashion.

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Templated‐assembly of CsPbBr3 perovskite nanocrystals into 2D photonic supercrystals with amplified spontaneous emission

Written by icmab on 31 July 2020.

Perovskite nanocrystals (NCs) have revolutionized optoelectronic devices because of their versatile optical properties. However, controlling and extending these functionalities often requires a light management strategy involving additional processing steps.

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Towards photovoltaic windows: scalable fabrication of semitransparent modules based on non-fullerene acceptors via laser-patterning

Written by icmab on 14 July 2020.

Semitransparent organic photovoltaics (OPV) possess unique properties that make them highly appealing for their integration into semitransparent architectonic elements such as windows or glazings. In order to provide sufficient transparency, non-opaque electrodes and thin photoactive layers are typically used, thus limiting the light-harvesting capacity.

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Experimental demonstration of the suppression of optical phonon splitting in 2D materials by Raman spectroscopy

Written by icmab on 10 July 2020.

Raman spectroscopy is one of the most extended experimental techniques to investigate thin-layered 2D materials. For a complete understanding and modeling of the Raman spectrum of a novel 2D material, it is often necessary to combine the experimental investigation to density functional theory calculations.

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Probing Lattice Dynamics and Electronic Resonances in Hexagonal Ge and SixGe1–x Alloys in Nanowires by Raman Spectroscopy

Written by icmab on 26 June 2020.

Recent advances in nanowire synthesis have enabled the realization of crystal phases that in bulk are attainable only under extreme conditions, i.e., high temperature and/or high pressure.

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A Highly Water-Stable meta-Carborane-Based Copper Metal–Organic Framework for Efficient High-Temperature Butanol Separation

Written by Jags on 02 June 2020.

Biofuels are considered sustainable and renewable alternatives to conventional fossil fuels. Biobutanol has recently emerged as an attractive option compared to bioethanol and biodiesel, but a significant challenge in its production lies in the separation stage.

Hits: 610

Photoflexoelectric effect in halide perovskites

Written by Jags on 18 May 2020.

Harvesting environmental energy to generate electricity is a key scientific and technological endeavour of our time. Photovoltaic conversion and electromechanical transduction are two common energy-harvesting mechanisms based on, respectively, semiconducting junctions and piezoelectric insulators.

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Electrochemical Methods for Lithium Recovery: A Comprehensive and Critical Review

Written by icmab on 15 May 2020.

Due to the ubiquitous presence of lithium‐ion batteries in portable applications, and their implementation in the transportation and large‐scale energy sectors, the future cost and availability of lithium is currently under debate.

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Large area metasurfaces made with spherical silicon resonators

Written on 07 April 2020.

Pau Molet, Luz Karimé Gil-Herrera, Juan Luis Garcia-Pomar, Niccolò Caselli, Álvaro Blanco, Cefe López, Agustín Mihi. Nanophotonics. Received January 16, 2020; revised February 20, 2020; accepted February 22, 2020.

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Nitro-graphene oxide in iridium oxide hybrids: electrochemical modulation of N-graphene redox states and charge capacities

Written on 27 March 2020.

E. Pérez, N. M. Carretero, S. Sandoval, A. Fuertes, G. Tobias and N. Casañ-Pastor*. Mater. Chem. Front., 2020, Advance Article.

Hits: 525

Phase Diagram of Methylammonium/Formamidinium Lead Iodide Perovskite Solid Solutions from Temperature-Dependent Photoluminescence and Raman Spectroscopies

Written on 10 March 2020.

Adrián Francisco-López, Bethan Charles, M. Isabel Alonso, Miquel Garriga, Mariano Campoy-Quiles, Mark T. Weller, Alejandro R. Goñi*. J. Phys. Chem. C 2020, 124, 6, 3448-3458

Hits: 618

Efficient Exploration of the Composition Space in Ternary Organic Solar Cells by Combining High‐Throughput Material Libraries and Hyperspectral Imaging

Written by icmab on 14 February 2020.

Albert Harillo‐Baños, Xabier Rodríguez‐Martínez, Mariano Campoy‐Quiles. Adv. Energy Mater.2020, 10, 1902417.

Hits: 421

Achievements, Challenges, and Prospects of Calcium Batteries

Written by icmab on 21 January 2020.

M. Elena Arroyo-de Dompablo*, Alexandre Ponrouch, Patrik Johansson, M. Rosa Palacín*. Chemical Reviews Article ASAP.

Hits: 374

Narrow linewidth quantum emitters in electron-beam shaped polymer

Written by icmab on 14 January 2020.

Carlotta Ciancico, Kevin Schädler, Sofia Pazzagli, Maja Colautti, Pietro Lombardi, Johann Osmond, Camilla Dore, Agustin Mihi, Anna Ovvyan, Wolfram HP Pernice, Enrico Berretti, Alessandro Lavacchi, Costanza Toninelli, Frank H.L. Koppens, Antoine Reserbat-Plantey. ACS Photonics

Hits: 559

Methods and Protocols for Reliable Electrochemical Testing in Post-Li Batteries (Na, K, Mg, and Ca)

Written by icmab on 10 January 2020.

Romain Dugas, Juan D. Forero-Saboya, Alexandre Ponrouch*. Chem. Mater. 2019, 31, 21, 8613-8628. Publication Date:October 15, 2019

Hits: 466

Electrochemical Reduction of Undoped and Cobalt-Doped BiFeO3 Induced by Water Exposure: Quantitative Determination of Reduction Potentials and Defect Energy Levels Using Photoelectron Spectroscopy

Written by icmab on 31 December 2019.

Nicole S. Bein, Pamela Machado, Mariona Coll, Feng Chen, Maja Makarovic, Tadej Rojac, Andreas Klein*. J. Phys. Chem. Lett. 2019, 10, XXX, 7071-7076.

Hits: 601

Solar Harvesting: a Unique Opportunity for Organic Thermoelectrics?

Written by icmab on 09 December 2019.

José P. Jurado, Bernhard Dörling, Osnat Zapata‐Arteaga, Anna Roig, Agustín Mihi, Mariano Campoy‐Quiles. Adv. Energy Mater.2019, 1902385.

Hits: 763

Spontaneous cationic ordering in chemical-solution-grown La2CoMnO6 double perovskite thin films

Written by icmab on 11 October 2019.

Hailin Wang, Jaume Gazquez, Carlos Frontera, Matthew F. Chisholm, Alberto Pomar, Benjamin Martinez & Narcis Mestres. NPG Asia Materials volume 11, Article number: 44 (2019).

Hits: 756

Energy Transfer and Interference by Collective Electromagnetic Coupling

Written by icmab on 17 September 2019.

Mayte Gómez-Castaño, Mayte Gómez-Castaño, Andrés Redondo-Cubero, Lionel Buisson, Jose Luis Pau, Agustin Mihi, Serge Ravaine, Renaud A. L. Vallée*, Abraham Nitzan, Maxim Sukharev*. Nano Lett. 2019, 19, 8, 5790-5795

Hits: 866

Ferroelectricity-free lead halide perovskites

Written by icmab on 23 August 2019.

Andrés Gómez,* Qiong Wang,* Alejandro R. Goñi, Mariano Campoy-Quiles and Antonio Abate*. Energy Environ. Sci., 2019, Advance Article.

Hits: 844

On the impact of the stress situation on the optical properties of WSe2 monolayers under high pressure

Written by icmab on 01 August 2019.

Francisco-López, A., Han, B., Lagarde, D., Marie, X., Urbaszek, B., Robert, C., & Goñi, A. (2019). Papers in Physics, 11, 110005.

Hits: 866

Nanostructured Back Reflectors for Efficient Colloidal Quantum‐Dot Infrared Optoelectronics

Written by icmab on 30 July 2019.

Se‐Woong Baek, Pau Molet, Min‐Jae Choi, Margherita Biondi, Olivier Ouellette, James Fan, Sjoerd Hoogland, F. Pelayo García de Arquer, Agustín Mihi, Edward H. Sargent. Adv. Mater. 2019, 1901745.

Hits: 911

Assembly-Induced Bright-Light Emission from Solution-Processed Platinum(II) Inorganic Polymers

Written by icmab on 16 July 2019.

Aleksandr Perevedentsev*, Fabio L. Bargardi*, Antoni Sánchez-Ferrer, Nathan J. Cheetham, Ahmad Sousaraei, Stephan Busato, Johannes Gierschner, Begoña Milián-MedinaBegoña Milián-Medina, Raffaele Mezzenga, Reinhold Wannemacher, Juan Cabanillas-Gonzalez, Mariano Campoy-Quiles and Walter R. Caseri. ACS Omega20194610192-10204. Publication Date:June 12, 2019

Hits: 884

Role of Manganese in Lithium- and Manganese-Rich Layered Oxides Cathodes

Written by icmab on 05 July 2019.

Laura Simonelli*, Andrea Sorrentino, Carlo Marini, Nitya Ramanan, Dominique Heinis, Wojciech Olszewski, Angelo Mullaliu, Agnese Birrozzi, Nina Laszczynski, Marco Giorgetti, Stefano Passerini, Dino Tonti
J. Phys. Chem. Lett. 201910XXX3359-3368.

Hits: 1050

Electric field gradients and bipolar electrochemistry effects on neural growth: A finite element study on immersed electroactive conducting electrode materials

Written by icmab on 21 June 2019.

Llibertat Abad, Ann M. Rajnicek, N. Casañ-Pastor. Electrochimica Acta, Volume 317, 10 September 2019, Pages 102-111.

Hits: 925

On the Study of Ca and Mg Deintercalation from Ternary Tantalum Nitrides

Written by icmab on 18 June 2019.

Roberta Verrelli, Ashley Philip Black, Carlos Frontera, Judith Oró-Solé, Maria Elena Arroyo-de Dompablo, Amparo Fuertes*, M. Rosa Palacín*. ACS Omega 2019458943-8952.

Hits: 921

Equal Footing of Thermal Expansion and Electron–Phonon Interaction in the Temperature Dependence of Lead Halide Perovskite Band Gaps

Written by icmab on 07 June 2019.

Adrián Francisco-López, Bethan Charles, Oliver J. Weber, M. Isabel Alonso, Miquel Garriga, Mariano Campoy-Quiles, Mark T. Weller, Alejandro R. Goñi*. J. Phys. Chem. Lett.

Hits: 989

Solvent-Assisted Self-Assembly of Gold Nanorods into Hierarchically Organized Plasmonic Mesostructures

Written by icmab on 07 May 2019.

Christoph Hanske, Eric H. Hill, David Vila-Liarte, Guillermo González-Rubio, Cristiano Matricardi, Agustin Mihi, and Luis M. Liz-Marzán. ACS Appl. Mater. Interfaces

Hits: 1139

Geometric frustration in ordered lattices of plasmonic nanoelements

Written by icmab on 30 April 2019.

Ana Conde-Rubio, Arantxa Fraile Rodríguez, André Espinha, Agustín Mihi, Francesc Pérez-Murano, Xavier Batlle & Amílcar Labarta. Scientific Reports, volume 9, Article number: 3529 (2019).

Hits: 1068

Band Gap Tuning of Solution-Processed Ferroelectric Perovskite BiFe1–xCoxO3 Thin Films

Written by icmab on 19 April 2019.

Pamela Machado, Mateusz Scigaj, Jaume Gazquez, Estel Rueda, Antonio Sánchez-Díaz, Ignasi Fina, Martí Gibert-Roca, Teresa Puig, Xavier Obradors, Mariano Campoy-Quiles, and Mariona Coll*. Chem. Mater., 2019, 31 (3), pp 947–954

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Thermoelectrics: From history, a window to the future

Written by icmab on 29 March 2019.

Davide Beretta, Neophytos Neophytou, James M.Hodges, Mercouri G. Kanatzidis, DarioNarducci, Marisol Martin- Gonzalez, Matt Beekman, Benjamin Balke, Giacomo Cerretti, Wolfgang Tremel, Alexandra Zevalkink, Anna I. Hofmann, Christian Müller, Bernhard Dörling, Mariano Campoy-Quiles, Mario Caironi. Materials Science and Engineering: R: Reports.

Hits: 1467

Farming thermoelectric paper

Written by icmab on 22 March 2019.

Deyaa Abol-Fotouh, Bernhard Dörling, Osnat Zapata-Arteaga, Xabier Rodríguez-Martínez, Andrés Gómez, J. Sebastian Reparaz, Anna Laromaine,* Anna Roig* and Mariano Campoy-Quiles*. Energy Environ. Sci., 2019, Advance Article.

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