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Coatings
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Materials, Coatings and Devices for Energy Storage/Generation and for Decontamination...
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Materials, Coatings and Devices for Energy Storage/Generation and for Decontamination of Water

A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Engineering for Energy Harvesting, Conversion, and Storage".

Deadline for manuscript submissions: closed (1 March 2024) | Viewed by 3168

Special Issue Editor

Dr. Jorge Oliva

E-Mail Website
Guest Editor
Centro de Física Aplicada y Tecnología Avanzada, CFATA, Querétaro, Mexico
Interests: batteries; supercapacitors; supercapatteries; hydrogen generation; solar cells; OLEDs; photocatalytic materials; thermoelectric materials; luminescent materials; materials for the renewable production of energy; materials or devices for the storage and production of energy; coatings for the energy storage/production; functionalization and surface modification of nanoparticles for applications related with energy and environment; theoretical calculations for materials related with the energy storage and production; renewable/sustainable energy sources

Special Issue Information

Dear Colleagues,

Air contamination and global warming due to the high consumption of fossil fuels are serious issues. In addition, the substitution of current batteries (AA, AAA, or lithium batteries) for eco-friendly energy storage devices is an necessary aim, since the former contain compounds that are corrosive/toxic to the environment. Furthermore, water sources are currently contaminated by microplastics, which come from daily-life products such as single-use packets, food packets, supermarket bags, etc. Additionally, water sources are contaminated by dyes, herbicides and pharmaceuticals produced by the chemical industries. Thus, it is necessary to develop new materials/processes/coatings to reduce the contamination. For this reason, I invite all colleagues from all around the world to submit your strategies/concepts about innovative materials, coatings or devices that contribute to the generation/storage of energy or the decontamination/remediation of water.

Thus, this Special Issue focuses on but it is not limited to the following topics:

  1. Energy storage devices (batteries, supercapacitors, thermogenerators, etc.).
  2. Materials/electrodes for the storage/generation of energy.
  3. Theoretical works and simulations concerning materials for energy storage applications or for the decontamination of water.
  4. Synthesis and characterization of materials for energy storage applications or for the decontamination of water.
  5. Surface modification of materials for energy storage applications or for the decontamination of water.
  6. Coatings for energy storage applications or for the decontamination of water.
  7. Any design, material, or concept that contributes to the decontamination of the environment.

Dr. Jorge Oliva
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (2 papers)

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Research

17 pages, 4812 KiB  
Article
Ionic Mobility and Charge Carriers Recombination Analyzed in Triple Cation Perovskite Solar Cells
by Juan Jose Rodriguez-Perez, Asya Mhamdi, Jeevan Torres, Isaac Montes-Valenzuela, Jesus Manuel Rivas, Diego Esparza and David Armando Contreras-Solorio
Coatings 2023, 13(10), 1673; https://doi.org/10.3390/coatings13101673 - 25 Sep 2023
Viewed by 1378
Abstract
In this work, a study of a characterization technique based on open circuit voltage decay is carried out to obtain the recombination resistance of mobile charge carriers and ionic migration in triple cation perovskite solar cells. The devices were fabricated with the structure [...] Read more.
In this work, a study of a characterization technique based on open circuit voltage decay is carried out to obtain the recombination resistance of mobile charge carriers and ionic migration in triple cation perovskite solar cells. The devices were fabricated with the structure FTO/TiO2/Cs0.05FA1−XMAXPb(I1−XBrX)3/spiroOMetad/Au. An equivalent circuit, created in Ngspice, was developed adjusting the capacitance and resistance values to fit the experimental open circuit voltage (Voc) decay curves observed. The aim of this study is to associate the perovskite ionic migration with the Voc characteristic time of charge transport in triple cation perovskite solar cells. Thus, an analysis of the open circuit voltage transient behavior was made by taking measurements of the photovoltage as a function of time. The results indicate that the technique shows charge recombination while the device is illuminated. In addition, an enhancement of the recombination resistance when increasing the FA+ concentration was observed. Finally, the transient behavior was associated with MA+, FA+, Cs+ and I− migration, obtaining an ionic mobility in the range between 10−10 to 10−12 cm2 (Vs)−1. Full article
(This article belongs to the Special Issue Materials, Coatings and Devices for Energy Storage/Generation and for Decontamination of Water)
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11 pages, 6160 KiB  
Article
The Effect of a Yb Co-Dopant on the Blue Upconversion and Thermoluminescent Emission of SrLaAlO4:Yb3+,Tm3+ Phosphors
by Nelson Oshogwue Etafo, Carlos Rodriguez Garcia, Tzipatly A. Esquivel-Castro, Manuel I. León-Madrid, Alejandro Santibañez and Jorge Oliva
Coatings 2023, 13(6), 1003; https://doi.org/10.3390/coatings13061003 - 28 May 2023
Cited by 1 | Viewed by 1511
Abstract
In this study, we described the structural, morphological, optical, photoluminescence, and thermoluminescence properties of SrLaAlO4:Tm3+,Yb3+ (SLAO:Tm,Yb) blue-emitting phosphors made by combustion synthesis and a post-annealing treatment at 1200 °C. The Yb co-dopant concentration was varied (1.0, 3.0, 5.0, [...] Read more.
In this study, we described the structural, morphological, optical, photoluminescence, and thermoluminescence properties of SrLaAlO4:Tm3+,Yb3+ (SLAO:Tm,Yb) blue-emitting phosphors made by combustion synthesis and a post-annealing treatment at 1200 °C. The Yb co-dopant concentration was varied (1.0, 3.0, 5.0, and 6.0 mol%) while the Tm dopant concentration was fixed at 5 mol%. According to the X-ray diffraction patterns, all the samples presented the pure tetragonal phase of SrLaAlO4. Scanning electron microscopy analysis showed that the SLAO powders had morphologies of irregular or bar grains with average sizes in the range of 0.5–1.07 µm. Photoluminescence emission under 980 nm excitation showed an intense blue emission peak at 481 nm. The phosphors also emitted red light at 654 nm and a prominent NIR emission at 801 nm. All those emissions correspond to 1G4 → 3H6, 1G4 → 3H4 and 3H4 → 3H6 transitions of Tm3+. The SLAO:Tm,Yb phosphors synthesized with 3.0 mol.% of the Yb co-dopant showed the highest emission intensity in the visible/near-infrared (NIR) range (400–800 nm), and its CIE coordinates corresponded to the blue color (0.19368, 0.15826). Additionally, thermoluminescence emissions were recorded for the SLAO:Tm,Yb phosphors. The samples were previously irradiated with UV wavelengths of 265 nm, 365 nm, and 385 nm prior to the thermoluminescent measurements. After this, the kinetic parameters such as frequency factors, activation energy (E), and order of kinetics were calculated using the Chen method. The thermoluminiscent emissions demonstrated that the SLAO:Yb,Tm phosphors can be used for UV dosimetry. Full article
(This article belongs to the Special Issue Materials, Coatings and Devices for Energy Storage/Generation and for Decontamination of Water)
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