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Nanomaterials
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The Central Role of Interfaces in Metal Halide Perovskite-Based Devices
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The Central Role of Interfaces in Metal Halide Perovskite-Based Devices

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Synthesis, Interfaces and Nanostructures".

Deadline for manuscript submissions: closed (20 September 2023) | Viewed by 6794

Special Issue Editor

Dr. Andrea Listorti

E-Mail Website
Guest Editor
Department of Chemistry, University of Bari Aldo Moro, Via Orabona 4, 70125 Bari, Italy
Interests: photoactive perovskites; photovoltaics; photocatalysis; interfaces; photophysics

Special Issue Information

Dear Colleagues,

Metal halide perovskites (MHPs) are one of the candidate materials upon build the future progresses of optoelectronics, due to their unique combination of properties, such as straightforward manufacturing, high and tuneable light absorption, long charge-carrier diffusion lengths, and high defect tolerance. In MHPs-based devices, a central role in their functionality, performance limits and stability is played by the interfaces. The complexity of MHPs boarders arises from the composition of the bulk material itself, which often includes five to six different elemental and molecular components. These compounds are comprised of organic and inorganic building blocks conferring to these materials a true hybrid character, which leads to a variety of possible surface terminations and interface formation processes and related physicochemical mechanisms. Therefore, a profound comprehension of the material surface properties along with the capability of engineering is a fundamental ingredient of MHPs' technological declination.

We are pleased to invite you to submit your latest research outputs to our Special Issue of Nanomaterials entitled “The Central Role of Interfaces in Metal Halide Perovskite-Based Devices”.

This Special Issue of Nanomaterials aims to cover the most recent studies about the surface properties of metal halide perovskite materials along with the reports on smart modification of those surfaces targeting different applications spanning from photovoltaics to photocatalysis. Both original research articles and reviews are welcome in this Special Issue. Research areas may include (but are not limited to) the following: high-efficiency perovskite-based devices; optimization of cell architecture and fabrication techniques of perovskite-based devices; stability and degradation mechanisms of perovskite-based devices; lead-free perovskite-based devices; metal halide perovskite-based photocatalysis.

Dr. Andrea Listorti
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. Nanomaterials is an international peer-reviewed open access semimonthly 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 2900 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.

Keywords

  • perovskite solar cells
  • metal halide perovskite surface properties
  • perovskite-based devices
  • interfaces
  • LED
  • photocatalysis
  • stability
  • nanotechnology
  • optoelectronics properties

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Published Papers (3 papers)

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15 pages, 3137 KiB  
Article
X-ray Investigation of CsPbI3:EuCl3 Infiltrated into Gig-Lox TiO2 Spongy Layers for Perovskite Solar Cells Applications
by Paola La Magna, Carlo Spampinato, Salvatore Valastro, Emanuele Smecca, Valentina Arena, Giovanni Mannino, Ioannis Deretzis, Giuseppe Fisicaro, Corrado Bongiorno and Alessandra Alberti
Nanomaterials 2023, 13(22), 2910; https://doi.org/10.3390/nano13222910 - 7 Nov 2023
Viewed by 1590
Abstract
In this study, we explore the potential of a blended material comprising CsPbI3:EuCl3 perovskite and Gig-Lox TiO2, a unique transparent spongy material known for its multi-branched porous structure, for application in solar cells. The inclusion of [...] Read more.
In this study, we explore the potential of a blended material comprising CsPbI3:EuCl3 perovskite and Gig-Lox TiO2, a unique transparent spongy material known for its multi-branched porous structure, for application in solar cells. The inclusion of EuCl3 in CsPbI3 serves to stabilize the photoactive γ-phase with a bandgap of 1.75 eV, making it suitable for solar energy conversion in tandem solar cells. Our study applies X-ray-based techniques to investigate the structural properties and interfacial behavior within this blended material, in comparison with a reference perovskite layer deposited on glass. In addition, Spectroscopic ellipsometry is complemented with density functional theory calculations and photoluminescence measurements to elucidate the absorption and radiative emission properties of the blend. Notably, our findings reveal a significant quenching of photoluminescence within the blended material, underscoring the pivotal role of the distributed interfaces in facilitating efficient carrier injection from the CsPbI3:EuCl3 perovskite into the Gig-Lox TiO2 sponge. These findings pave the way for the application of the blend as an Electron Transport Layer (ETL) in semi-transparent perovskite solar cells for tandem and building integrated photovoltaics. Full article
(This article belongs to the Special Issue The Central Role of Interfaces in Metal Halide Perovskite-Based Devices)
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15 pages, 2907 KiB  
Article
Novel Spiro-Core Dopant-Free Hole Transporting Material for Planar Inverted Perovskite Solar Cells
by Raquel Royo, José G. Sánchez, Wenhui Li, Eugenia Martinez-Ferrero, Emilio Palomares, Raquel Andreu and Santiago Franco
Nanomaterials 2023, 13(14), 2042; https://doi.org/10.3390/nano13142042 - 10 Jul 2023
Cited by 2 | Viewed by 1893
Abstract
Hole-transporting materials (HTMs) have demonstrated their crucial role in promoting charge extraction, interface recombination, and device stability in perovskite solar cells (PSCs). Herein, we present the synthesis of a novel dopant-free spiro-type fluorine core-based HTM with four ethoxytriisopropylsilane groups (Syl-SC) for [...] Read more.
Hole-transporting materials (HTMs) have demonstrated their crucial role in promoting charge extraction, interface recombination, and device stability in perovskite solar cells (PSCs). Herein, we present the synthesis of a novel dopant-free spiro-type fluorine core-based HTM with four ethoxytriisopropylsilane groups (Syl-SC) for inverted planar perovskite solar cells (iPSCs). The thickness of the Syl-SC influences the performance of iPSCs. The best-performing iPSC is achieved with a 0.8 mg/mL Syl-SC solution (ca. 15 nm thick) and exhibits a power conversion efficiency (PCE) of 15.77%, with Jsc = 20.00 mA/cm2, Voc = 1.006 V, and FF = 80.10%. As compared to devices based on PEDOT:PSS, the iPSCs based on Syl-SC exhibit a higher Voc, leading to a higher PCE. Additionally, it has been found that Syl-SC can more effectively suppress charge interfacial recombination in comparison to PEDOT:PSS, which results in an improvement in fill factor. Therefore, Syl-SC, a facilely processed and efficient hole-transporting material, presents a promising cost-effective alternative for inverted perovskite solar cells. Full article
(This article belongs to the Special Issue The Central Role of Interfaces in Metal Halide Perovskite-Based Devices)
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12 pages, 1601 KiB  
Article
Preparation of Heterojunctions Based on Cs3Bi2Br9 Nanocrystals and g-C3N4 Nanosheets for Photocatalytic Hydrogen Evolution
by María Medina-Llamas, Andrea Speltini, Antonella Profumo, Francesca Panzarea, Antonella Milella, Francesco Fracassi, Andrea Listorti and Lorenzo Malavasi
Nanomaterials 2023, 13(2), 263; https://doi.org/10.3390/nano13020263 - 7 Jan 2023
Cited by 11 | Viewed by 2709
Abstract
Heterojunctions based on metal halide perovskites (MHPs) are promising systems for the photocatalytic hydrogen evolution reaction (HER). In this work, we coupled Cs3Bi2Br9 nanocrystals (NCs), obtained by wet ball milling synthesis, with g-C3N4 nanosheets (NSs), [...] Read more.
Heterojunctions based on metal halide perovskites (MHPs) are promising systems for the photocatalytic hydrogen evolution reaction (HER). In this work, we coupled Cs3Bi2Br9 nanocrystals (NCs), obtained by wet ball milling synthesis, with g-C3N4 nanosheets (NSs), produced by thermal oxidation of bulk g-C3N4, in air. These methods are reproducible, inexpensive and easy to scale up. Heterojunctions with different loadings of Cs3Bi2Br9 NCs were fully characterised and tested for the HER. A relevant improvement of H2 production with respect to pristine carbon nitride was achieved at low NCs levels reaching values up to about 4600 µmol g−1 h−1. This work aims to provide insights into the synthesis of inexpensive and high-performing heterojunctions using MHP for photocatalytic applications. Full article
(This article belongs to the Special Issue The Central Role of Interfaces in Metal Halide Perovskite-Based Devices)
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