Special Issue "Application and Characterisation of Hybrid Halide Perovskites"

A special issue of Metals (ISSN 2075-4701).

Deadline for manuscript submissions: closed (16 December 2019).

Special Issue Editor

Dr. Vanira Trifiletti
Website
Guest Editor
University of Milano - Bicocca, Department of Materials Science and Milano - Bicocca Solar Energy Research center (MIB-SOLAR), 20125 Milan, Italy
Interests: materials chemistry; semiconductor physics and devices; nanoelectronics; material characterization; thin film technology; solar energy materials; inorganic and hybrid photovoltaics
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Special Issue Information

Dear Colleagues,

This Special Issue concerns the application and characterisation of hybrid halide perovskites, which have, over the last few years, become the focus of the photovoltaic research community. The fast enhancement of the related solar cell performance is due to their unique photophysical properties, such as remarkable optical absorption across a wide range of the solar spectrum, ambipolar charge transport, and long charge carrier diffusion lengths. Hybrid halide perovskites have an ABX3 structure (where A = methylammonium, formamidinium rubidium, caesium; B = tin, lead; X = iodine, chlorine, bromine) and thin films can be grown by different methodologies ranging from vacuum technologies to wet chemistry. Moreover, the need to attract industrial interest is leading to the development of new deposition methods that allow us to obtain uniform layers on a large scale, which can be used in stand-alone devices or in conjunction with other solar cells to increase the final efficiency in a multijunction configuration. Mixing the cations and/or the halides, perovskite with band gap from 1.1 to 3.0 eV can be obtained and, therefore, this class of materials is also attractive for applications in lasing, light-emitting and thermoelectric devices, sensing, and photodetectors. Thus, the research on hybrid halide perovskites is highly various, and it depends on the final application, which also affects the choice of characterization technique. The peculiarities of this material, however, make it challenging to set up a protocol for measuring performance and their operational stability. Lately, tracking the maximum power point is increasingly considered a reliable method for checking the photovoltaic performance, but in other optoelectronic technologies the characterisation procedures must still be well defined.

Original research papers and review papers related to the application and characterisation of hybrid halide perovskites are welcome. The use and characterisation of hybrid halide perovskites reported in the same study are preferred, but applications or characterisation techniques will also be considered for publication.

Dr. Vanira Trifiletti
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 papers will be 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. Metals 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 1600 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

  • hybrid halide perovskites
  • photovoltaic
  • optoelectronic
  • vacuum technologies
  • wet chemistry
  • solution processing
  • characterization procedure

Published Papers (1 paper)

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Research

Open AccessFeature PaperArticle
Molecular Doping for Hole Transporting Materials in Hybrid Perovskite Solar Cells
Metals 2020, 10(1), 14; https://doi.org/10.3390/met10010014 - 20 Dec 2019
Abstract
Hybrid lead halide perovskites have been revolutionary in the photovoltaic research field, reaching efficiencies comparable with the most established photovoltaic technologies, although they have not yet reached their competitors’ stability. The search for a stable configuration requires the engineering of the charge extraction [...] Read more.
Hybrid lead halide perovskites have been revolutionary in the photovoltaic research field, reaching efficiencies comparable with the most established photovoltaic technologies, although they have not yet reached their competitors’ stability. The search for a stable configuration requires the engineering of the charge extraction layers; in this work, molecular doping is used as an efficient method for small molecules and polymers employed as hole transport materials in a planar heterojunction configuration on compact-TiO2. We proved the viability of this approach, obtaining significantly increased performances and reduced hysteresis on compact titania-based devices. We investigated the photovoltaic performance correlated to the hole transport material structure. We have demonstrated that the molecular doping mechanism is more reliable than oxidative doping and have verified that molecular doping in polymeric hole transport materials leads to highly efficient perovskite solar cells, with long-term stability. Full article
(This article belongs to the Special Issue Application and Characterisation of Hybrid Halide Perovskites)
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