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Perovskite Nanomaterials for Functional Devices and Sensors
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Perovskite Nanomaterials for Functional Devices and Sensors

A special issue of Materials (ISSN 1996-1944). This special issue belongs to the section "Materials Physics".

Deadline for manuscript submissions: closed (20 February 2023) | Viewed by 3620

Special Issue Editor

Dr. Bo Jiao

E-Mail Website
Guest Editor
Key Laboratory for Physical Electronics and Devices of the Ministry of Education, Xi'an Jiaotong University, Xi'an 710049, China
Interests: perovskite light-emitting diodes; perovskite solar cells; perovskite detectors

Special Issue Information

Dear Colleagues,

Metal halide perovskite nanomaterials recently emerged as star materials in many fields, including solar cells, light-emitting diodes, and detectors. The purpose of this Special Issue is to highlight recent advances in perovskite nanomaterials for functional devices. Examples include the synthesis and characterization of novel perovskite nanocrystals, perovskite quantum dot light-emitting diodes, perovskite quantum dot solar cells, perovskite-nanomaterials-based detectors, perovskite nanocrystal scintillators, etc.

This Special Issue covers all aspects of perovskite nanomaterials, including theory, synthetic efforts, novel processing methods, and the developments in device performance. In addition to lead halide-based nanomaterials, lead-free perovskites nanomaterials will also be included.

Dr. Bo Jiao
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. Materials 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 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.

Keywords

  • perovskite nanomaterials
  • perovskite solar cells
  • perovskite light-emitting diodes
  • perovskite detectors
  • perovskite scintillators
  • perovskite X-ray detectors

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Published Papers (2 papers)

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Research

10 pages, 2166 KiB  
Article
Sr-Doping All-Inorganic CsPbBr3 Perovskite Thick Film for Self-Powered X-ray Detectors
by Chuanqi Liu, Wen Zhang, Dingyu Yang, Haibo Tian and Jun Zhu
Materials 2023, 16(5), 1783; https://doi.org/10.3390/ma16051783 - 21 Feb 2023
Cited by 3 | Viewed by 1669
Abstract
The all-inorganic perovskite cesium lead bromine (CsPbBr3) has attracted much attention in the field of X-ray detectors because of its high X-ray absorption coefficient, high carrier collection efficiency, and easy solution preparation. The low-cost anti-solvent method is the main method to [...] Read more.
The all-inorganic perovskite cesium lead bromine (CsPbBr3) has attracted much attention in the field of X-ray detectors because of its high X-ray absorption coefficient, high carrier collection efficiency, and easy solution preparation. The low-cost anti-solvent method is the main method to prepare CsPbBr3; during this process, solvent volatilization will bring a large number of holes to the film, leading to the increase of defects. Based on the heteroatomic doping strategy, we propose that Pb2+ should be partially replaced by Sr2+ to prepare leadless all-inorganic perovskite. The introduction of Sr2+ promoted the ordered growth of CsPbBr3 in the vertical direction, increased the density and uniformity of the thick film, and achieved the goal of CsPbBr3 thick film repairing. In addition, the prepared CsPbBr3 and CsPbBr3:Sr X-ray detectors were self-powered without external bias, maintaining a stable response during on and off states at different X-ray dose rates. Furthermore, the detector base on 160 µm CsPbBr3:Sr had a sensitivity of 517.02 µC Gyair−1 cm−3 at zero bias under the dose rate of 0.955 µGy ms−1 and it obtained a fast response speed of 0.053–0.148 s. Our work provides a new opportunity to produce cost-effective and highly efficient self-powered perovskite X-ray detectors in a sustainable way. Full article
(This article belongs to the Special Issue Perovskite Nanomaterials for Functional Devices and Sensors)
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12 pages, 1144 KiB  
Article
Octahedral Tilting in Homologous Perovskite Series CaMoO3-SrMoO3-BaMoO3 Probed by Temperature-Dependent EXAFS Spectroscopy
by Georgijs Bakradze and Alexei Kuzmin
Materials 2022, 15(21), 7619; https://doi.org/10.3390/ma15217619 - 30 Oct 2022
Cited by 2 | Viewed by 1643
Abstract
Local distortions in perovskites can be induced by cation displacements and/or by the tilting and rotating of cation–anion octahedra. Both phenomena have been subject to intense investigations over many years. However, there are still controversies in the results obtained from experimental techniques that [...] Read more.
Local distortions in perovskites can be induced by cation displacements and/or by the tilting and rotating of cation–anion octahedra. Both phenomena have been subject to intense investigations over many years. However, there are still controversies in the results obtained from experimental techniques that are sensitive to long-range order (X-ray, neutron, or electron diffraction) and those sensitive to short-range order (X-ray absorption spectroscopy). In this study, we probed the details of the local environment in AMoO3 perovskites (A = Ca, Sr, Ba) using extended X-ray absorption fine structure (EXAFS) in a wide temperature range (10–300 K). An advanced analysis of the EXAFS spectra within the multiple-scattering formalism using the reverse Monte Carlo method enhanced by an evolutionary algorithm allowed us (i) to extract detailed information on metal–oxygen and metal–metal radial distribution functions, and metal–oxygen–metal and oxygen–metal–oxygen bond angle distribution functions, and (ii) to perform polyhedral analysis. The obtained results demonstrate the strong sensitivity of the EXAFS spectra to the tilting of [MoO6] octahedra induced by the differences in the sizes of alkaline earth metal cations (Ca2+, Sr2+, and Ba2+). Full article
(This article belongs to the Special Issue Perovskite Nanomaterials for Functional Devices and Sensors)
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