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Studying the Optoelectronic Applications of Coating Materials for Perovskite Crystals
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Studying the Optoelectronic Applications of Coating Materials for Perovskite Crystals

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: 20 November 2025 | Viewed by 1727

Special Issue Editors

Dr. Xueqiong Su

E-Mail
Guest Editor
School of Physics and Optoelectronic Engineering, Beijing University of Technology, Beijing 100124, China
Interests: perovskite and chalcogenide quantum dots and crystals; photoelectric sensor components; nanolaser; biological tracing and photothermal therapy
Dr. Yong Pan

E-Mail Website
Guest Editor
School of Science, Xi’an University of Architecture and Technology, Xi’an 710055, China
Interests: perovskite; nanolaser; hot electron; LED; chalcogenide

Special Issue Information

Dear Colleagues,

Perovskite is a material with a wide range of potential applications. Its unique physicochemical properties make it useful for applications in optoelectronics, electronics and energy.

It is well known that the research and development of coating materials for perovskite crystals has made great progress in recent years. In comparison to conventional polycrystalline organic/perovskite coating materials, emerging coating materials for perovskite crystals with few defects and an intrinsic lack of grain boundaries possess higher charge transport efficiency levels, longer exciton diffusion lengths, and higher photoluminescence quantum yields, which have received increasing interest due to their various electronic/optoelectronic device applications, such as field-effect transistors (FETs), light-emitting diodes (LEDs), photovoltaics (OPVs), lasers, and photodetectors (PDs). Since its inception, perovskite has seen its fields of application expand.

It is necessary to explore new preparation methods to improve the preparation efficiency and quality of perovskite. Meanwhile, the performance of perovskite will be improved to meet the needs of various fields, such as materials, optics, photonics, and solar cells. Most importantly, its applications will continue to expand and the performances of the resulting devices will continue to improve.

This Special Issue will present research that outlines the progress in new material designs, efficient fabrication methods, high-peformance optoelectronic devices, and integrated device applications of coating materials for perovskite crystal. We invite authors from leading groups in the field to contribute original research articles and review articles that reflect recent progress in the use of coating materials for perovskite crystal.

Dr. Xueqiong Su
Dr. Yong Pan
Guest Editors

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.

Keywords

  • coating materials for perovskite crystal
  • photoelectric components
  • quantum dots
  • nanolaser

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Published Papers (2 papers)

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Research

12 pages, 4652 KiB  
Article
Fabrication of Pyramid/Porous Composite Structures for Mitigating Surface Optical Losses in Perovskite Solar Cells
by Xiaohao Shi, Zhou Jiang, Yuxuan Du, Chen Wang, Bin Luo, Xiaodan Wang and Xiangqian Shen
Coatings 2025, 15(3), 273; https://doi.org/10.3390/coatings15030273 - 25 Feb 2025
Viewed by 531
Abstract
Surface optical losses represent one of the critical factors limiting the photogenerated current density and power conversion efficiency (PCE) of perovskite solar cells (PSCs). To address this issue, this paper introduces a pyramid/porous composite structure on the light-facing surface of PSCs. The pyramids [...] Read more.
Surface optical losses represent one of the critical factors limiting the photogenerated current density and power conversion efficiency (PCE) of perovskite solar cells (PSCs). To address this issue, this paper introduces a pyramid/porous composite structure on the light-facing surface of PSCs. The pyramids and porous structures are obtained on silicon surfaces via alkaline wet etching and metal-assisted chemical etching, respectively, and then replicated onto the cell surface using nanoimprint technology. The research findings indicate that the micrometer-scale pyramids induce multiple refractions of incident light, enhancing the probability of photons entering the interior of the cell. Moreover, the nanoscale porous structures on the pyramid mitigate the refractive index difference between air and the pyramid material, thereby reducing reflection losses for single-incident light. For the optimized pyramid/porous structure, a reduction in surface reflectivity from 40.3% to 5.1% is observed on silicon. Benefiting from the suppression of surface reflection losses by the pyramid/porous structure, the response spectrum of the PSCs is significantly improved. Consequently, the photogenerated current density of the device increases from 21.62 to 23.86 mA cm−2, with a relative enhancement in PCE by 9.5%. Full article
(This article belongs to the Special Issue Studying the Optoelectronic Applications of Coating Materials for Perovskite Crystals)
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11 pages, 3585 KiB  
Article
Synthesis and Spectroscopic Properties of Sm3+-Activated Li6Y(BO3)3 Phosphor for Light-Emitting Diode Applications
by Jin Zhao, Yongchun Zhang, Jingwen Lu, Yiming Li and Yong Pan
Coatings 2024, 14(9), 1142; https://doi.org/10.3390/coatings14091142 - 5 Sep 2024
Viewed by 869
Abstract
A series of orange-red emitting Li6Y(BO3)3: Sm3+ (LYBO: Sm3+) phosphors were produced via the high temperature solid-state method. The structure, morphology, element distribution and photoluminescent behavior of these phosphors were thoroughly examined. XRD analysis [...] Read more.
A series of orange-red emitting Li6Y(BO3)3: Sm3+ (LYBO: Sm3+) phosphors were produced via the high temperature solid-state method. The structure, morphology, element distribution and photoluminescent behavior of these phosphors were thoroughly examined. XRD analysis confirmed that all samples exhibited a pure phase. Under 404 nm excitation, the emission spectra included four distinct transitions of Sm3+, attributed to 4G5/2→6H5/2 (565 nm), 4G5/2→6H7/2 (613 nm), 4G5/2→6H9/2 (647 nm) and 4G5/2→6H11/2 (708 nm). The ideal doping level for LYBO: xSm3+ is x = 0.05, and the concentration quenching primarily stems from electric dipole–dipole interactions among the ions. As the amount of Sm3+ dopant was increased, the fluorescence lifetime decreased. The CIE indicates that LYBO: 0.05Sm3+ is located in the orange-red region, exhibiting a high color purity (99%) and low color temperature (1711 K). The phosphor demonstrated excellent thermal stability and its activation energy was 0.3238 eV. In summary, LYBO: Sm3+ is a potential orange-red phosphor that can be coated onto near-ultraviolet chips suitable for W-LEDs. Full article
(This article belongs to the Special Issue Studying the Optoelectronic Applications of Coating Materials for Perovskite Crystals)
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