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Chemistry Innovatives in Perovskite Based Materials

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Materials Chemistry".

Deadline for manuscript submissions: closed (31 March 2025) | Viewed by 1141

Special Issue Editors


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Guest Editor
1. Department of Physics, The Hong Kong University of Science and Technology, Hong Kong
2. Department of Chemical Engineering and Biotechnology, University of Cambridge, Cambridge, UK
Interests: perovskite materials
Department of Physics, Cavendish Laboratory, University of Cambridge, Cambridge, UK
Interests: perovskite materials

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Guest Editor
State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
Interests: perovskite; photodetector; radiation detector; supramolecular
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Special Issue Information

Dear Colleagues,

Metal halide perovskites have attracted widespread research and development interest as their broad applicability and promising potential in photovoltaics, light-emission diodes, radiation detectors, and transistors.

Significant progress has been made in developing perovskite materials for solar cells, where efficiencies have increased rapidly from less than 10% to over 25% in the last decade. This has been achieved through discovering innovative materials and optimizing device architectures, such as tandem and perovskite/silicon hybrid solar cells. Moreover, the unique molecular structure and properties of perovskite materials, such as high color purity and brightness, have enabled their use in developing highly efficient and cost-effective light-emitting diodes and photodetectors. Despite these advances, challenges remain in the development of perovskite materials for optoelectronic devices, and continued research is required to address these challenges and to open up new possibilities for light harvesting and energy consumption, especially in terms of stability, toxicity, scalability, higher efficiency and better performance in optoelectronic devices.

The development of perovskite based materials depends on a multidisciplinary approach that involves contributions from various fields of chemistry, including chemistry, physical chemistry, inorganic and organic chemistry, and chemical engineering. The molecular structure of perovskites influences their properties, including their optoelectronic properties, stability, and toxicity. The chemistry of perovskite materials involves the design and synthesis of new molecules, including their crystal structure and composition, to optimize these properties. The use of innovative synthetic techniques and new molecular designs in organic and inorganic chemistry has enabled the development of perovskite materials with improved stability, better optoelectronic properties, and reduced toxicity. Physical chemistry has also played a crucial role in investigating the photophysical properties of perovskite materials, including their absorption, emission, and carrier dynamics. These properties have been optimized through the design of new materials and device architectures, leading to higher efficiency and better performance in optoelectronic devices. Moreover, Chemical engineering has played a significant role in the scalability of perovskite based materials. Researchers have developed innovative processing techniques for producing perovskite materials on a larger scale, which has enabled the commercialization of perovskite solar cells. Continued research in this area is necessary to further improve the scalability of perovskite based materials and make them a practical and cost-effective solution for renewable energy.

This Special Issue aims to act as a forum for the dissemination of the latest information on the new advanced synthetic techniques and new designs of Perovskite Based Materials. These make the new molecules structure with better stability, more environmentally friendly, and better optoelectronic properties. We encourage authors to submit manuscripts in the form of a research paper or review in all respects above.

Dr. Dengyang Guo
Dr. Linjie Dai
Prof. Dr. Haotong Wei
Guest Editors

Manuscript Submission Information

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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. Molecules 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 2700 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
  • optoelectronic devices
  • solar cells
  • LED
  • TFT
  • detector
  • semiconductor

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Published Papers (2 papers)

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Research

12 pages, 3483 KiB  
Article
A Cascade Bilayer Electron-Transporting Layer for Enhanced Performance and Stability of Self-Powered All-Inorganic Perovskite Photodetectors
by Yu Hyun Kim and Jae Woong Jung
Molecules 2025, 30(10), 2195; https://doi.org/10.3390/molecules30102195 - 17 May 2025
Viewed by 184
Abstract
This study aims to enhance optoelectronic properties of all-inorganic perovskite photodetectors (PDs) by incorporating a bilayer electron transport layer (ETL). The bilayer ETL composed of SnO2 and ZnO effectively optimizes energy level alignment at the interface, facilitating efficient electron extraction from the [...] Read more.
This study aims to enhance optoelectronic properties of all-inorganic perovskite photodetectors (PDs) by incorporating a bilayer electron transport layer (ETL). The bilayer ETL composed of SnO2 and ZnO effectively optimizes energy level alignment at the interface, facilitating efficient electron extraction from the CsPbI2Br perovskite layer while suppressing shunt pathways. Additionally, it enhances interfacial properties by mitigating defects and minimizing dark current leakage, thereby improving overall device performance. As a result, the bilayer ETL-based PDs exhibit broadband photoresponsivity in 300 to 700 nm with a responsivity of 0.45 A W−1 and a specific detectivity of 9 × 1013 Jones, outperforming the single-ETL devices. Additionally, they demonstrate stable cyclic photoresponsivity with fast response times (14 μs for turn-on and 32 μs for turn-off). The bilayer ETL also improves long-term reliability and thermal stability, highlighting its potential for high performance, reliability, and practical applications of all-inorganic perovskite PDs. Full article
(This article belongs to the Special Issue Chemistry Innovatives in Perovskite Based Materials)
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14 pages, 3342 KiB  
Article
Controlling Crystallization of Aqueous-Processed Planar Perovskite Films via Sodium Dodecyl Sulfonate Surfactant Modulation
by Na Zheng, Cunyun Xu, Xiaofeng He, Gaobo Xu, Jiancheng You, Zhongjun Dai, Han Jiang, Qianqian Zhang and Qunliang Song
Molecules 2025, 30(10), 2146; https://doi.org/10.3390/molecules30102146 - 13 May 2025
Viewed by 168
Abstract
Solution processing represents a widely adopted methodology for perovskite solar cell (PSC) fabrication. Nevertheless, the prevalent use of toxic solvents and anti-solvents in conventional approaches presents significant challenges for PSC commercialization. Water, as an environmentally benign solvent with exceptional Pb(NO3)2 [...] Read more.
Solution processing represents a widely adopted methodology for perovskite solar cell (PSC) fabrication. Nevertheless, the prevalent use of toxic solvents and anti-solvents in conventional approaches presents significant challenges for PSC commercialization. Water, as an environmentally benign solvent with exceptional Pb(NO3)2 solubility, offers a promising alternative for perovskite film preparation. However, the sluggish conversion kinetics of Pb(NO3)2 to perovskite often results in morphological imperfections and incomplete conversion, particularly detrimental to planar inverted PSCs derived from aqueous solutions, which currently exhibit limited power conversion efficiencies (PCE) of approximately 6%. To mitigate the Ostwald ripening effect induced by slow reaction kinetics and enhance the conversion efficiency of deep-layer Pb(NO3)2 and PbI2, this study proposes a strategy of increasing the pore size in porous Pb(NO3)2 structures. Through the incorporation of sodium dodecyl sulfonate (SDS) surfactant into the Pb(NO3)2 precursor solution, we successfully fabricated high-quality perovskite films. Comprehensive characterization revealed that SDS doping effectively modified the surface properties of Pb(NO3)2 films, accelerating their conversion to perovskite. The optimized PSCs based on SDS-modified perovskite films demonstrated improved energy level alignment, enhanced charge carrier extraction, and suppressed non-radiative recombination. Consequently, the PCE of planar inverted aqueous PSCs increased significantly from 12.27% (control devices) to 14.82% following surfactant modification. After being stored in a nitrogen glove box for 800 h, the performance of the device still remained above 90% of its original level. It can still maintain 60% of its original performance after a 100 h heating aging test at 80 degrees. Full article
(This article belongs to the Special Issue Chemistry Innovatives in Perovskite Based Materials)
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