New Insights into Perovskite Materials: From Fundamental Science to Applications

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Materials for Energy Applications".

Deadline for manuscript submissions: 20 December 2024 | Viewed by 580

Special Issue Editors


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Guest Editor
State Key Laboratory of Dynamic Measurement Technology, North University of China, Taiyuan 030051, China
Interests: perovskite functional devices; micro–nano photoelectric material devices
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Guest Editor
College of Electronic Information and Optical Engineering, Taiyuan University of Technology, Taiyuan 030002, China
Interests: perovskite solar cells; optoelectronic materials and devices
Department of Opto-Electronics Science Technology, Tianjin University, Tianjin 300072, China
Interests: perovskite photodetector; solar cell; materials design
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues, 

ABX3-based perovskites have potential applications in photovoltaics and optoelectronics due to their unique photoelectric properties, such as high absorption coefficients, long carrier diffusion lengths, unusually high defect tolerance, and adjustable band gaps. Perovskites can be divided into organic and inorganic metal halides according to their chemical compositions and have great application potential in various fields such as solar cells, light-emitting diodes, detectors, and laser devices. Simultaneous improvements in performance and stability over the past few decades, as well as the availability of solution-printed laminated structures, have seen these materials emerge as low-cost alternatives to the commercial photovoltaic industry. Although perovskites have been extensively studied, addressing long-term stability issues and further developing photoelectric conversion efficiency will be important to the challenge of achieving large-scale commercial production. The purpose of this Special Issue is to collect the latest research progress and results of perovskites, ranging from the basic theory, synthesis methods, and structural design, to their extensive applications, as well as the possibility of the widespread use of perovskites in future applications. We invite scientists from different disciplines to contribute their work to this cause.

Dr. Tengteng Li
Dr. Shiqi Li
Dr. Silei Wang
Guest Editors

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Keywords

  • perovskite materials
  • perovskite solar cells
  • perovskite light-emitting diodes
  • perovskite photodetectors
  • perovskite lasers
  • perovskite-based new theory
  • perovskite-based applications

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Published Papers (1 paper)

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Research

13 pages, 6344 KiB  
Article
Defect Passivation for Highly Efficient and Stable Sn-Pb Perovskite Solar Cells
by Tengteng Li, Fupeng Ma, Yafeng Hao, Huijia Wu, Pu Zhu, Ziwei Li, Fengchao Li, Jiangang Yu, Meihong Liu, Cheng Lei and Ting Liang
Crystals 2024, 14(9), 802; https://doi.org/10.3390/cryst14090802 - 11 Sep 2024
Viewed by 421
Abstract
Sn-Pb perovskite solar cells, which have the advantages of low toxicity and a simple preparation process, have witnessed rapid development in recent years, with the power conversion efficiency for single-junction solar cells exceeding 23%. Nevertheless, the problems of poor crystalline quality of Sn-Pb [...] Read more.
Sn-Pb perovskite solar cells, which have the advantages of low toxicity and a simple preparation process, have witnessed rapid development in recent years, with the power conversion efficiency for single-junction solar cells exceeding 23%. Nevertheless, the problems of poor crystalline quality of Sn-Pb perovskite films arising from rapid crystallization rate and facile oxidation of Sn2+ to Sn4+ have become key issues for the further development of Sn-Pb perovskite solar cells. Herein, we report the incorporation of triazinamide (N-(6-methyl-3-oxo-2,5-dihydro-1,2,4-Triazin-4(3H)-YL) acetamide) as an additive to regulate the crystalline growth of Sn-Pb perovskite films, resulting in films with low trap density and large grain size. The triazinamide additive effectively passivated defects in the perovskite films. As a result, the triazinamide-modified perovskite solar cells achieved a higher efficiency of 15.73%, compared with 13.32% for the control device, significantly improving device performance. Notably, the optimal triazinamide-modified perovskite solar cell maintained 72% of its initial power conversion efficiency after being stored in an air environment for nearly 300 h, while only 18% of the power conversion efficiency of the control perovskite solar cell was retained. This study proposes an effective strategy for fabricating highly efficient and stable Sn-Pb perovskite solar cells. Full article
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