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Advanced Perovskite Films for Photovoltaic Application
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Advanced Perovskite Films for Photovoltaic Application

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: closed (15 November 2022) | Viewed by 24656

Special Issue Editor

Dr. Meng Li

E-Mail Website
Guest Editor
Helmholtz-Zentrum Berlin für Materialien und Energie, Berlin, Germany
Interests: perovskite solar cells; surface engineering; indoor photovoltaic; lead-free
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

We would like to invite you to submit your work to this Special Issue on “Advanced Perovskite Films for Photovoltaic”. Hybrid organic–inorganic perovskite solar cells have attracted enormous research interest and have developed rapidly. In just a few years, the power conversion efficiency of PSCs has rapidly increased from the initial 3.8% to the certified 25.5% and has shown great potential for continuous improvement. The focus of this Special Issue will be on the technology of perovskite thin films and perovskite devices. Excellent perovskite film and crystal characteristics can effectively improve the stability and energy conversion efficiency of the device. Especially in interface passivation, crystal optimization, etc., this has been widely used to improve device efficiency. The aim of this Special Issue is to present the latest experimental and theoretical developments in the field, through a combination of original research papers and review articles from leading groups around the world.

In particular, the topic of interest includes but is not limited to

  • Interface passivation and crystal optimization of perovskite film;
  • Preparation of indoor perovskite photovoltaic devices;
  • Optimization process of lead-free perovskite devices;
  • Preparation of a new two-dimensional perovskite devices.

Dr. Meng Li
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. 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

  • perovskite solar cells
  • interface passivation
  • indoor photovoltaic
  • deposition process
  • lead-free perovskite

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Related Special Issue

Published Papers (6 papers)

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Research

Jump to: Review

10 pages, 2658 KiB  
Article
Investigation on Film Quality and Photophysical Properties of Narrow Bandgap Molecular Semiconductor Thin Film and Its Solar Cell Application
by Xiaotong Li, Xiaoping Zou, Chunqian Zhang, Jin Cheng, Guangdong Li, Yifei Wang, Xiaolan Wang, Keke Song, Baokai Ren and Junming Li
Coatings 2021, 11(11), 1300; https://doi.org/10.3390/coatings11111300 - 27 Oct 2021
Cited by 1 | Viewed by 1704
Abstract
Hexane-1,6-diammonium pentaiodobismuth (HDA-BiI5) is one of the narrowest bandgap molecular semiconductor reported in recent years. Through the study of its energy band structure, it can be identified as an N-type semiconductor and is able to absorb most of the visible light, [...] Read more.
Hexane-1,6-diammonium pentaiodobismuth (HDA-BiI5) is one of the narrowest bandgap molecular semiconductor reported in recent years. Through the study of its energy band structure, it can be identified as an N-type semiconductor and is able to absorb most of the visible light, making it suitable to fabricate solar cells. In this paper, SnO2 was used as an electron transport layer in HDA-BiI5-based solar cells, for its higher carrier mobility compared with TiO2, which is the electron transport layer used in previous researches. In addition, the dilution ratio of SnO2 solution has an effect on both the morphology and photophysical properties of HDA-BiI5 films. At the dilution ratio of SnO2:H2O = 3:8, the HDA-BiI5 film has a better morphology and is less defect inside, and the corresponding device exhibited the best photovoltaic performance. Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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11 pages, 2948 KiB  
Article
Photodetector without Electron Transport Layer Based on Hexane-1,6-Diammonium Pentaiodobismuth (HDA-BiI5) Molecular Semiconductor
by Yifei Wang, Xiaoping Zou, Jialin Zhu, Chunqian Zhang, Jin Cheng, Junqi Wang, Xiaolan Wang, Xiaotong Li, Keke Song, Baokai Ren and Junming Li
Coatings 2021, 11(9), 1099; https://doi.org/10.3390/coatings11091099 - 12 Sep 2021
Cited by 2 | Viewed by 2212
Abstract
With the development of the semiconductor industry, research on photoelectronic devices has been emphasized. In this paper, a molecular semiconductor material with a narrow bandgap of hexane-1,6-diammonium pentaiodobismuth (HDA-BiI5) was utilized to prepare photodetectors without electron transport layers. Using a single [...] Read more.
With the development of the semiconductor industry, research on photoelectronic devices has been emphasized. In this paper, a molecular semiconductor material with a narrow bandgap of hexane-1,6-diammonium pentaiodobismuth (HDA-BiI5) was utilized to prepare photodetectors without electron transport layers. Using a single light source, the effects of different wavelengths and different powers on the photoresponsivity, switching ratio, specific detectivity, and external quantum efficiency of the device were investigated. It is demonstrated that this device has excellent responsivity, specific detectivity, stability, and repeatability, and this work will help expand the application of molecular semiconductor materials for photodetection. Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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17 pages, 7524 KiB  
Article
CuI/Spiro-OMeTAD Double-Layer Hole Transport Layer to Improve Photovoltaic Performance of Perovskite Solar Cells
by Chaoqun Lu, Weijia Zhang, Zhaoyi Jiang, Yulong Zhang and Cong Ni
Coatings 2021, 11(8), 978; https://doi.org/10.3390/coatings11080978 - 17 Aug 2021
Cited by 8 | Viewed by 4971
Abstract
The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new [...] Read more.
The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new method which can be used to achieve a double-layer HTL, by inserting a CuI layer between the perovskite layer and Spiro-OMeTAD layer via a solution spin coating process. The CuI layer deposited on the surface of the perovskite film directly covers the rough perovskite surface, covering the surface defects of the perovskite, while a layer of CuI film avoids the defects caused by Spiro-OMetad pinholes. The double-layer HTLs improve roughness and reduce charge recombination of the Spiro-OMeTAD layer, thereby resulting in superior hole extraction capabilities and faster hole mobility. The CuI/Spiro-OMeTAD double-layer HTLs-based devices were prepared in N2 gloveboxes and obtained an optimized PCE (photoelectric conversion efficiency) of 17.44%. Furthermore, their stability was improved due to the barrier effect of the inorganic CuI layer on the entry of air and moisture into the perovskite layer. The results demonstrate that another deposited CuI film is a promising method for realizing high-performance and air-stable PSCs. Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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10 pages, 2049 KiB  
Article
Effect of SnO2 Colloidal Dispersion Solution Concentration on the Quality of Perovskite Layer of Solar Cells
by Keke Song, Xiaoping Zou, Huiyin Zhang, Chunqian Zhang, Jin Cheng, Baoyu Liu, Yujun Yao, Xiaolan Wang, Xiaotong Li, Yifei Wang and Baokai Ren
Coatings 2021, 11(5), 591; https://doi.org/10.3390/coatings11050591 - 18 May 2021
Cited by 7 | Viewed by 5279
Abstract
The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as [...] Read more.
The electron transport layer (ETL) is critical to carrier extraction for perovskite solar cells (PSCs). Moreover, the morphology and surface condition of the ETL could influence the topography of the perovskite layer. ZnO, TiO2, and SnO2 were widely investigated as ETL materials. However, TiO2 requires a sintering process under high temperature and ZnO has the trouble of chemical instability. SnO2 possesses the advantages of low-temperature fabrication and high conductivity, which is critical to the performance of PSCs prepared under low temperature. Here, we optimized the morphology and property of SnO2 by modulating the concentration of a SnO2 colloidal dispersion solution. When adjusting the concentration of SnO2 colloidal dispersion solution to 5 wt.% (in water), SnO2 film indicated better performance and the perovskite film has a large grain size and smooth surface. Based on high efficiency (16.82%), the device keeps a low hysteresis index (0.23). Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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11 pages, 4574 KiB  
Article
Impacts of MAPbBr3 Additive on Crystallization Kinetics of FAPbI3 Perovskite for High Performance Solar Cells
by Zhenhuang Su, Chenyue Wang, Guanhaojie Zheng and Xingyu Gao
Coatings 2021, 11(5), 545; https://doi.org/10.3390/coatings11050545 - 6 May 2021
Cited by 7 | Viewed by 4207
Abstract
Blending perovskite with different cations has been successful in improving performance of perovskite solar cells, but the complex pathway of perovskite crystal formation remains a mystery, hindering its further development. In this paper, the detailed crystallization process of formamidinium lead iodide (FAPbI3 [...] Read more.
Blending perovskite with different cations has been successful in improving performance of perovskite solar cells, but the complex pathway of perovskite crystal formation remains a mystery, hindering its further development. In this paper, the detailed crystallization process of formamidinium lead iodide (FAPbI3) perovskite films doped by methylammonium lead bromide (MAPbBr3) additive was investigated by in situ grazing incident wide-angle X-ray scattering measurements during both spin coating and annealing. During spin-coating, it was found that the FAPbI3 perovskite precursor easily formed a mixture of black perovskite phase (α phase) and non-perovskite yellow phase (δ phase) after the addition of MAPbBr3, whereas only δ phase formed without MAPbBr3. The δ phase gradually converted to α phase during annealing and there was only α phase left in both films with and without MAPbBr3. However, the doped films presented high film quality without PbI2 residue in contrast to the undoped films. These findings imply that the MAPbBr3 additive can effectively suppress the formation of the unfavorable δ phase and trigger the formation of the optically active α phase even during spin-coating, which enhances the film quality possibly by removing the energy barriers from δ phase to α phase at room temperature. Finally, PSCs based on MAPbBr3-doped FAPbI3 were fabricated with a champion efficiency as high as 19.4% from 14.2% for the PSCs based on undoped FAPbI3. Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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Review

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14 pages, 3858 KiB  
Review
Dopants for Enhanced Performance of Tin-Based Perovskite Solar Cells—A Short Review
by Hairui Liu, Zuhong Zhang, Feng Yang, Jien Yang, Andrews Nirmala Grace, Junming Li, Sapana Tripathi and Sagar M. Jain
Coatings 2021, 11(9), 1045; https://doi.org/10.3390/coatings11091045 - 30 Aug 2021
Cited by 5 | Viewed by 5148
Abstract
Lead-based perovskite solar cells had reached a bottleneck and demonstrated significant power conversion efficiency (PCE) growth matching the performance of traditional polycrystalline silicon solar cells. Lead-containing perovskite solar cell technology is on the verge of commercialization and has huge potential to replace silicon [...] Read more.
Lead-based perovskite solar cells had reached a bottleneck and demonstrated significant power conversion efficiency (PCE) growth matching the performance of traditional polycrystalline silicon solar cells. Lead-containing perovskite solar cell technology is on the verge of commercialization and has huge potential to replace silicon solar cells, but despite the very promising future of these perovskite solar cells, the presence of water-soluble toxic lead content is a growing concern in the scientific community and a major bottleneck for their commercialization. The less toxic, tin-based perovskite solar cells are promising alternatives for lead-free perovskite solar cells. Like lead-based perovskite, the general chemical formula composition of tin-based perovskite is ASnX3, where A is a cation and X is an anion (halogen). It is evident that tin-based perovskites, being less-toxic with excellent photoelectric properties, show respectable performance. Recently, numerous studies reported on the fabrication of Sn-based perovskite solar cells. However, the stability of this novel lead-free alternative material remains a big concern. One of the many ways to stabilize these solar cells includes addition of dopants. In this context, this article summarizes the most important fabrication routes employing dopants that have shown excellent stability for tin-based perovskite photovoltaics and elaborates the prospects of lead-free, tin based stable perovskite photovoltaics. Full article
(This article belongs to the Special Issue Advanced Perovskite Films for Photovoltaic Application)
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