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Journals
Crystals
Special Issues
Recent Advances in Two-Dimensional Perovskite Solar Cells
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Recent Advances in Two-Dimensional Perovskite Solar Cells

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

Deadline for manuscript submissions: closed (28 February 2023)

Special Issue Editors

Dr. Xiaoyin Xie

E-Mail Website
Guest Editor
School of Chemistry and Chemical Technology, Hubei Polytechnic University, Huangshi 435003, China
Interests: solar cells; energy conversion; energy storage; excited states
Dr. Guanchen Liu

E-Mail Website
Guest Editor
School of Chemistry and Chemical Technology, Hubei Polytechnic University, Huangshi 435003, China
Interests: solar cells; energy conversion and storage
Dr. Chongyang Xu

E-Mail Website
Guest Editor
Yantai Research Institute and Graduate School of HEU, Harbin Engineering University, Harbin 150001, China
Interests: perovskite photovoltaic; perovskite sensor

Special Issue Information

Dear Colleagues,

In the past few years, 2D perovskite solar cells have shown significantly improved long-term stability, showing better commercial application potential. In this Special Issue, we will focus on cutting-edge studies of 2D perovskite solar cells from both theoretical and experimental investigations. In particular, this collection covers current areas of research that are concerned with the effect of preparation methods and/or the presence of defects upon the electronic property of 2D perovskite solar cells, work related to the effect of elements doping on its electronic properties and the possibility of employing 2D perovskite materials in future applications for new energy, as well as reviews of experimental and theoretical results, to date, on fabrication 2D perovskite solar cells.

This Special Issue on 2D perovskite solar cells aims to provide a unique and international forum covering a broad range of findings involving electronic mechanics and theory, material morphology mechanics, and engineering/applications. Scientists working from various disciplines are invited to contribute to this cause.

The topics summarized in the keywords broadly cover examples of the great number of subtopics in mind. The volume is especially open to any innovative contributions involving mechanics aspects of the topics and/or subtopics.

Dr. Xiaoyin Xie
Dr. Guanchen Liu
Dr. Chongyang Xu
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. Crystals 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

  • 2D perovskite solar cells
  • excited states theory
  • crystal defect
  • elements doping
  • carrier transport

Published Papers (1 paper)

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Research

11 pages, 2526 KiB  
Article
Electron Transport Layer-Free Ruddlesden–Popper Two-Dimensional Perovskite Solar Cells Enabled by Tuning the Work Function of Fluorine-Doped Tin Oxide Electrodes
by Ningfei Dong, Haosu Zhou, Lei Wang and Zhihai Liu
Crystals 2022, 12(8), 1090; https://doi.org/10.3390/cryst12081090 - 4 Aug 2022
Cited by 1 | Viewed by 1925
Abstract
Organic–inorganic halide two-dimensional (2D) layered perovskites have been demonstrated to have better environmental stability than conventional three-dimensional perovskites. In this study, we investigate the fabrication of electron transport layer (ETL)-free Ruddlesden–Popper 2D perovskite solar cells (PSCs) by tuning the work function of a [...] Read more.
Organic–inorganic halide two-dimensional (2D) layered perovskites have been demonstrated to have better environmental stability than conventional three-dimensional perovskites. In this study, we investigate the fabrication of electron transport layer (ETL)-free Ruddlesden–Popper 2D perovskite solar cells (PSCs) by tuning the work function of a fluorine-doped tin oxide (FTO) electrode. With the deposition of polyethylenimine (PEIE) onto its surface, the work function of the FTO electrode could be raised from −4.72 to −4.08 eV, which is more suitable for electron extraction from the perovskite absorber. Using this technique, the ETL-free 2D PSCs exhibited an excellent power conversion efficiency (PCE) of 12.7% (on average), which is substantially higher than that of PSCs fabricated on a pristine FTO electrode (9.6%). Compared with the PSCs using TiO2, the ETL-free PSCs could be fabricated under a low processing temperature of 100 °C with excellent long-term stability. After 15 days, the FTO/PEIE-based ETL-free PSCs showed a PCE degradation of 16%, which is significantly lower than that of the TiO2-based case (29%). The best-performing PSC using a FTO/PEIE cathode showed a high PCE of 13.0%, with a small hysteresis degree of 2.3%. Full article
(This article belongs to the Special Issue Recent Advances in Two-Dimensional Perovskite Solar Cells)
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