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Special Issue "New Horizon in Perovskite Nanocrystals"

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A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanophotonics Materials and Devices".

Deadline for manuscript submissions: 10 May 2023 | Viewed by 4304

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Special Issue Editor

Prof. Dr. Eric Wei-Guang Diau

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Guest Editor

Department of Applied Chemistry and Institute of Molecular Science, National Yang Ming Chiao Tung University, 1001 Ta-Hsueh Rd., Hsinchu 30010, Taiwan
Interests: perovskite solar cells; perovskite nanocrystals; 2D Materials; photocatalysis; femtosecond spectroscopy

Special Issue Information

Dear Colleagues,

Due to the impact of global warming and our ever-increasing demand for energy, traditional energy sources based on fossil fuels must be replaced by clean and renewable energy. The Sun is the most important and inexhaustible source of clean energy. Effective utilization of solar energy will be a major goal of human endeavors in the coming decades because of the exhaustion of fossil fuels and environmental concerns. The renaissance of organo-inorganic hybrid halide perovskite materials has particularly set off a revolutionary journey in the history of photovoltaic research. For example, perovskite solar cells have attracted much attention due to their rapid progress in device performance to attain efficiency approaching 26%, which is comparable to silicon-based solar cells. Due to the excellent optoelectronic properties, perovskite-related nanomaterials have been broadly applied not only in solar cells, but also in the fields of lighting devices and photocatalysis. The intriguing physical and chemical properties of halide perovskites offer scientists a fantastic field to work with. Nevertheless, there are still many fundamental issues like lead toxicity and stability in perovskite nanocrystals to be addressed and further investigated.

Therefore, we are pleased to invite you to contribute an article for our Special Issue with the aim towards the subject of perovskite nanocrystals applied in the fields of photovoltaic, photocatalysis and any optoelectronic device. In this Special Issue, original research articles and reviews are welcome. Research areas may include (but are not limited to) the following:

Perovskite Solar Cells;
Perovskite Nanocrystals for Optoelectronic Applications (LED, display, sensor laser, etc.);
Perovskite for Photocatalysis (CO₂ reduction, water splitting, etc.);
Fundamental Studies on Perovskite Nanomaterials (perovskite quantum dots, 2D perovskites, double or triple perovskites).

We look forward to receiving your contributions.

Prof. Dr. Eric Wei-Guang Diau
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. Nanomaterials 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 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 nanocrystals
perovskite quantum dots
2D perovskites
lead-free perovskites
solar cells
photocatalysis
optoelectronics

Published Papers (4 papers)

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Research

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Open AccessArticle

Formation of Highly Efficient Perovskite Solar Cells by Applying Li-Doped CuSCN Hole Conductor and Interface Treatment

and

Nanomaterials 2022, 12(22), 3969; https://doi.org/10.3390/nano12223969 - 10 Nov 2022

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Abstract

Li-doped CuSCN films of various compositions were applied as hole-transporting material (HTM) for mesoscopic perovskite solar cells (PSCs). Those films of ~60 nm thickness, spin-coated on the perovskite layer, exhibit significantly higher crystallinity and hole mobility compared with the pristine CuSCN films. Among them, 0.33% Li-doped CuSCN (Li0.33:CuSCN) shows the best performance as the HTM of mesoscopic PSC. Furthermore, by depositing a slight amount of PCPDTBT over the Li0.33:CuSCN layer, the V_OC was increased to 1.075 V, resulting in an average PCE of 20.24% and 20.65% for the champion device. These PCE and V_OC values are comparable to those of PSC using spiro-OMETAD (PCE: 20.61%, V_OC: 1.089 V). Such a remarkable increase can be attributed to the penetration of the PCPDTBT polymer into the grain boundaries of the Li0.33:CuSCN film, and to the interface with the perovskite layer, leading to the removal of defects on the perovskite surface by paving the non-contacting parts, as well as to the tight interconnection of the Li0.33:CuSCN grains. The PSC device with Li0.33:CuSCN showed a high long-term stability similar to that with bare CuSCN, and the introduction of PCPDTBT onto the perovskite/Li0.33:CuSCN further improved device stability, exhibiting 94% of the initial PCE after 100 days. Full article

(This article belongs to the Special Issue New Horizon in Perovskite Nanocrystals)

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Open AccessArticle

Toward Clean and Economic Production of Highly Efficient Perovskite Solar Module Using a Cost-Effective and Low Toxic Aqueous Lead-Nitrate Precursor

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Nanomaterials 2022, 12(21), 3783; https://doi.org/10.3390/nano12213783 - 27 Oct 2022

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Abstract

Toxic substance usage remains one of the major concerns that must be addressed toward the commercialization of perovskite photovoltaics. Herein, we report a highly efficient perovskite solar module (>13%) fabricated via a wet process that uses a unique aqueous Pb(NO₃)₂ precursor, eliminating the use of toxic organic solvents during perovskite film preparation. In addition, we demonstrate a unique pattern in a monolithically interconnected module structure to check the uniformity of perovskite film and the quality of laser scribing. Finally, we highlight that this aqueous Pb(NO₃)₂ precursor protocol could achieve an enormous cost reduction over conventional PbI₂ organic solutions whether in the laboratory research stage or at mass production scale, strengthening the core competitiveness of perovskite solar cells in the Darwinian ocean of photovoltaic technologies. Full article

(This article belongs to the Special Issue New Horizon in Perovskite Nanocrystals)

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Review

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Open AccessEditor’s ChoiceReview

Recent Strategies for High-Performing Indoor Perovskite Photovoltaics

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Nanomaterials 2023, 13(2), 259; https://doi.org/10.3390/nano13020259 - 07 Jan 2023

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Abstract

The development of digital technology has made our lives more advanced as a society familiar with the Internet of Things (IoT). Solar cells are among the most promising candidates for power supply in IoT sensors. Perovskite photovoltaics (PPVs), which have already attained 25% and 40% power conversion efficiencies for outdoor and indoor light, respectively, are the best candidates for self-powered IoT system integration. In this review, we discuss recent research progress on PPVs under indoor light conditions, with a focus on device engineering to achieve high-performance indoor PPVs (Id-PPVs), including bandgap optimization and defect management. Finally, we discuss the challenges of Id-PPVs development and its interpretation as a potential research direction in the field. Full article

(This article belongs to the Special Issue New Horizon in Perovskite Nanocrystals)

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Open AccessReview

Recent Advancements in Tin Halide Perovskite-Based Solar Cells and Thermoelectric Devices

Ajay Kumar Baranwal

and

Shuzi Hayase

Nanomaterials 2022, 12(22), 4055; https://doi.org/10.3390/nano12224055 - 17 Nov 2022

Viewed by 1167

Abstract

The excellent optoelectronic properties of tin halide perovskites (Sn-PVKs) have made them a promising candidate for replacing toxic Pb counterparts. Concurrently, their enormous potential in photon harvesting and thermoelectricity applications has attracted increasing attention. The optoelectronic properties of Sn-PVKs are governed by the flexible nature of SnI₆ octahedra, and they exhibit extremely low thermal conductivity. Due to these diverse applications, this review first analyzes the structural properties, optoelectronic properties, defect physics, and thermoelectric properties of Sn-PVKs. Then, recent techniques developed to solve limitations with Sn-PVK-based devices to improve their photoelectric and thermoelectric performance are discussed in detail. Finally, the challenges and prospects for further development of Sn-PVK-based devices are discussed. Full article

(This article belongs to the Special Issue New Horizon in Perovskite Nanocrystals)

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