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Nanomaterials
Special Issues
Perovskite Materials and Devices–– Progress and Challenges
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Perovskite Materials and Devices–– Progress and Challenges

A special issue of Nanomaterials (ISSN 2079-4991).

Deadline for manuscript submissions: closed (24 September 2019) | Viewed by 35523

Special Issue Editors

Prof. Haibo Zeng

E-Mail Website
Guest Editor
Nanjing University of Science and Technology, MIIT Key Laboratory of Advanced Display Materials and Devices, Institute of Optoelectronics & Nanomaterials, Nanjing University of Science and Technology, Nanjing 210094, China
Interests: perovskite optoelectronic devices
Prof. Dr. Shin-Tson Wu

E-Mail Website
Guest Editor
College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA
Interests: advanced liquid crystal display materials, display devices, and device modeling; electronic laser beam steering and adaptive optics using fast-response spatial light modulators; adaptive liquid crystal and liquid lenses for forveated imaging and zoom lens; bio-inspired tunable optical filters using cholesteric liquid crystals
Prof. Yajie Dong

E-Mail Website
Guest Editor
Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32816-2700, USA
Interests: optoelectronics & integrated photonics, LEDs & laser diodes, quantum dots & nanostructures, nanophotonics, nanofabrication, hybrid materials & devices, optical sensing, lasers in medicine, integrated-optic sensing, displays
Prof. Dr. Jizhong Song

E-Mail Website1 Website2
Guest Editor
Nanjing University of Science and Technology, Nanjing, China
Interests: synthesis of nanomaterials and their opto-electronic properties; nanomaterials for optoelectronic devices, such as light-emitting diodes, photodetectors, solar cells and memories; flexible and stretchable devices for wearable fields; quantum dot light-emitting diodes; light-emitting mechanism and carrier dynamics of semiconductor nanomaterials; metal halide perovskite-based optoelectronic devices

Special Issue Information

Dear Colleagues,

Halide perovskite materials (HPMs) have been proven to be superior semiconductor materials owing to their extraordinary optical and optoelectronic properties, including high light absorptivity, long diffusion length, and large carrier mobility. Benefiting from these fascinating features, HPMs demonstrate vast potential in various optoelectronic fields, such as in solar cells, light-emitting diodes, photodetectors, and memories. Recently, explosive progress in HPM research has made them competitive with traditional semiconductor materials. For instance, the power conversation efficiency (PCE) of perovskites reaches 23.3% within several years, which is comparative to commercial Si-based solar cells. This outstanding optoelectronic performance is truly attractive; however, stability issues have become a crucial and hot topic for commercial applications. Fortunately, a series of strategies have emerged to improve the stability and efficiency of the devices, such as controlling the dimension of the materials, adjusting the treating processes, and optimizing the device structures.

Inspired by the achievements and enormous potential of HPMs for future optoelectronic applications, increasing research activities are devoted to several important methods, such as the design and synthesis of perovskite materials, and the construction of devices. In this Special Issue, we aim to highlight the state-of-the-art in the field and provide an overview of recent progress, including component and low-dimensional perovskites, device structures, and novel optoelectronic devices, all of which hold great promise in material science, engineering, optoelectronic, and nanotechnology.

Prof. Haibo Zeng
Prof. Shin-Tson Wu
Prof. Yajie Dong
Prof. Jizhong Song
Guest Editors

Keywords

  • novel perovskites
  • low-dimensional perovskites
  • solar cells
  • light-emitting diodes
  • photodetectors
  • stability

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Published Papers (7 papers)

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Research

14 pages, 4090 KiB  
Article
Effects of Transition Metal Substituents on Interfacial and Electronic Structure of CH3NH3PbI3/TiO2 Interface: A First-Principles Comparative Study
by Yao Guo, Yuanbin Xue, Xianchang Li, Chengbo Li, Haixiang Song, Yongsheng Niu, Hu Liu, Xianmin Mai, Jiaoxia Zhang and Zhanhu Guo
Nanomaterials 2019, 9(7), 966; https://doi.org/10.3390/nano9070966 - 1 Jul 2019
Cited by 17 | Viewed by 3068
Abstract
To evaluate the influence of transition metal substituents on the characteristics of CH3NH3PbI3/TiO2, we investigated the geometrical and electronic properties of transition metal-substituted CH3NH3PbI3/TiO2 by first-principles calculations. The [...] Read more.
To evaluate the influence of transition metal substituents on the characteristics of CH3NH3PbI3/TiO2, we investigated the geometrical and electronic properties of transition metal-substituted CH3NH3PbI3/TiO2 by first-principles calculations. The results suggested that the substitution of Ti4+ at the five-fold coordinated (Ti5c) sites by transition metals is energetically favored. The substituted interface has enhanced visible light sensitivity and photoelectrocatalytic activity by reducing the transition energies. The transition metal substitution can effectively tune the band gap of the interface, which significantly improves the photo-reactivity. The substituted systems are expected to be more efficient in separating the photo-generated electrons-holes and active in the visible spectrum. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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12 pages, 10637 KiB  
Article
Rheological Tunability of Perovskite Precursor Solutions: From Spin Coating to Inkjet Printing Process
by Antonella Giuri, Ehab Saleh, Andrea Listorti, Silvia Colella, Aurora Rizzo, Christopher Tuck and Carola Esposito Corcione
Nanomaterials 2019, 9(4), 582; https://doi.org/10.3390/nano9040582 - 9 Apr 2019
Cited by 34 | Viewed by 4783
Abstract
The high efficiencies (>22%) reached by perovskite-based optoelectronic devices in a very short period, demonstrates the great potential and tunability of this material. The current challenge lies in translating such efficiencies to commercially feasible forms produced through industrial fabrication methods. Herein, a novel [...] Read more.
The high efficiencies (>22%) reached by perovskite-based optoelectronic devices in a very short period, demonstrates the great potential and tunability of this material. The current challenge lies in translating such efficiencies to commercially feasible forms produced through industrial fabrication methods. Herein, a novel first step towards the processability of starch-perovskite inks, developed in our previous work, is investigated, by using inkjet printing technology. The tunability of the viscosity of the starch-perovskite-based inks allows the selection of suitable concentrations to be used as printable inks. After exploration of several printing parameters, thick and opaque starch-perovskite nanocomposite films were obtained, showing interesting morphological and optical properties. The results obtained in this work underline the potential and versatility of our approach, opening the possibility to explore and optimize, in the future, further large-scale deposition methods towards fully printed and stable perovskite devices. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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14 pages, 3298 KiB  
Article
Understanding the Impact of Cu-In-Ga-S Nanoparticles Compactness on Holes Transfer of Perovskite Solar Cells
by Dandan Zhao, Yinghui Wu, Bao Tu, Guichuan Xing, Haifeng Li and Zhubing He
Nanomaterials 2019, 9(2), 286; https://doi.org/10.3390/nano9020286 - 18 Feb 2019
Cited by 11 | Viewed by 4732
Abstract
Although a compact holes-transport-layer (HTL) film has always been deemed mandatory for perovskite solar cells (PSCs), the impact their compactness on the device performance has rarely been studied in detail. In this work, based on a device structure of FTO/CIGS/perovskite/PCBM/ZrAcac/Ag, that effect was [...] Read more.
Although a compact holes-transport-layer (HTL) film has always been deemed mandatory for perovskite solar cells (PSCs), the impact their compactness on the device performance has rarely been studied in detail. In this work, based on a device structure of FTO/CIGS/perovskite/PCBM/ZrAcac/Ag, that effect was systematically investigated with respect to device performance along with photo-physics characterization tools. Depending on spin-coating speed, the grain size and coverage ratio of those CIGS films on FTO substrates can be tuned, and this can result in different hole transfer efficiencies at the anode interface. At a speed of 4000 r.p.m., the band level offset between the perovskite and CIGS modified FTO was reduced to a minimum of 0.02 eV, leading to the best device performance, with conversion efficiency of 15.16% and open-circuit voltage of 1.04 V, along with the suppression of hysteresis. We believe that the balance of grain size and coverage ratio of CIGS interlayers can be tuned to an optimal point in the competition between carrier transport and recombination at the interface based on the proposed mechanism. This paper definitely deepens our understanding of the hole transfer mechanism at the interface of PSC devices, and facilitates future design of high-performance devices. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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9 pages, 1304 KiB  
Article
Improved Efficiency of Perovskite Solar Cells by the Interfacial Modification of the Active Layer
by Zhen Lu, Shangzhi Wang, Huijun Liu, Feng Feng and Wenhua Li
Nanomaterials 2019, 9(2), 204; https://doi.org/10.3390/nano9020204 - 5 Feb 2019
Cited by 12 | Viewed by 4043
Abstract
As the most promising material for thin-film solar cells nowadays, perovskite shine for its unique optical and electronic properties. Perovskite-based solar cells have already been demonstrated with high efficiencies. However, it is still very challenging to optimize the morphology of perovskite film. In [...] Read more.
As the most promising material for thin-film solar cells nowadays, perovskite shine for its unique optical and electronic properties. Perovskite-based solar cells have already been demonstrated with high efficiencies. However, it is still very challenging to optimize the morphology of perovskite film. In this paper we proposed a smooth and continuous perovskite active layer by treating the poly (3, 4-ethylenedioxythiophene): poly (styrenesulphonate) (PEDOT:PSS) with pre-perovskite deposition and dimethylsulfoxide (DMSO) rinse. The scanning electron microscope (SEM) and atomic force microscope (AFM) images confirmed a perovskite active layer consisting of large crystal grains with less grain boundary area and enhanced crystallinity. The perovskite devices fabricated by this method feature a high power conversion efficiency (PCE) of 11.36% and a short-circuit current (Jsc) of 21.9 mA·cm−2. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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13 pages, 5282 KiB  
Article
Perovskite Downconverters for Efficient, Excellent Color-Rendering, and Circadian Solid-State Lighting
by Ziqian He, Caicai Zhang, Hao Chen, Yajie Dong and Shin-Tson Wu
Nanomaterials 2019, 9(2), 176; https://doi.org/10.3390/nano9020176 - 1 Feb 2019
Cited by 29 | Viewed by 3666
Abstract
Advances in materials, color rendering metrics and studies on biological effects promote the design for novel solid-state lighting sources that are highly energy efficient, excellent at color rendering and healthy for human circadian rhythms. Recently, perovskite nanocrystals have emerged as narrow-band, low-cost, color-tunable [...] Read more.
Advances in materials, color rendering metrics and studies on biological effects promote the design for novel solid-state lighting sources that are highly energy efficient, excellent at color rendering and healthy for human circadian rhythms. Recently, perovskite nanocrystals have emerged as narrow-band, low-cost, color-tunable downconverters, elevating the design and development of solid-state lighting to a new level. Here, we perform a systematic optimization of using perovskite nanocrystals as downconverters to simultaneously optimize vision energy efficiency, color rendering quality and circadian action effect of lighting sources at both fixed and tunable color temperatures. Further analysis reveals the inherent differences in central wavelength and bandwidth preferences for different cases, providing a general guideline for designing circadian lighting. Through systematic optimization, highly efficient circadian lighting sources with excellent color rendering can be achieved. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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8 pages, 5854 KiB  
Article
Enhanced Efficiency of MAPbI3 Perovskite Solar Cells with FAPbX3 Perovskite Quantum Dots
by Lung-Chien Chen, Ching-Ho Tien, Zong-Liang Tseng and Jun-Hao Ruan
Nanomaterials 2019, 9(1), 121; https://doi.org/10.3390/nano9010121 - 19 Jan 2019
Cited by 32 | Viewed by 9254
Abstract
We describe a method to enhance power conversion efficiency (PCE) of MAPbI3 perovskite solar cell by inserting a FAPbX3 perovskite quantum dots (QD-FAPbX3) layer. The MAPbI3 and QD-FAPbX3 layers were prepared using a simple, rapid spin-coating method [...] Read more.
We describe a method to enhance power conversion efficiency (PCE) of MAPbI3 perovskite solar cell by inserting a FAPbX3 perovskite quantum dots (QD-FAPbX3) layer. The MAPbI3 and QD-FAPbX3 layers were prepared using a simple, rapid spin-coating method in a nitrogen-filled glove box. The solar cell structure consists of ITO/PEDOT:PSS/MAPbI3/QD-FAPbX3/C60/Ag, where PEDOT:PSS, MAPbI3, QD-FAPbX3, and C60 were used as the hole transport layer, light-absorbing layer, absorption enhance layer, and electron transport layer, respectively. The MAPbI3/QD-FAPbX3 solar cells exhibit a PCE of 7.59%, an open circuit voltage (Voc) of 0.9 V, a short-circuit current density (Jsc) of 17.4 mA/cm2, and a fill factor (FF) of 48.6%, respectively. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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12 pages, 3856 KiB  
Article
Light Trapping Effect in Perovskite Solar Cells by the Addition of Ag Nanoparticles, Using Textured Substrates
by Jiabin Hao, Huiying Hao, Jianfeng Li, Lei Shi, Tingting Zhong, Chen Zhang, Jingjing Dong, Jie Xing, Hao Liu and Zili Zhang
Nanomaterials 2018, 8(10), 815; https://doi.org/10.3390/nano8100815 - 10 Oct 2018
Cited by 23 | Viewed by 4530
Abstract
In this contribution, the efficiencies of perovskite solar cells have been further enhanced, based on optical optimization studies. The photovoltaic devices with textured perovskite film can be obtained and a power conversion efficiency (PCE) of the textured fluorine-doped tin oxide (FTO)/Ag nanoparticles (NPs) [...] Read more.
In this contribution, the efficiencies of perovskite solar cells have been further enhanced, based on optical optimization studies. The photovoltaic devices with textured perovskite film can be obtained and a power conversion efficiency (PCE) of the textured fluorine-doped tin oxide (FTO)/Ag nanoparticles (NPs) embedded in c-TiO2/m-TiO2/CH3NH3PbI3/Spiro-OMeTAD/Au showed 33.7% enhancement, and a maximum of up to 14.01% was achieved. The efficiency enhancement can be attributed to the light trapping effect caused by the textured FTO and the incorporated Ag NPs, which can enhance scattering to extend the optical pathway in the photoactive layer of the solar cell. Interestingly, aside from enhanced light absorption, the charge transport characteristics of the devices can be improved by optimizing Ag NPs loading levels, which is due to the localized surface plasmon resonance (LSPR) from the incorporated Ag NPs. This light trapping strategy helps to provide an appropriated management for optical optimization of perovskite solar cells. Full article
(This article belongs to the Special Issue Perovskite Materials and Devices–– Progress and Challenges)
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