Perovskite Nanostructures in Solar Cells: Opportunities and Challenges

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Solar Energy and Solar Cells".

Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 5954

Special Issue Editor


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Guest Editor
State Key Laboratory of Luminescence and Applications Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Dong Nanhu Road, Changchun 130033, China
Interests: perovskite photovoltaics; perovskite light-emitting diodes; transparent electrodes; flexible photoelectric devices

Special Issue Information

Dear Colleagues,

Perovskite solar cells as the third generation of thin film solar cells have outstanding advantages such as high photoelectric conversion efficiency, flexible preparation and low cost, which is expected to cross the threshold of commercialization, and then share and even overturn the photovoltaic market dominated by silicon solar cells, and reduce environmental pollution and global greenhouse effect more effectively.

The research direction of perovskite solar cells mainly focuses on the optimization of perovskite materials, interface regulation, improvement of the preparation process of perovskite solar cells, new materials and new device structures. The main research direction in the future is to improve the efficiency and stability of the perovskite solar cells, find low-cost and efficient light absorption layer, further simplify the structure of the perovskite solar cells, improve the encapsulation process, and realize the preparation of large-area module. In addition, lead-free materials and flexible perovskite batteries are also hot research directions in the future.

This Special Issue of Nanomaterials will attempt to cover the most recent studies in perovskite nanostructures in solar cells, including perovskite material preparation, morphology and interface control, defect suppression and device optimization, etc. This Special Issue aims to promote the steady improvement of the efficiency and stability of perovskite solar cells, strengthen the development of perovskite solar cells with low-cost preparation technology and high energy conversion efficiency, and make them become the mainstream products of the new generation of the low-cost green energy industry.

Dr. Xiaoyang Guo
Guest Editor

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Keywords

  • perovskite photovoltaics
  • morphology
  • nanostructures
  • energy conversion efficiency
  • crystal growth
  • defects suppression

Published Papers (3 papers)

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Research

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18 pages, 4402 KiB  
Article
Development of Perovskite (MACl)0.33FA0.99MA0.01Pb(I0.99Br0.01)3 Solar Cells via n-Octylammonium Iodide Surface Passivation
by M. M. Osman, A. M. El-naggar, A. Q. Alanazi, A. M. Aldhafiri and A. A. Albassam
Nanomaterials 2023, 13(9), 1492; https://doi.org/10.3390/nano13091492 - 27 Apr 2023
Viewed by 1525
Abstract
The influence of n-octylammonium iodide (OAI, passive layer) on the types of phases formed in a (MACl)0.33FA0.99MA0.01Pb(I0.99Br0.01)3 perovskite film was studied using X-ray diffraction. Using UV spectrophotometric techniques, it was determined how [...] Read more.
The influence of n-octylammonium iodide (OAI, passive layer) on the types of phases formed in a (MACl)0.33FA0.99MA0.01Pb(I0.99Br0.01)3 perovskite film was studied using X-ray diffraction. Using UV spectrophotometric techniques, it was determined how varied OAI additive layer ratios affected the linear and nonlinear optical characteristics of glass substrates/FTO/compact TiO2/mesoporous TiO2/(MACl)0.33FA0.99MA0.01Pb(I0.99Br0.01)3 films. All films’ direct optical bandgap energies were determined to be 1.54 eV. The effects of OAI addition on the films’ photoluminescence intensity and emitted colors were also investigated. For the fabricated perovskite solar cells (PSCs) without an OAI passivation layer, the corresponding power conversion efficiency (PCE), open-circuit voltage (VOC), short-circuit current density (JSC), and fill factor (FF) values were 18.8%, 1.02 V, 24.6 mAcm−2, and 75%, respectively. When the concentration of OAI reached 2 mg, the maximum obtained values of PCE, VOC, JSC, and FF were 20.2%, 1.06 V, 24.2 mAcm−2, and 79%, respectively. The decreased trap density and increased recombination resistance were responsible for the improvement in solar cell performance. Full article
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11 pages, 3405 KiB  
Article
Spectrally Stable Blue Light-Emitting Diodes Based on All-Inorganic Halide Perovskite Films
by Huidan Zhang, Ying Su, Xulan Xue, Qinghui Zeng, Yifang Sun, Kai Zhu, Weiguang Ye, Wenyu Ji and Xiangyang Leng
Nanomaterials 2022, 12(17), 2906; https://doi.org/10.3390/nano12172906 - 24 Aug 2022
Cited by 5 | Viewed by 1838
Abstract
Substantial progress has been made in perovskite light-emitting diodes (PeLEDs), but the fabrication of high-performance blue PeLEDs still remains a challenge due to its low efficiency, spectral instability and short operational lifetime. How to produce an efficient and stable blue PeLED is the [...] Read more.
Substantial progress has been made in perovskite light-emitting diodes (PeLEDs), but the fabrication of high-performance blue PeLEDs still remains a challenge due to its low efficiency, spectral instability and short operational lifetime. How to produce an efficient and stable blue PeLED is the key to realizing the application of PeLEDs in full-color displays. We herein report a blue PeLED usint the ligand-assisted reprecipitation method, in which phenylethylammonium bromide (PEABr) was used as ligands, and chloroform was used as anti-solvent to prepare blue perovskite nanocrystal films. By increasing the PEABr content from 40% to 100% (The ratio of x% PEABr refers to the molar ratio between PEABr and PbBr2), the film quality is highly improved, and the emission exhibits a blue shift. Introducing a poly(9-vinylcarbazole) (PVK) hole transport layer into the device, the PVK layer can not only achieve efficient hole injection, but can also isolate the PEDOT: PSS layer to inhibit the non-radiative recombination of metal halide luminescence layer, reduce surface ion defects and successfully inhibit halide atom migration. Finally, the PeLED presents a stable electroluminescence under different driving voltages without any red shift. Full article
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Review

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25 pages, 8882 KiB  
Review
All-Inorganic Perovskite Solar Cells: Recent Advancements and Challenges
by Ibrahim M. Maafa
Nanomaterials 2022, 12(10), 1651; https://doi.org/10.3390/nano12101651 - 12 May 2022
Cited by 22 | Viewed by 3975
Abstract
Organic–inorganic metal-halide-based hybrid perovskite solar cells (SCs) have attracted a great deal of attention from researchers around the globe with their certified power conversion efficiencies (PCEs) having now increased to 25.2%. Nevertheless, organic–inorganic hybrid halide perovskite SCs suffer the serious drawback of instability [...] Read more.
Organic–inorganic metal-halide-based hybrid perovskite solar cells (SCs) have attracted a great deal of attention from researchers around the globe with their certified power conversion efficiencies (PCEs) having now increased to 25.2%. Nevertheless, organic–inorganic hybrid halide perovskite SCs suffer the serious drawback of instability with respect to moisture and heat. However, all-inorganic perovskite SCs have emerged as promising candidates to tackle the thermal instability problem. Since the introduction of all-inorganic perovskite materials to the field of perovskite photovoltaics in 2014, a plethora of research articles has been published focusing on this research topic. The PCE of all-inorganic PSCs has climbed to a record 18.4% and research is underway to enhance this. In this review, I survey the gradual progress of all-inorganic perovskites, their material design, the fabrication of high-quality perovskite films, energetics, major challenges and schemes opening new horizons toward commercialization. Furthermore, techniques to stabilize cubically phased low-bandgap inorganic perovskites are highlighted, as this is an indispensable requirement for stable and highly efficient SCs. In addition, I explain the various energy loss mechanisms at the interface and in the bulk of perovskite and charge-selective layers, and recap previously published reports on the curtailment of charge-carrier recombination losses. Full article
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