1
|
Ashraf S, Su R, Akhtar J, Shuja A, Siddiqi HM, El-Shafei A. Molecular engineering of ruthenium-based photosensitizers with superior photovoltaic performance in DSSCs: novel N-alkyl 2-phenylindole-based ancillary ligands. NEW J CHEM 2022. [DOI: 10.1039/d1nj04362e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this work, we report the design and successful synthesis of two new heteroleptic polypyridyl Ru(ii) complexes (SD-5 and SD-6), by incorporating hetero-aromatic electron-donating N-alkyl-2-phenylindole moieties into the ancillary ligand.
Collapse
Affiliation(s)
- Saba Ashraf
- Polymer and Color Chemistry Program & Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC, 27606, USA
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
- Centre for Advanced Electronics and Photovoltaic Engineering (CAEPE), International Islamic University, Sector H-10, Islamabad, Pakistan
| | - Rui Su
- Polymer and Color Chemistry Program & Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC, 27606, USA
| | - Javeed Akhtar
- Materials Laboratory, Department of Chemistry, Mirpur University of Science and Technology (MUST), Mirpur 10250 (AJK), Pakistan
| | - Ahmed Shuja
- Centre for Advanced Electronics and Photovoltaic Engineering (CAEPE), International Islamic University, Sector H-10, Islamabad, Pakistan
| | - Humaira M. Siddiqi
- Department of Chemistry, Quaid-I-Azam University, Islamabad 45320, Pakistan
| | - Ahmed El-Shafei
- Polymer and Color Chemistry Program & Fiber and Polymer Science Program, North Carolina State University, Raleigh, NC, 27606, USA
| |
Collapse
|
2
|
Continuous high-efficient degradation of organic pollutants based on sea urchin-like Fe3O4/ZnO/ZnSe heterostructures in photocatalytic magnetically fixed bed reactor. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
3
|
Zhu T, Su J, Labat F, Ciofini I, Pauporté T. Interfacial Engineering through Chloride-Functionalized Self-Assembled Monolayers for High-Performance Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2020; 12:744-752. [PMID: 31813217 DOI: 10.1021/acsami.9b18034] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
The family of organic-inorganic hybrid perovskite (OIHPs) materials is one of the most promising for very high-efficiency photovoltaic solar cell application. In the present work, the effect of a series of self-assembled monolayers placed at the TiO2-perovskite junction, on the functioning of triple cation perovskite solar cells has been investigated. We show that employing 4-chlorobenzoic acid leads to the marked boosting of the solar cell performances. The starting pristine cell had a power conversion efficiency (PCE) of 20.3% and the chemical engineering permitted to reach a PCE up to 21.35%. Our experimental study completed by density functional theory calculations and modeling show that this progress is due to the reduction of interfacial states, to the improvement of the quality of the OIHP material and to the structural continuity between TiO2 and the OIHP. Especially, we demonstrate that the interfacial chemical interactions are important to consider in the design of highly efficient devices.
Collapse
|
4
|
Ulfa M, Wang P, Zhang J, Liu J, de Marcillac WD, Coolen L, Peralta S, Pauporté T. Charge Injection and Electrical Response in Low-Temperature SnO 2-Based Efficient Perovskite Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2018; 10:35118-35128. [PMID: 30229660 DOI: 10.1021/acsami.8b10979] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Defining low-temperature engineering protocols for efficient planar perovskite solar cell (PSC) preparation is important for fabrication simplification and low-cost production. In the present work, we have defined a low-temperature (123 °C) protocol for the preparation from a solution of SnO2 layers which are efficient for an application as an electron transporting layer (ETL) in PSCs. Thin, conformal, and transparent layers have been obtained. The related PSCs have shown best devices with a power conversion efficiency of 18.22% and low-hysteresis J- V curves (a hysteresis index of 6.7%). Charge injection has been thoroughly studied by photoluminescence decay measurements. The decay curves followed a biexponential function. The injection of holes into the spiro-OMeTAD layer was found very fast and is a no-limiting step. On the other side, the charge injection into the oxide ETLs depends on its structure and on the oxide. The time constant for the low-temperature SnO2 layers is close to that of the mesoporous benchmark layers with a fast (surface) and a slow (bulk) component at 11 and 129 ns with relative contributions calculated at 13% and 87%, respectively. The phenomena occurring at a longer time scale have been investigated by impedance spectroscopy. The SnO2 cell spectra showed no intermediate-frequency inductive loop. The very low frequency part of the spectra was characterized by the beginning of an arc of a circle at the origin of a very large resistance over a large applied potential range. This resistance, along with an intermediate-frequency resistance, has been assigned to a recombination resistance and explains the very large Voc achievable with SnO2 PSCs. The existence of a capacitance at the intermediate frequency with a noticeable low value at about 0.2 mF·cm-2 is linked with the low hysteresis of the devices.
Collapse
Affiliation(s)
- Maria Ulfa
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) , 11 rue P. et M. Curie , F-75005 Paris , France
| | - Pengjiu Wang
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) , 11 rue P. et M. Curie , F-75005 Paris , France
| | - Jie Zhang
- School of Chemistry and Chemical Engineering , South China University of Technology , Guangzhou 510640 , Guangdong , China
| | - Jiawen Liu
- Sorbonne Université, CNRS, Institut de NanoSciences de Paris, INSP , F-75005 Paris , France
| | | | - Laurent Coolen
- Sorbonne Université, CNRS, Institut de NanoSciences de Paris, INSP , F-75005 Paris , France
| | - Sébastien Peralta
- Laboratoire de Physico-chimie des Polymères et Interfaces (LPPI) , Université de Cergy-Pontoise , 5 mail Gay-Lussac . 95031 Cergy-Pontoise , France
| | - Thierry Pauporté
- Chimie ParisTech, PSL Research University, CNRS, Institut de Recherche de Chimie Paris (IRCP) , 11 rue P. et M. Curie , F-75005 Paris , France
| |
Collapse
|
5
|
Koussi-Daoud S, Planchat A, Renaud A, Pellegrin Y, Odobel F, Pauporté T. Solvent-Templated Electrodeposition of Mesoporous Nickel Oxide Layers for Solar Cell Applications. ChemElectroChem 2017. [DOI: 10.1002/celc.201700495] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sana Koussi-Daoud
- Chimie ParisTech, PSL Research University; CNRS, Institut de Recherche de Chimie Paris (IRCP); 11 rue P. et M. Curie F-75005 Paris France
| | - Aurélien Planchat
- Université LUNAM, Université de Nantes; CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR 6230; 2 rue de la Houssinière F-44322 Nantes cedex 03 France
| | - Adèle Renaud
- Institut des Matériaux Jean Rouxel (IMN); Université de Nantes, CNRS; 2 rue de la Houssinière F-44322 Nantes cedex 3 France
| | - Yann Pellegrin
- Université LUNAM, Université de Nantes; CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR 6230; 2 rue de la Houssinière F-44322 Nantes cedex 03 France
| | - Fabrice Odobel
- Université LUNAM, Université de Nantes; CNRS, Chimie et Interdisciplinarité: Synthèse, Analyse, Modélisation (CEISAM), UMR 6230; 2 rue de la Houssinière F-44322 Nantes cedex 03 France
| | - Thierry Pauporté
- Chimie ParisTech, PSL Research University; CNRS, Institut de Recherche de Chimie Paris (IRCP); 11 rue P. et M. Curie F-75005 Paris France
| |
Collapse
|
6
|
Koussi-Daoud S, Majerus O, Schaming D, Pauporté T. Electrodeposition of NiO Films and Inverse Opal Organized Layers from Polar Aprotic Solvent-Based Electrolyte. Electrochim Acta 2016. [DOI: 10.1016/j.electacta.2016.10.074] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Gao S, Fan RQ, Wang XM, Wei LG, Song Y, Du X, Xing K, Wang P, Yang YL. Thermally-induced single-crystal-to-single-crystal transformations from a 2D two-fold interpenetrating square lattice layer to a 3D four-fold interpenetrating diamond framework and its application in dye-sensitized solar cells. Phys Chem Chem Phys 2016; 18:19001-10. [PMID: 27356177 DOI: 10.1039/c6cp02530g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
In this work, a rare 2D → 3D single-crystal-to-single-crystal transformation (SCSC) is observed in metal-organic coordination complexes, which is triggered by thermal treatment. The 2D two-fold interpenetrating square lattice layer [Cd(IBA)2]n (1) is irreversibly converted into a 3D four-fold interpenetrating diamond framework {[Cd(IBA)2(H2O)]·2.5H2O}n (2) (HIBA = 4-(1H-imidazol-1-yl)benzoic acid). Consideration is given to these two complexes with different interpenetrating structures and dimensionality, and their influence on photovoltaic properties are studied. Encouraged by the UV-visible absorption and HOMO-LUMO energy states matched for sensitizing TiO2, the two complexes are employed in combination with N719 in dye-sensitized solar cells (DSSCs) to compensate absorption in the ultraviolet and blue-violet region, offset competitive visible light absorption of I3(-) and reducing charge the recombination of injected electrons. After co-sensitization with 1 and 2, the device co-sensitized by 1/N719 and 2/N719 to yield overall efficiencies of 7.82% and 8.39%, which are 19.94% and 28.68% higher than that of the device sensitized only by N719 (6.52%). Consequently, high dimensional interpenetrating complexes could serve as excellent co-sensitizers and have application in DSSCs.
Collapse
Affiliation(s)
- Song Gao
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin 150001, P. R. China.
| | | | | | | | | | | | | | | | | |
Collapse
|
8
|
|
9
|
Hosni M, Kusumawati Y, Farhat S, Jouini N, Ivansyah AL, Martoprawiro MA, Pauporté T. Ruthenium polypyridyl TG6 dye for the sensitization of nanoparticle and nanocrystallite spherical aggregate photoelectrodes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:1568-1577. [PMID: 25546020 DOI: 10.1021/am5068645] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A ruthenium polypyridyl dye containing a hexasulfanyl-styryl modified bipyridyl group as ancillary ligand, coded TG6, is investigated as a sensitizer for ZnO-based dye-sensitized solar cells (DSSCs). The advantages of this dye are a broad wavelength absorption spectrum, a large loading in ZnO photoelectrodes, a significantly larger extinction coefficient compared to more classical Ru-polypyridyl dyes, and the formation of less agglomerate in the pores of the ZnO layers. TG6 has been used to sensitize ZnO nanorod particle layers of high structural quality and ZnO layers made of submicrometer spheres composed of aggregated nanocrystallites and that develop an internal surface area. The latter are highly light-scattering in the visible wavelength region but more difficult to sensitize correctly. The TG6 dye has been compared with the metal-free D149 dye and has been shown more efficient for photoconversion. The best performances have been obtained by combining TG6 with the nanorod layer, the optimal power conversion efficiency being measured at 5.30% in that case. The cells have been investigated by impedance spectroscopy over a large applied voltage range. We especially show that the submicrometer sphere layers exhibit lower conductivity and lower charge collection efficiency as compared to the nanorod particle ones.
Collapse
Affiliation(s)
- M Hosni
- Institut de Recherche de Chimie-Paris, CNRS - Chimie ParisTech - PSL, UMR8247 , 11 rue Pierre et Marie Curie, 75005 Paris, France
| | | | | | | | | | | | | |
Collapse
|
10
|
Liu S, Tang ZR, Sun Y, Colmenares JC, Xu YJ. One-dimension-based spatially ordered architectures for solar energy conversion. Chem Soc Rev 2015; 44:5053-75. [DOI: 10.1039/c4cs00408f] [Citation(s) in RCA: 326] [Impact Index Per Article: 36.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The current status, future developments, and challenges of one-dimension-based spatially ordered architectures in solar energy conversion are discussed and elucidated.
Collapse
Affiliation(s)
- Siqi Liu
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Zi-Rong Tang
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| | - Yugang Sun
- Center for Nanoscale Materials
- Argonne National Laboratory
- Argonne
- USA
| | | | - Yi-Jun Xu
- State Key Laboratory of Photocatalysis on Energy and Environment
- College of Chemistry
- Fuzhou University
- Fuzhou
- P. R. China
| |
Collapse
|
11
|
Pusztai P, Tóth-Szeles E, Horváth D, Tóth Á, Kukovecz Á, Kónya Z. A simple method to control the formation of cerium phosphate architectures. CrystEngComm 2015. [DOI: 10.1039/c5ce01404b] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
12
|
|
13
|
de la Escosura-Muñiz A, Espinoza-Castañeda M, Merkoçi A. Protein and DNA Electrochemical Sensing Using Anodized Aluminum Oxide Nanochannel Arrays. NANOPOROUS ALUMINA 2015. [DOI: 10.1007/978-3-319-20334-8_9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
|
14
|
Wang M, Zai J, Wei X, Chen W, Liang N, Xu M, Qi R, Qian X. N-type hedgehog-like CuBi2O4 hierarchical microspheres: room temperature synthesis and their photoelectrochemical properties. CrystEngComm 2015. [DOI: 10.1039/c5ce00040h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
N-type hedgehog-like CuBi2O4 hierarchical microspheres are synthesized at room temperature and show an enhanced photoresponse to visible light, with enhanced light trapping properties derived from the omni-directionally grown nanorods.
Collapse
Affiliation(s)
- Min Wang
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Jiantao Zai
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Xiao Wei
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Wenlong Chen
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Na Liang
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Miao Xu
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Rongrong Qi
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| | - Xuefeng Qian
- Shanghai Electrochemical Energy Devices Research Center
- School of Chemistry and Chemical Engineering and State Key Laboratory of Metal Matrix Composites
- Shanghai Jiao Tong University
- Shanghai, PR China
| |
Collapse
|
15
|
Wijeratne K, Bandara J. Aspect-Ratio Dependent Electron Transport and Recombination in Dye-Sensitized Solar Cells fabricated with one-dimensional ZnO nanostructures. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.10.046] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
16
|
Chen TT, Chang IC, Tsai MC, Chang YC, Yang MH, Chen PC, Chiu HT, Lee CY. Size-controlled wurtzite zinc oxide spheres with the characteristics of visible absorption and Mie scattering. CrystEngComm 2014. [DOI: 10.1039/c3ce42370k] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Uniform ZnO spheres with tunable size exhibit superior visible absorption and scattering effects.
Collapse
Affiliation(s)
- Ting-Ting Chen
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 30013, Republic of China
| | - I-Chun Chang
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 30013, Republic of China
| | - Min-Chiao Tsai
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 30013, Republic of China
| | - Yi-Chun Chang
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010, Republic of China
| | - Min-Han Yang
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 30013, Republic of China
| | - Po-Chin Chen
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010, Republic of China
| | - Hsin-Tien Chiu
- Department of Applied Chemistry
- National Chiao Tung University
- Hsinchu 30010, Republic of China
| | - Chi-Young Lee
- Department of Materials Science and Engineering
- National Tsing Hua University
- Hsinchu 30013, Republic of China
| |
Collapse
|
17
|
Elias J, Utke I, Yoon S, Bechelany M, Weidenkaff A, Michler J, Philippe L. Electrochemical growth of ZnO nanowires on atomic layer deposition coated polystyrene sphere templates. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.04.168] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
18
|
Ji J, Zhou Z, Yang X, Zhang W, Sang S, Li P. One-dimensional nano-interconnection formation. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:3014-3029. [PMID: 23606447 DOI: 10.1002/smll.201201318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2012] [Revised: 11/01/2012] [Indexed: 06/02/2023]
Abstract
Interconnection of one-dimensional nanomaterials such as nanowires and carbon nanotubes with other parts or components is crucial for nanodevices to realize electrical contacts and mechanical fixings. Interconnection has been being gradually paid great attention since it is as significant as nanomaterials properties, and determines nanodevices performance in some cases. This paper provides an overview of recent progress on techniques that are commonly used for one-dimensional interconnection formation. In this review, these techniques could be categorized into two different types: two-step and one-step methods according to their established process. The two-step method is constituted by assembly and pinning processes, while the one-step method is a direct formation process of nano-interconnections. In both methods, the electrodeposition approach is illustrated in detail, and its potential mechanism is emphasized.
Collapse
Affiliation(s)
- Jianlong Ji
- MicroNano System Research Center, College of Information Engineering, Taiyuan University of Technology, Taiyuan, 030024, PR China
| | | | | | | | | | | |
Collapse
|
19
|
Kim DJ, Kim SJ, Roh DK, Kim JH. Synthesis of low-cost, rubbery amphiphilic comb-like copolymers and their use in the templated synthesis of mesoporous TiO2 films for solid-state dye-sensitized solar cells. Phys Chem Chem Phys 2013; 15:7345-53. [DOI: 10.1039/c3cp44308f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
20
|
Mali SS, Kim H, Patil PS, Hong CK. Chemically grown vertically aligned 1D ZnO nanorods with CdS coating for efficient quantum dot sensitized solar cells (QDSSC): a controlled synthesis route. Dalton Trans 2013; 42:16961-7. [DOI: 10.1039/c3dt51287h] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
21
|
Lupan O, Guérin V, Ghimpu L, Tiginyanu I, Pauporté T. Nanofibrous-like ZnO layers deposited by magnetron sputtering and their integration in dye-sensitized solar cells. Chem Phys Lett 2012. [DOI: 10.1016/j.cplett.2012.08.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|