201
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Maitani MM, Tanaka K, Shen Q, Toyoda T, Wada Y. Electron transport properties in dye-sensitized solar cells with {001} facet-dominant TiO 2 nanoparticles. Phys Chem Chem Phys 2017; 19:22129-22140. [PMID: 28795712 DOI: 10.1039/c7cp03593d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Dye-sensitized solar cells (DSSCs) with reactive {001} facet-dominant TiO2 have attracted a great deal of attention owing to their high solar cell performance, despite the origin and the variation of the results being controversial. Here, we report the characteristic charge transport properties of DSSCs composed of {001} and {101} facet-dominant TiO2 nanoparticles in order to explain the origin of solar cell performance. Based on transient photocurrent and photovoltage measurements and transient absorption spectroscopy, the energetics of TiO2 semiconductors and dye sensitizers are utilized to understand the electron diffusion, recombination, and injection kinetics to determine solar cell performance. Novel strategies to improve DSSC performance by utilizing the characteristics of {001} facet-dominant TiO2 nanoparticles are proposed, which are (1) enhancement of electron injection and (2) reduction of carrier recombination for JSC and VOC improvement, despite the drawback of slower electron diffusion in the mesoporous network of {001} facet-dominant TiO2.
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Affiliation(s)
- M M Maitani
- School of Chemical Science and Engineering, Tokyo Institute of Technology, Meguro, Tokyo 152-8552, Japan.
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202
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Kirner JT, Finke RG. Sensitization of Nanocrystalline Metal Oxides with a Phosphonate-Functionalized Perylene Diimide for Photoelectrochemical Water Oxidation with a CoO x Catalyst. ACS APPLIED MATERIALS & INTERFACES 2017; 9:27625-27637. [PMID: 28727440 DOI: 10.1021/acsami.7b05874] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A planar organic thin film composed of a perylene diimide dye (N,N'-bis(phosphonomethyl)-3,4,9,10-perylenediimide, PMPDI) with photoelectrochemically deposited cobalt oxide (CoOx) catalyst was previously shown to photoelectrochemically oxidize water (DOI: 10.1021/am405598w). Herein, the same PMPDI dye is studied for the sensitization of different nanostructured metal oxide (nano-MOx) films in a dye-sensitized photoelectrochemical cell architecture. Dye adsorption kinetics and saturation decreases in the order TiO2 > SnO2 ≫ WO3. Despite highest initial dye loading on TiO2 films, photocurrent with hydroquinone (H2Q) sacrificial reductant in pH 7 aqueous solution is much higher on SnO2 films, likely due to a higher driving force for charge injection into the more positive conduction band energy of SnO2. Dyeing conditions and SnO2 film thickness were subsequently optimized to achieve light-harvesting efficiency >99% at the λmax of the dye, and absorbed photon-to-current efficiency of 13% with H2Q, a 2-fold improvement over the previous thin-film architecture. A CoOx water-oxidation catalyst was photoelectrochemically deposited, allowing for photoelectrochemical water oxidation with a faradaic efficiency of 31 ± 7%, thus demonstrating the second example of a water-oxidizing, dye-sensitized photoelectrolysis cell composed entirely of earth-abundant materials. However, deposition of CoOx always results in lower photocurrent due to enhanced recombination between catalyst and photoinjected electrons in SnO2, as confirmed by open-circuit photovoltage measurements. Possible future studies to enhance photoanode performance are discussed, including alternative catalyst deposition strategies or structural derivatization of the perylene dye.
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Affiliation(s)
- Joel T Kirner
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
| | - Richard G Finke
- Department of Chemistry, Colorado State University , Fort Collins, Colorado 80523, United States
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203
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Ponseca CS, Chábera P, Uhlig J, Persson P, Sundström V. Ultrafast Electron Dynamics in Solar Energy Conversion. Chem Rev 2017; 117:10940-11024. [DOI: 10.1021/acs.chemrev.6b00807] [Citation(s) in RCA: 211] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Carlito S. Ponseca
- Division
of Chemical Physics, Chemical Center, and ‡Theoretical Chemistry Division,
Chemical Center, Lund University, Box 124, Lund SE-221 00, Sweden
| | - Pavel Chábera
- Division
of Chemical Physics, Chemical Center, and ‡Theoretical Chemistry Division,
Chemical Center, Lund University, Box 124, Lund SE-221 00, Sweden
| | - Jens Uhlig
- Division
of Chemical Physics, Chemical Center, and ‡Theoretical Chemistry Division,
Chemical Center, Lund University, Box 124, Lund SE-221 00, Sweden
| | - Petter Persson
- Division
of Chemical Physics, Chemical Center, and ‡Theoretical Chemistry Division,
Chemical Center, Lund University, Box 124, Lund SE-221 00, Sweden
| | - Villy Sundström
- Division
of Chemical Physics, Chemical Center, and ‡Theoretical Chemistry Division,
Chemical Center, Lund University, Box 124, Lund SE-221 00, Sweden
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204
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Chábera P, Liu Y, Prakash O, Thyrhaug E, Nahhas AE, Honarfar A, Essén S, Fredin LA, Harlang TCB, Kjær KS, Handrup K, Ericson F, Tatsuno H, Morgan K, Schnadt J, Häggström L, Ericsson T, Sobkowiak A, Lidin S, Huang P, Styring S, Uhlig J, Bendix J, Lomoth R, Sundström V, Persson P, Wärnmark K. A low-spin Fe(iii) complex with 100-ps ligand-to-metal charge transfer photoluminescence. Nature 2017; 543:695-699. [PMID: 28358064 DOI: 10.1038/nature21430] [Citation(s) in RCA: 244] [Impact Index Per Article: 34.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 01/23/2017] [Indexed: 12/15/2022]
Abstract
Transition-metal complexes are used as photosensitizers, in light-emitting diodes, for biosensing and in photocatalysis. A key feature in these applications is excitation from the ground state to a charge-transfer state; the long charge-transfer-state lifetimes typical for complexes of ruthenium and other precious metals are often essential to ensure high performance. There is much interest in replacing these scarce elements with Earth-abundant metals, with iron and copper being particularly attractive owing to their low cost and non-toxicity. But despite the exploration of innovative molecular designs, it remains a formidable scientific challenge to access Earth-abundant transition-metal complexes with long-lived charge-transfer excited states. No known iron complexes are considered photoluminescent at room temperature, and their rapid excited-state deactivation precludes their use as photosensitizers. Here we present the iron complex [Fe(btz)3]3+ (where btz is 3,3'-dimethyl-1,1'-bis(p-tolyl)-4,4'-bis(1,2,3-triazol-5-ylidene)), and show that the superior σ-donor and π-acceptor electron properties of the ligand stabilize the excited state sufficiently to realize a long charge-transfer lifetime of 100 picoseconds (ps) and room-temperature photoluminescence. This species is a low-spin Fe(iii) d5 complex, and emission occurs from a long-lived doublet ligand-to-metal charge-transfer (2LMCT) state that is rarely seen for transition-metal complexes. The absence of intersystem crossing, which often gives rise to large excited-state energy losses in transition-metal complexes, enables the observation of spin-allowed emission directly to the ground state and could be exploited as an increased driving force in photochemical reactions on surfaces. These findings suggest that appropriate design strategies can deliver new iron-based materials for use as light emitters and photosensitizers.
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Affiliation(s)
- Pavel Chábera
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Yizhu Liu
- Center for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Om Prakash
- Center for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Erling Thyrhaug
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Amal El Nahhas
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Alireza Honarfar
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Sofia Essén
- Center for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Lisa A Fredin
- Division of Theoretical Chemistry, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Tobias C B Harlang
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden.,Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Kasper S Kjær
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden.,Department of Physics, Technical University of Denmark, DK-2800 Kongens Lyngby, Denmark
| | - Karsten Handrup
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
| | - Fredric Ericson
- Division of Theoretical Chemistry, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Hideyuki Tatsuno
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Kelsey Morgan
- National Institute of Standards and Technology, Boulder, Colorado 80305, USA
| | - Joachim Schnadt
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, SE-221 00 Lund, Sweden
| | - Lennart Häggström
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Tore Ericsson
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Adam Sobkowiak
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 538, SE-751 21 Uppsala, Sweden
| | - Sven Lidin
- Center for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Ping Huang
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Stenbjörn Styring
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Jens Uhlig
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Jesper Bendix
- Department of Chemistry, University of Copenhagen, Universitetsparken 5, DK-2100 Copenhagen, Denmark
| | - Reiner Lomoth
- Department of Chemistry - Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Villy Sundström
- Division of Chemical Physics, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Petter Persson
- Division of Theoretical Chemistry, Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
| | - Kenneth Wärnmark
- Center for Analysis and Synthesis (CAS), Department of Chemistry, Lund University, Box 124, SE-22100 Lund, Sweden
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205
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O'Donnell RM, Grusenmeyer TA, Stewart DJ, Ensley TR, Shensky WM, Haley JE, Shi J. Photodriven Oxygen Removal via Chromophore-Mediated Singlet Oxygen Sensitization and Chemical Capture. Inorg Chem 2017; 56:9273-9280. [PMID: 28696103 DOI: 10.1021/acs.inorgchem.7b01226] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We report a general, photochemical method for the rapid deoxygenation of organic solvents and aqueous solutions via visible light excitation of transition metal chromophores (TMCs) in the presence of singlet oxygen scavenging substrates. Either 2,5-dimethylfuran or an amino acid (histidine or tryptophan methyl ester) was used as the substrate in conjunction with an iridium or ruthenium TMC in toluene, acetonitrile, or water. This behavior is described for solutions with chromophore concentrations that are pertinent for both luminescence and transient absorption spectroscopies. These results consistently produce TMC lifetimes comparable to those measured using traditional inert gas sparging and freeze-pump-thaw techniques. This method has the added benefits of providing long-term stability (days to months); economical preparation due to use of inexpensive, commercially available oxygen scrubbing substrates; and negligible size and weight footprints compared to traditional methods. Furthermore, attainment of dissolved [O2] < 50 μM makes this method relevant to any solution application requiring low dissolved oxygen concentration in solution, provided that the oxygenated substrate does not interfere with the intended chemical process.
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Affiliation(s)
- Ryan M O'Donnell
- U.S. Army Research Laboratory , 2800 Powder Mill Road, Adelphi, Maryland 20783-1138, United States
| | - Tod A Grusenmeyer
- Air Force Research Laboratory, Wright Patterson Air Force Base , Ohio 45433-7750, United States
| | - David J Stewart
- Air Force Research Laboratory, Wright Patterson Air Force Base , Ohio 45433-7750, United States.,General Dynamics Information Technology , 5100 Springfield Pike, Dayton, Ohio 45431, United States
| | - Trenton R Ensley
- U.S. Army Research Laboratory , 2800 Powder Mill Road, Adelphi, Maryland 20783-1138, United States
| | - William M Shensky
- U.S. Army Research Laboratory , 2800 Powder Mill Road, Adelphi, Maryland 20783-1138, United States
| | - Joy E Haley
- Air Force Research Laboratory, Wright Patterson Air Force Base , Ohio 45433-7750, United States
| | - Jianmin Shi
- U.S. Army Research Laboratory , 2800 Powder Mill Road, Adelphi, Maryland 20783-1138, United States
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206
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Jang HJ, Hopkins SL, Siegler MA, Bonnet S. Frontier orbitals of photosubstitutionally active ruthenium complexes: an experimental study of the spectator ligands' electronic properties influence on photoreactivity. Dalton Trans 2017; 46:9969-9980. [PMID: 28726891 DOI: 10.1039/c7dt01540b] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The synthesis and characterization of [Ru(tpy)(R2bpy)(L)](X)n complexes (tpy = 2,2':6',2''-terpyridine, R2bpy = 4,4'-dimethyl-2,2'-bipyridine (dmbpy), or 4,4'-bis(trifluoromethyl)-2,2'-bipyridine (tfmbpy), X = Cl- or PF6-, and n = 1 or 2) are described. The dmbpy and tfmbpy bidentate ligands allow for investigating the effects of electron-donating and electron-withdrawing ligands, respectively, on the frontier orbital energetics as well as the photoreactivity of these ruthenium polypyridyl complexes for five prototypical monodentate ligands L = Cl-, H2O, CH3CN, 2-(methylthio)ethanol (Hmte), or pyridine. According to spectroscopic and electrochemical studies, the dmbpy analogues displayed a singlet metal-to-ligand charge transfer (1MLCT) transition at higher energy than the tfmbpy analogues. The shift of the 1MLCT to higher energy results from the lowest unoccupied molecular orbital (LUMO) for the dmbpy analogues being tpy-based, whereas for the tfmbpy analogues orbital inversion occurs resulting in a tfmbpy-based LUMO. The energy level of the highest occupied molecular orbital (HOMO) was considerably affected by the nature of the monodentate ligand. Visible light irradiation of the complexes demonstrated that the tfmbpy analogue increased the rate and quantum yields of photosubstitution reactions, compared to the dmbpy analogue, suggesting that the electron-withdrawing substituents allowed better thermal accessibility of the triplet metal-centered (3MC) state from the photochemically generated triplet metal-to-ligand charge transfer (3MLCT) excited state. A correlation between the photolability of the monodentate ligands and the electrochemical reversibility of the metal-based oxidation is also reported.
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Affiliation(s)
- Hyo Jin Jang
- Leiden Institute of Chemistry, Leiden University, Einsteinweg 55, 2300 RA Leiden, The Netherlands.
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207
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Furugori S, Kobayashi A, Watanabe A, Yoshida M, Kato M. Impact of Photosensitizing Multilayered Structure on Ruthenium(II)-Dye-Sensitized TiO 2-Nanoparticle Photocatalysts. ACS OMEGA 2017; 2:3901-3912. [PMID: 31457696 PMCID: PMC6641294 DOI: 10.1021/acsomega.7b00566] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Accepted: 07/12/2017] [Indexed: 06/10/2023]
Abstract
To improve the efficiency of photoinduced charge separation on the surface of dye-sensitized TiO2 nanoparticles, we synthesized the Ru(II)-photosensitizer-immobilized, Pt-cocatalyst-loaded TiO2 nanoparticles RuCP 2 @Pt-TiO2, RuCP 2 -Zr-RuP 6 @Pt-TiO2, and RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2 (RuCP 2 = [Ru(bpy)2(mpbpy)]2-, RuP 4 = [Ru(bpy)(pbpy)2]6-, RuP 6 = [Ru(pbpy)3]10-, H4mpbpy = 2,2'-bipyridine-4,4'-bis(methanephosphonic acid), and H4pbpy = 2,2'-bipyridine-4,4'-bis(phosphonic acid)) using phosphonate linkers with bridging Zr4+ ions. X-ray fluorescence and ultraviolet-visible absorption spectra revealed that a layered molecular structure composed of Ru(II) photosensitizers and Zr4+ ions (i.e., RuCP 2 -Zr-RuP 6 and RuCP 2 -Zr-RuP 4 -Zr-RuP 6 ) was successfully formed on the surface of Pt-TiO2 nanoparticles, which increased the surface coverage from 0.113 nmol/cm2 for singly layered RuCP 2 @Pt-TiO2 to 0.330 nmol/cm2 for triply layered RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2. The photocatalytic H2 evolution activity of the doubly layered RuCP 2 -Zr-RuP 6 @Pt-TiO2 was three times higher than that of the singly layered RuCP 2 @Pt-TiO2, whereas the activity of triply layered RuCP 2 -Zr-RuP 4 -Zr-RuP 6 @Pt-TiO2 was less than half of that for RuCP 2 @Pt-TiO2. The photosensitizing efficiencies of these Ru(II)-photosensitizer-immobilized nanoparticles for the O2 evolution reaction catalyzed by the Co(II)-containing Prussian blue analogue [CoII(H2O)2]1.31[{CoIII(CN)6}0.63{PtII(CN)4}0.37] decreased as the number of Ru(II)-photosensitizing layers increased. Thus, crucial aspects of the energy- and electron-transfer mechanism for the photocatalytic H2 and O2 evolution reactions involve not only the Ru(II)-complex-TiO2 interface but also the multilayered structure of the Ru(II)-photosensitizers on the Pt-TiO2 surface.
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Affiliation(s)
- Sogo Furugori
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Atsushi Kobayashi
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
- Precursory
Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST), Kawaguchi, Saitama 332-0012, Japan
| | - Ayako Watanabe
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masaki Yoshida
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
| | - Masako Kato
- Department
of Chemistry, Faculty of Science, Hokkaido
University, North-10
West-8, Kita-ku, Sapporo 060-0810, Japan
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208
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Zhao CB, Tang ZH, Guo XH, Ge HG, Ma JQ, Wang WL. Modeling Photovoltaic Performances of BTBPD-PC61BM System via Density Functional Theory Calculations. CHINESE J CHEM PHYS 2017. [DOI: 10.1063/1674-0068/30/cjcp1702016] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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209
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Liyanage NP, Cheema H, Baumann AR, Zylstra AR, Delcamp JH. Effect of Donor Strength and Bulk on Thieno[3,4-b]-pyrazine-Based Panchromatic Dyes in Dye-Sensitized Solar Cells. CHEMSUSCHEM 2017; 10:2635-2641. [PMID: 28444717 DOI: 10.1002/cssc.201700546] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2017] [Indexed: 06/07/2023]
Abstract
Near-infrared-absorbing organic dyes are critically needed in dye-sensitized solar cells (DSCs). Thieno[3,4-b]pyrazine (TPz) based dyes can access the NIR spectral region and show power conversion efficiencies (PCEs) of up to 8.1 % with sunlight being converted at wavelengths up to 800 nm for 17.6 mA cm-2 of photocurrent in a co-sensitized DSC device. Precisely controlling dye excited-state energies is critical for good performances in NIR DSCs. Strategies to control TPz dye energetics with stronger donor groups and TPz substituent choice are evaluated here. Additionally, donor size influence versus dye loading on TPz dyes is analyzed with respect to the TiO2 surface protection designed to prevent recombination of electrons in TiO2 with the redox shuttle. Importantly, the dyes evaluated were demonstrated to work well with low Li+ concentration electrolytes, with iodine and cobalt redox shuttle systems, and efficiently as part of co-sensitized devices.
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Affiliation(s)
- Nalaka P Liyanage
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Hammad Cheema
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Alexandra R Baumann
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Alexa R Zylstra
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
| | - Jared H Delcamp
- Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA
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210
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Casarin L, Swords WB, Caramori S, Bignozzi CA, Meyer GJ. Rapid Static Sensitizer Regeneration Enabled by Ion Pairing. Inorg Chem 2017; 56:7324-7327. [PMID: 28605198 DOI: 10.1021/acs.inorgchem.7b00819] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An anionic CoII complex, [Co(TTT) (NCS)3]- (TTT = 4,4',4″-tri-tert-butyl-2,2':6',2″-terpyridine and NCS = isothiocyanate), was synthesized for use in dye-sensitized solar cells (DSSCs). The CoII complex was found to ion-pair with the hexacationic sensitizer [Ru(tmam)2(dcb)]6+ (tmam = 4,4'-bis(trimethylaminomethyl)-2,2'-bipyridine and dcb = 4,4'-(CO2H)2-2,2'-bipyridine) anchored to TiO2 thin films immersed in acetonitrile solution. Visible light excitation of the ion pairs resulted in excited-state injection followed by rapid static regeneration of the oxidized sensitizer (<10 ns). The static component to regeneration gave an ion-pair equilibrium constant of 6000 M-1. This value is an order of magnitude smaller than the equilibrium constant determined for [Ru(tmam)2(deeb)]6+ (deeb = 4,4'-(CO2Et)2-2,2'-bipyridine) dissolved in acetonitrile. DSSC studies employing [Co(TTT) (NCS)3]- or the cationic [Co(DTB)3]2+ (DTB = 4,4'-di-tert-butyl-2,2'-bipyridine) as redox mediators revealed a 3 fold photocurrent increase in the presence of the anionic cobalt complex. As the regeneration step was greatly enhanced through the formation of Coulombic ion pairs, both electron injection and regeneration were complete within 10 ns which is unprecedented for dye-sensitization. The results obtained reveal that ground-state ion-pairing can be a powerful strategy for DSSC optimization.
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Affiliation(s)
- Laura Casarin
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara , Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Wesley B Swords
- Department of Chemistry, The University of North Carolina at Chapel Hill , Murray Hall 2202B, Chapel Hill, North Carolina 27599-3290, United States
| | - Stefano Caramori
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara , Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Carlo A Bignozzi
- Department of Chemistry and Pharmaceutical Sciences, University of Ferrara , Via Fossato di Mortara 17, 44121 Ferrara, Italy
| | - Gerald J Meyer
- Department of Chemistry, The University of North Carolina at Chapel Hill , Murray Hall 2202B, Chapel Hill, North Carolina 27599-3290, United States
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211
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Manbeck GF, Fujita E, Brewer KJ. Tetra- and Heptametallic Ru(II),Rh(III) Supramolecular Hydrogen Production Photocatalysts. J Am Chem Soc 2017; 139:7843-7854. [DOI: 10.1021/jacs.7b02142] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Gerald F. Manbeck
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Etsuko Fujita
- Chemistry
Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Karen J. Brewer
- Department
of Chemistry, Virginia Tech, Blacksburg, Virginia 24061, United States
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212
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El alamy A, Bourass M, Amine A, Hamidi M, Bouachrine M. New organic dyes based on phenylenevinylene for solar cells: DFT and TD-DFT investigation. KARBALA INTERNATIONAL JOURNAL OF MODERN SCIENCE 2017. [DOI: 10.1016/j.kijoms.2017.03.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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213
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White W, Sanborn CD, Reiter RS, Fabian DM, Ardo S. Observation of Photovoltaic Action from Photoacid-Modified Nafion Due to Light-Driven Ion Transport. J Am Chem Soc 2017; 139:11726-11733. [DOI: 10.1021/jacs.7b00974] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- William White
- Department
of Chemistry and ‡Department of Chemical Engineering and Materials
Science, University of California Irvine, Irvine, California 92697 United States
| | - Christopher D. Sanborn
- Department
of Chemistry and ‡Department of Chemical Engineering and Materials
Science, University of California Irvine, Irvine, California 92697 United States
| | - Ronald S. Reiter
- Department
of Chemistry and ‡Department of Chemical Engineering and Materials
Science, University of California Irvine, Irvine, California 92697 United States
| | - David M. Fabian
- Department
of Chemistry and ‡Department of Chemical Engineering and Materials
Science, University of California Irvine, Irvine, California 92697 United States
| | - Shane Ardo
- Department
of Chemistry and ‡Department of Chemical Engineering and Materials
Science, University of California Irvine, Irvine, California 92697 United States
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214
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Shinde DV, Pyeon L, Pei M, Kim GW, Yang H, Park T. Enhanced Efficiency and Stability of an Aqueous Lead-Nitrate-Based Organometallic Perovskite Solar Cell. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14023-14030. [PMID: 28361530 DOI: 10.1021/acsami.7b01864] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
We investigate the stability of an active organometallic perovskite layer prepared from a two-step solution procedure, including spin coating of aqueous lead nitrate (Pb(NO3)2) as a Pb2+ source and sequential dipping into a methylammonium iodide (CH3NH3I) solution. The conversion of CH3NH3PbI3 from a uniform Pb(NO3)2 layer generates PbI2-free and large-grain perovskite crystallites owing to an intermediate ion-exchange reaction step, resulting in improved humidity resistance and, thereby, improved long-term stability with 93% of the initial power conversion efficiency (PCE) after a period of 20 days. The conventional fast-converted PbI2-dimethylformamide solution system leaves small amounts of intrinsic PbI2 residue on the resulting perovskite and MAPbI3 crystallites with uncontrollable sizes. This accelerates the generation of PbI2 and the decomposition of the perovskite layer, resulting in poor stability with less than 60% of the initial PCE after a period of 20 days.
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Affiliation(s)
- Dipak V Shinde
- Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 37673, Korea
| | - Limok Pyeon
- Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 37673, Korea
| | - Mingyuan Pei
- Department of Applied Organic Materials Engineering, Inha University , Incheon 22212, Korea
| | - Guan-Woo Kim
- Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 37673, Korea
| | - Hoichang Yang
- Department of Applied Organic Materials Engineering, Inha University , Incheon 22212, Korea
| | - Taiho Park
- Department of Chemical Engineering, Pohang University of Science and Technology , Pohang 37673, Korea
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215
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Li L, Wong JC, Kanai Y. Examining the Effect of Exchange-Correlation Approximations in First-Principles Dynamics Simulation of Interfacial Charge Transfer. J Chem Theory Comput 2017; 13:2634-2641. [DOI: 10.1021/acs.jctc.7b00183] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lesheng Li
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jian Cheng Wong
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Yosuke Kanai
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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216
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Waghmare MA, Naushad M, Alothman ZA, Ubale AU, Pathan HM. Zirconium oxide films: deposition techniques and their applications in dye-sensitized solar cells. J Solid State Electrochem 2017. [DOI: 10.1007/s10008-017-3565-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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217
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Ashley DC, Jakubikova E. Ironing out the photochemical and spin-crossover behavior of Fe(II) coordination compounds with computational chemistry. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.02.005] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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218
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Theoretical investigation effects of anchor groups on photovoltaic properties for the C217-based dye sensitizer. COMPUT THEOR CHEM 2017. [DOI: 10.1016/j.comptc.2017.02.027] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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219
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Chen KY, Du C, Patrick BO, Berlinguette CP. High-Voltage Dye-Sensitized Solar Cells Mediated by [Co(2,2'-bipyrimidine) 3] z. Inorg Chem 2017; 56:2383-2386. [PMID: 28218525 DOI: 10.1021/acs.inorgchem.7b00082] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The cobalt complex [Co(2,2'-bipyrimidine)3](PF6)2 (Co-bpm) was tested as a redox mediator in the dye-sensitized solar cell. The measured photovoltages for the cells were in excess of 1 V, which is approximately 3-fold greater than that measured for devices where [Co(2,2'-bipyridine)3](PF6)2 (Co-bpy) was used as the redox mediator under the same experimental conditions. The root cause of this voltage enhancement is the CoIII/CoII redox potential for Co-bpm being positively shifted by 0.50 V relative to the Co-bpy mediator. This result highlights how the number and position of the N atoms in aromatic ligands can have a profound effect on the measured photovoltage.
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Affiliation(s)
- Kitty Y Chen
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Chuan Du
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Brian O Patrick
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Curtis P Berlinguette
- Department of Chemistry, University of British Columbia , 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada.,Department of Chemical and Biological Engineering, University of British Columbia , 2360 East Mall, Vancouver, British Columbia V6T 1Z1, Canada
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220
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Zhang G, Kim C, Choi W. Poly(4-vinylphenol) as a new stable and metal-free sensitizer of titania for visible light photocatalysis through ligand-to-metal charge transfer process. Catal Today 2017. [DOI: 10.1016/j.cattod.2016.06.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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221
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Comparative spectroscopic approach for the dye loading optimization of sheet-like ZnO photoanodes for dye-sensitized solar cells. J Photochem Photobiol A Chem 2017. [DOI: 10.1016/j.jphotochem.2017.01.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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222
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Shen C, Kennedy AD, Donald WA, Torres AM, Price WS, Beves JE. Self-assembled supramolecular cages containing dinuclear ruthenium(II) polypyridyl complexes. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2016.12.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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223
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Chiykowski VA, Lam B, Du C, Berlinguette CP. On how electron density affects the redox stability of phenothiazine sensitizers on semiconducting surfaces. Chem Commun (Camb) 2017; 53:2547-2550. [PMID: 28154843 DOI: 10.1039/c6cc09992k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The stabilities of three organic dyes that differ only by two substituents (-OMe, -H and -Br) about the phenothiazine donor unit were evaluated when immobilized on a semiconductor surface. All three dyes delivered modest power conversion efficiencies (PCEs) in the dye-sensitized solar cell (DSSC), but maintained 75% of their initial PCE over 300 h of sustained simulated sunlight. Electron-donating substituents increased the stability of the phenothiazine radical unit created after light-induced charge injection into the semiconductor; however, this did not translate to higher DSSC stability, which appears to be more sensitive to the basicity of the anchoring group for this series.
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Affiliation(s)
- Valerie A Chiykowski
- Departments of Chemistry and Chemical & Biological Engineering, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Brian Lam
- Departments of Chemistry and Chemical & Biological Engineering, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Chuan Du
- Departments of Chemistry and Chemical & Biological Engineering, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
| | - Curtis P Berlinguette
- Departments of Chemistry and Chemical & Biological Engineering, The University of British Columbia, 2036 Main Mall, Vancouver, BC V6T 1Z1, Canada.
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224
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Gałyńska M, Persson P. Quantum chemical calculations of the structural influence on electronic properties in TiO2 nanocrystals. Mol Phys 2017. [DOI: 10.1080/00268976.2017.1281456] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Marta Gałyńska
- Theoretical Chemistry Division, Chemistry Department, Lund University, Lund, Sweden
| | - Petter Persson
- Theoretical Chemistry Division, Chemistry Department, Lund University, Lund, Sweden
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225
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Long R, Casanova D, Fang WH, Prezhdo OV. Donor–Acceptor Interaction Determines the Mechanism of Photoinduced Electron Injection from Graphene Quantum Dots into TiO2: π-Stacking Supersedes Covalent Bonding. J Am Chem Soc 2017; 139:2619-2629. [DOI: 10.1021/jacs.6b09598] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Run Long
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - David Casanova
- Kimika Fakultatea,
Euskal Herriko Unibertsitatea and Donostia International Physics Center, 20018 Donostia, Euskadi, Spain
- IKERBASQUE, Basque
Foundation for Science, 48013 Bilbao, Euskadi, Spain
| | - Wei-Hai Fang
- College of Chemistry, Key Laboratory of Theoretical & Computational Photochemistry of Ministry of Education, Beijing Normal University, Beijing, 100875, P. R. China
| | - Oleg V. Prezhdo
- Department
of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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226
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Black TiO 2 nanobelts/g-C 3N 4 nanosheets Laminated Heterojunctions with Efficient Visible-Light-Driven Photocatalytic Performance. Sci Rep 2017; 7:41978. [PMID: 28165021 PMCID: PMC5292731 DOI: 10.1038/srep41978] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Accepted: 12/28/2016] [Indexed: 12/21/2022] Open
Abstract
Black TiO2 nanobelts/g-C3N4 nanosheets laminated heterojunctions (b-TiO2/g-C3N4) as visible-light-driven photocatalysts are fabricated through a simple hydrothermal-calcination process and an in-situ solid-state chemical reduction approach, followed by the mild thermal treatment (350 °C) in argon atmosphere. The prepared samples are evidently investigated by X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, N2 adsorption, and UV-visible diffuse reflectance spectroscopy, respectively. The results show that special laminated heterojunctions are formed between black TiO2 nanobelts and g-C3N4 nanosheets, which favor the separation of photogenerated electron-hole pairs. Furthermore, the presence of Ti3+ and g-C3N4 greatly enhance the absorption of visible light. The resultant b-TiO2/g-C3N4 materials exhibit higher photocatalytic activity than that of g-C3N4, TiO2, b-TiO2 and TiO2/g-C3N4 for degradation of methyl orange (95%) and hydrogen evolution (555.8 μmol h-1 g-1) under visible light irradiation. The apparent reaction rate constant (k) of b-TiO2/g-C3N4 is ~9 times higher than that of pristine TiO2. Therefore, the high-efficient laminated heterojunction composites will have potential applications in fields of environment and energy.
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227
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Cheema H, Delcamp JH. Harnessing Photovoltage: Effects of Film Thickness, TiO 2 Nanoparticle Size, MgO and Surface Capping with DSCs. ACS APPLIED MATERIALS & INTERFACES 2017; 9:3050-3059. [PMID: 28026928 DOI: 10.1021/acsami.6b11456] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
High photovoltage dye-sensitized solar cells (DSCs) offer an exceptional opportunity to power electrocatalysts for the production of hydrogen from water and the reduction of CO2 to usable fuels with a relatively cost-effective, low-toxicity solar cell. Competitive recombination pathways such as electron transfer from TiO2 films to the redox shuttle or oxidized dye must be minimized to achieve the maximum possible photovoltage (Voc) from DSC devices. A high Voc of 882 mV was achieved with the iodide/triiodide redox shuttle and a ruthenium NCS-ligated dye, HD-2-mono, by utilizing a combined approach of (1) modulating the TiO2 surface area through film thickness and nanoparticle size selection, (2) addition of a MgO insulating layer, and (3) capping available TiO2 film surface sites post film sensitization with an F-SAM (fluorinated self-assembled monolayer) treatment. The exceptional Voc of 882 mV observed is the highest achieved for the popular NCS containing ruthenium sensitizers with >5% PCE and compares favorably to the 769 mV value observed under common device preparation conditions.
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Affiliation(s)
- Hammad Cheema
- Chemistry Department, University of Mississippi , 481 Coulter Hall, University, Mississippi 38677, United States
| | - Jared H Delcamp
- Chemistry Department, University of Mississippi , 481 Coulter Hall, University, Mississippi 38677, United States
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228
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Büldt LA, Guo X, Vogel R, Prescimone A, Wenger OS. A Tris(diisocyanide)chromium(0) Complex Is a Luminescent Analog of Fe(2,2'-Bipyridine) 32. J Am Chem Soc 2017; 139:985-992. [PMID: 28054486 DOI: 10.1021/jacs.6b11803] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A meta-terphenyl unit was substituted with an isocyanide group on each of its two terminal aryls to afford a bidentate chelating ligand (CNtBuAr3NC) that is able to stabilize chromium in its zerovalent oxidation state. The homoleptic Cr(CNtBuAr3NC)3 complex luminesces in solution at room temperature, and its excited-state lifetime (2.2 ns in deaerated THF at 20 °C) is nearly 2 orders of magnitude longer than the current record lifetime for isoelectronic Fe(II) complexes, which are of significant interest as earth-abundant sensitizers in dye-sensitized solar cells. Due to its chelating ligands, Cr(CNtBuAr3NC)3 is more robust than Cr(0) complexes with carbonyl or monodentate isocyanides, manifesting in comparatively slow photodegradation. In the presence of excess anthracene in solution, efficient energy transfer and subsequent triplet-triplet annihilation upconversion is observed. With an excited-state oxidation potential of -2.43 V vs Fc+/Fc, the Cr(0) complex is a very strong photoreductant. The findings presented herein are relevant for replacement of precious metals in dye-sensitized solar cells and in luminescent devices by earth-abundant elements.
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Affiliation(s)
- Laura A Büldt
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Xingwei Guo
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Raphael Vogel
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Alessandro Prescimone
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
| | - Oliver S Wenger
- Department of Chemistry, University of Basel , St. Johanns-Ring 19 and Spitalstrasse 51, 4056 Basel, Switzerland
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229
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Li Y, Wang J, Yuan Y, Zhang M, Dong X, Wang P. Correlating excited state and charge carrier dynamics with photovoltaic parameters of perylene dye sensitized solar cells: influences of an alkylated carbazole ancillary electron-donor. Phys Chem Chem Phys 2017; 19:2549-2556. [DOI: 10.1039/c6cp07916d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two perylene dyes characteristic of electron-donors phenanthrocarbazole (PC) and carbazyl functionalized PC are selected to study the complicated dynamics of excited states and charge carriers, which underlie the photovoltaic parameters of dye-sensitized solar cells (DSCs).
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Affiliation(s)
- Yang Li
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
- University of Chinese Academy of Sciences
| | - Junting Wang
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
- University of Chinese Academy of Sciences
| | - Yi Yuan
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
| | - Min Zhang
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Xiandui Dong
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- China
| | - Peng Wang
- Department of Chemistry
- Zhejiang University
- Hangzhou 310028
- China
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230
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Wu J, Lan Z, Lin J, Huang M, Huang Y, Fan L, Luo G, Lin Y, Xie Y, Wei Y. Counter electrodes in dye-sensitized solar cells. Chem Soc Rev 2017; 46:5975-6023. [DOI: 10.1039/c6cs00752j] [Citation(s) in RCA: 480] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This article panoramically reviews the counter electrodes in dye-sensitized solar cells, which is of great significance for the development of photovoltaic and photoelectric devices.
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231
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Wang Y, Wöll C. IR spectroscopic investigations of chemical and photochemical reactions on metal oxides: bridging the materials gap. Chem Soc Rev 2017; 46:1875-1932. [DOI: 10.1039/c6cs00914j] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this review, we highlight recent progress (2008–2016) in infrared reflection absorption spectroscopy (IRRAS) studies on oxide powders achieved by using different types of metal oxide single crystals as reference systems.
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Affiliation(s)
- Yuemin Wang
- Institute of Functional Interfaces
- Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
| | - Christof Wöll
- Institute of Functional Interfaces
- Karlsruhe Institute of Technology
- Eggenstein-Leopoldshafen
- Germany
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232
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Zhu QY, Dai J. Main group metal chalcogenidometalates with transition metal complexes of 1,10-phenanthroline and 2,2′-bipyridine. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.08.009] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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233
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Sinopoli A, Black FA, Wood CJ, Gibson EA, Elliott PIP. Investigation of a new bis(carboxylate)triazole-based anchoring ligand for dye solar cell chromophore complexes. Dalton Trans 2017; 46:1520-1530. [DOI: 10.1039/c6dt02905a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A novel anchoring ligand for dye-sensitised solar cell chromophoric complexes, 1-(2,2′-bipyrid-4-yl)-1,2,3-triazole-4,5-dicarboxylic acid (dctzbpy), is described.
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Affiliation(s)
| | - Fiona A. Black
- School of Chemistry
- Newcastle University
- Newcastle upon Tyne
- UK
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234
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Jiang Z, Ding D, Wang L, Zhang Y, Zan L. Interfacial effects of MnOx-loaded TiO2 with exposed {001} facets and its catalytic activity for the photoreduction of CO2. Catal Sci Technol 2017. [DOI: 10.1039/c7cy00729a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The percentage of the exposed facets affect the interface connection between the semiconductor and the cocatalysts, leading to different separation rates of carriers.
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Affiliation(s)
- Zhuo Jiang
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Deng Ding
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Linjuan Wang
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Youxiang Zhang
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Ling Zan
- College of Chemistry and Molecular Science
- Wuhan University
- Wuhan 430072
- P. R. China
- Suzhou Institute of Wuhan University
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235
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Calogero G, Citro I, Di Marco G, Caramori S, Casarin L, Bignozzi CA, Avó J, Jorge Parola A, Pina F. Electronic and charge transfer properties of bio-inspired flavylium ions for applications in TiO2-based dye-sensitized solar cells. Photochem Photobiol Sci 2017; 16:1400-1414. [DOI: 10.1039/c7pp00039a] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We present a complete study on four synthetic environmentally friendly flavylium salts employed as sensitizers for dye-sensitized solar cells (DSSCs).
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Affiliation(s)
| | - Ilaria Citro
- CNR-IPCF
- Istituto per i Processi Chimico-Fisici
- I-98158 Messina
- Italy
| | - Gaetano Di Marco
- CNR-IPCF
- Istituto per i Processi Chimico-Fisici
- I-98158 Messina
- Italy
| | - Stefano Caramori
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- 44121 Ferrara
- Italy
| | - Laura Casarin
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Università di Ferrara
- 44121 Ferrara
- Italy
| | | | - João Avó
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - A. Jorge Parola
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
| | - Fernando Pina
- LAQV-REQUIMTE
- Departamento de Química
- Faculdade de Ciências e Tecnologia
- Universidade NOVA de Lisboa
- 2829-516 Caparica
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236
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Oehrlein AN, Sanchez-Diaz A, Goff PC, Ziegler GM, Pappenfus TM, Mann KR, Blank DA, Gladfelter WL. Effects of a phosphonate anchoring group on the excited state electron transfer rates from a terthiophene chromophore to a ZnO nanocrystal. Phys Chem Chem Phys 2017; 19:24294-24303. [DOI: 10.1039/c7cp03784h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Relative to carboxyl-anchored chromophores, phosphonate-anchored dyes are bound more strongly but slow the excited state electron transfer to ZnO nanocrystals.
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Affiliation(s)
- Amanda N. Oehrlein
- Department of Chemistry
- University of Minnesota-Twin Cities
- Minneapolis
- USA
| | | | - Philip C. Goff
- Department of Chemistry
- University of Minnesota-Twin Cities
- Minneapolis
- USA
| | | | - Ted M. Pappenfus
- Division of Science and Mathematics
- University of Minnesota-Morris
- Morris
- USA
| | - Kent R. Mann
- Department of Chemistry
- University of Minnesota-Twin Cities
- Minneapolis
- USA
| | - David A. Blank
- Department of Chemistry
- University of Minnesota-Twin Cities
- Minneapolis
- USA
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237
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Siu CH, Lee LTL, Ho PY, Ho CL, Chen T, Suramitr S, Hannongbua S, Xie Z, Wei M, Wong WY. Bis(phenothiazyl-ethynylene)-Based Organic Dyes Containing Di-Anchoring Groups with Efficiency Comparable to N719 for Dye-Sensitized Solar Cells. Chem Asian J 2016; 12:332-340. [DOI: 10.1002/asia.201601427] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Revised: 11/25/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Chi-Ho Siu
- Institute of Molecular Functional Materials; Department of Chemistry and Institute of Advanced Materials; Hong Kong Baptist University; Waterloo Road, Kowloon Tong Hong Kong P.R. China
| | - Lawrence Tien Lin Lee
- Department of Physics; The Chinese University of Hong Kong, Shatin; Hong Kong P.R. China
| | - Po-Yu Ho
- Institute of Molecular Functional Materials; Department of Chemistry and Institute of Advanced Materials; Hong Kong Baptist University; Waterloo Road, Kowloon Tong Hong Kong P.R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park; Shenzhen 518057 P.R. China
| | - Cheuk-Lam Ho
- Institute of Molecular Functional Materials; Department of Chemistry and Institute of Advanced Materials; Hong Kong Baptist University; Waterloo Road, Kowloon Tong Hong Kong P.R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park; Shenzhen 518057 P.R. China
| | - Tao Chen
- Department of Physics; The Chinese University of Hong Kong, Shatin; Hong Kong P.R. China
- Department of Materials Science and Engineering; University of Science and Technology of China; 96 Jinzhai Road Hefei Anhui 230026 P.R. China
| | - Songwut Suramitr
- Department of Chemistry and Faculty of Science; Center of Nanotechnology; Kasetsart University, Chatuchak; Bangkok 10900 Thailand
| | - Supa Hannongbua
- Department of Chemistry and Faculty of Science; Center of Nanotechnology; Kasetsart University, Chatuchak; Bangkok 10900 Thailand
| | - Zhiyuan Xie
- State Key Laboratory of Polymer Physics and Chemistry; Changchun Institute of Applied Chemistry; 5625 Renmin Street Changchun 130022 P.R. China
| | - Mingdeng Wei
- Institute of Advanced Energy Materials; Fuzhou University; Fuzhou Fujian 350002 P.R. China
| | - Wai-Yeung Wong
- Institute of Molecular Functional Materials; Department of Chemistry and Institute of Advanced Materials; Hong Kong Baptist University; Waterloo Road, Kowloon Tong Hong Kong P.R. China
- Department of Applied Biology and Chemical Technology; The Hong Kong Polytechnic University, Hung Hom; Hong Kong P.R. China
- HKBU Institute of Research and Continuing Education, Shenzhen Virtual University Park; Shenzhen 518057 P.R. China
- Institute of Advanced Energy Materials; Fuzhou University; Fuzhou Fujian 350002 P.R. China
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238
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Gish MK, Lapides AM, Brennaman MK, Templeton JL, Meyer TJ, Papanikolas JM. Ultrafast Recombination Dynamics in Dye-Sensitized SnO 2/TiO 2 Core/Shell Films. J Phys Chem Lett 2016; 7:5297-5301. [PMID: 27973875 DOI: 10.1021/acs.jpclett.6b02388] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Interfacial dynamics are investigated in SnO2/TiO2 core/shell films derivatized with a Ru(II)-polypyridyl chromophore ([RuII(bpy)2(4,4'-(PO3H2)2bpy)]2+, RuP) using transient absorption methods. Electron injection from the chromophore into the TiO2 shell occurs within a few picoseconds after photoexcitation. Loss of the oxidized dye through recombination occurs across time scales spanning 10 orders of magnitude. The majority (60%) of charge recombination events occur shortly after injection (τ = 220 ps), while a small fraction (≤20%) of the oxidized chromophores persists for milliseconds. The lifetime of long-lived charge-separated states (CSS) depends exponentially on shell thickness, suggesting that the injected electrons reside in the SnO2 core and must tunnel through the TiO2 shell to recombine with oxidized dyes. While the core/shell architecture extends the lifetime in a small fraction of the CSS, making water oxidation possible, the subnanosecond recombination process has profound implications for the overall efficiencies of dye-sensitized photoelectrosynthesis cells (DSPECs).
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Affiliation(s)
- Melissa K Gish
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Alexander M Lapides
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - M Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Joseph L Templeton
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
| | - John M Papanikolas
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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239
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Wang YC, Li SS, Wen CY, Chen LY, Ho KC, Chen CW. Dual Functional Polymer Interlayer for Facilitating Ion Transport and Reducing Charge Recombination in Dye-Sensitized Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2016; 8:33666-33672. [PMID: 27960364 DOI: 10.1021/acsami.6b11658] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Dye-sensitized solar cells (DSSCs) present low-cost alternatives to conventional wafer-based inorganic solar cells and have remarkable power conversion efficiency. To further enhance performance, we propose a new DSSC architecture with a novel dual-functional polymer interlayer that prevents charge recombination and facilitates ionic conduction, as well as maintaining dye loading and regeneration. Poly(vinylidene fluoride-trifluoroethylene) (p(VDF-TrFE)) was coated on the outside of a dye-sensitized TiO2 photoanode by a simple solution process that did not sacrifice the amount of adsorbed dye molecules in the DSSC device. Light-intensity-modulated photocurrent and photovoltage spectroscopy revealed that the proposed p(VDF-TrFE)-coated anode yielded longer electron lifetime and improved the injection of photogenerated electrons into TiO2, thereby reducing the electron transport time. Comparative cyclic voltammetry and UV-visible absorption spectroscopy based on a ferrocene-ferrocenium external standard material demonstrated that p(VDF-TrFE) enhanced the power conversion efficiency from 7.67% to 9.11%. This dual functional p(VDF-TrFE) interlayer is a promising candidate for improving the performance of DSSCs and can also be employed in other electrochemical devices.
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Affiliation(s)
| | | | | | - Liang-Yih Chen
- Department of Chemical Engineering, National Taiwan University of Science and Technology , Taipei 10617, Taiwan
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240
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Freitag M, Yang W, Fredin LA, D’Amario L, Karlsson KM, Hagfeldt A, Boschloo G. Supramolecular Hemicage Cobalt Mediators for Dye-Sensitized Solar Cells. Chemphyschem 2016; 17:3845-3852. [PMID: 27662628 PMCID: PMC5305181 DOI: 10.1002/cphc.201600985] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2016] [Indexed: 12/26/2022]
Abstract
A new class of dye-sensitized solar cells (DSSCs) using the hemicage cobalt-based mediator [Co(ttb)]2+/3+ with the highly preorganized hexadentate ligand 5,5'',5''''-((2,4,6-triethyl benzene-1,3,5-triyl)tris(ethane-2,1-diyl))tri-2,2'-bipyridine (ttb) has been fully investigated. The performances of DSSCs sensitized with organic D-π-A dyes utilizing either [Co(ttb)]2+/3+ or the conventional [Co(bpy)3 ]2+/3+ (bpy=2,2'-bipyridine) redox mediator are comparable under 1000 W m-2 AM 1.5 G illumination. However, the hemicage complexes exhibit exceptional stability under thermal and light stress. In particular, a 120-hour continuous light illumination stability test for DSSCs using [Co(ttb)]2+/3+ resulted in a 10 % increase in the performance, whereas a 40 % decrease in performance was found for [Co(bpy)3 ]2+/3+ electrolyte-based DSSCs under the same conditions. These results demonstrate the great promise of [Co(ttb)]2+/3+ complexes as redox mediators for efficient, cost-effective, large-scale DSSC devices.
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Affiliation(s)
- Marina Freitag
- Department of Chemistry – Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Wenxing Yang
- Department of Chemistry – Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Lisa A. Fredin
- Chemical Informatics Research Group, Chemical Science Division, Material Measurement Laboratory, National Institute of Standards and Technology, 100 Bureau Drive, Stop 8320, Gaithersburg, Maryland, 20899-8320, USA
| | - Luca D’Amario
- Department of Chemistry – Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - K. Martin Karlsson
- Center of Molecular Devices, Royal Institute of Technology, Teknikringen 30, 10044 Stockholm, Sweden
| | - Anders Hagfeldt
- Department of Chemistry – Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
| | - Gerrit Boschloo
- Department of Chemistry – Ångström Laboratory, Uppsala University, Box 523, SE-751 20 Uppsala, Sweden
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241
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Ly NH, Lam ATN, Dinh Bao N, Kwark YJ, Joo SW. Glucose-induced and fructose-induced deboronation reaction of 4-mercaptophenylboronic acid assembled on silver investigated by surface-enhanced Raman scattering. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6184] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Nguyễn Hoàng Ly
- Department of Chemistry; Soongsil University; Seoul 156-743 Korea
| | - Anh Thu Ngoc Lam
- Department of Chemistry; Soongsil University; Seoul 156-743 Korea
| | - Nguyen Dinh Bao
- Department of Chemistry; Soongsil University; Seoul 156-743 Korea
- Department of Information Communication, Materials, Chemistry Convergence Technology; Soongsil University; Seoul Korea
| | - Young-Je Kwark
- Department of Information Communication, Materials, Chemistry Convergence Technology; Soongsil University; Seoul Korea
- Department of Organic Materials and Fiber Engineering; Soongsil University; Seoul 156-743 Korea
| | - Sang Woo Joo
- Department of Chemistry; Soongsil University; Seoul 156-743 Korea
- Department of Information Communication, Materials, Chemistry Convergence Technology; Soongsil University; Seoul Korea
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242
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Troian-Gautier L, Mugeniwabagara E, Fusaro L, Moucheron C, Kirsch-De Mesmaeker A, Luhmer M. pH Dependence of Photoinduced Electron Transfer with [Ru(TAP)3]2+. Inorg Chem 2016; 56:1794-1803. [DOI: 10.1021/acs.inorgchem.6b01780] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ludovic Troian-Gautier
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
| | - Epiphanie Mugeniwabagara
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
| | - Luca Fusaro
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
| | - Cécile Moucheron
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
| | - Andrée Kirsch-De Mesmaeker
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
| | - Michel Luhmer
- Laboratoire
de Chimie Organique et Photochimie and §Laboratoire de Résonance Magnétique
Nucléaire Haute Résolution, Université libre de Bruxelles, 50 av. F. D. Roosevelt, CP160/08, B-1050 Bruxelles, Belgium
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243
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Iturbe C, Loeb B, Barrera M, Brito I, Cañete A. Design and synthesis of non-symmetric phenylpyridine type ligands. Experimental and theoretical studies of their corresponding iridium complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.07.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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244
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Chai Z, Wan S, Zhong C, Xu T, Fang M, Wang J, Xie Y, Zhang Y, Mei A, Han H, Peng Q, Li Q, Li Z. Conjugated or Broken: The Introduction of Isolation Spacer ahead of the Anchoring Moiety and the Improved Device Performance. ACS APPLIED MATERIALS & INTERFACES 2016; 8:28652-28662. [PMID: 27700025 DOI: 10.1021/acsami.6b10030] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Acceptors in traditional dyes are generally designed closed to TiO2 substrate to form a strong electronic coupling with each other (e.g., cyanoacrylic acid) to enhance the electron injection for the high performance of the corresponding solar cells. However, some newly developed dyes with chromophores or main acceptors isolated from anchoring groups also exhibit comparable or even higher performances. To investigate the relatively untouched electronic coupling effect in dye-sensitized solar cells, a relatively precise method is proposed in which the strength is adjusted gradually by changing isolation spacers between main acceptors and anchoring groups to partially control the electronic interaction. After an analysis of 3 different groups of 11 sensitizers, it is inferred that the electronic coupling should be kept at a suitable level to balance the electron injection and recombination. Based on a reference dye LI-81 possessing a cyanoacrylic acid as acceptor and anchoring group, both photocurrent and photovoltage are synergistically improved after the properties of isolation spacers were changed through the adjustment of the length, steric hindrance, and push-pull electronic characteristic. Accordingly, the rationally designed dye LI-87 with an isolation spacer of thiophene ethylene gives an efficiency of 8.54% and further improved to 9.07% in the presence of CDCA, showing a new way to develop efficient sensitizers.
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Affiliation(s)
- Zhaofei Chai
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Sushu Wan
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Cheng Zhong
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Ting Xu
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Manman Fang
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Jinfeng Wang
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Yujun Xie
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Yu Zhang
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Anyi Mei
- Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology , Wuhan 430072, China
| | - Hongwei Han
- Michael Grätzel Center for Mesoscopic Solar Cells, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology , Wuhan 430072, China
| | - Qian Peng
- Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Science, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China
| | - Qianqian Li
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
| | - Zhen Li
- Department of Chemistry, Hubei Key Lab on Organic and Polymeric Optoelectronic Materials, Wuhan University , Wuhan 430072, China
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245
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Brennaman MK, Dillon RJ, Alibabaei L, Gish MK, Dares CJ, Ashford DL, House RL, Meyer GJ, Papanikolas JM, Meyer TJ. Finding the Way to Solar Fuels with Dye-Sensitized Photoelectrosynthesis Cells. J Am Chem Soc 2016; 138:13085-13102. [PMID: 27654634 DOI: 10.1021/jacs.6b06466] [Citation(s) in RCA: 207] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The dye-sensitized photoelectrosynthesis cell (DSPEC) integrates high bandgap, nanoparticle oxide semiconductors with the light-absorbing and catalytic properties of designed chromophore-catalyst assemblies. The goals are photoelectrochemical water splitting into hydrogen and oxygen and reduction of CO2 by water to give oxygen and carbon-based fuels. Solar-driven water oxidation occurs at a photoanode and water or CO2 reduction at a cathode or photocathode initiated by molecular-level light absorption. Light absorption is followed by electron or hole injection, catalyst activation, and catalytic water oxidation or water/CO2 reduction. The DSPEC is of recent origin but significant progress has been made. It has the potential to play an important role in our energy future.
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Affiliation(s)
- M Kyle Brennaman
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Robert J Dillon
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Leila Alibabaei
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Melissa K Gish
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Christopher J Dares
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Dennis L Ashford
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Ralph L House
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Gerald J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - John M Papanikolas
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
| | - Thomas J Meyer
- Department of Chemistry, University of North Carolina at Chapel Hill , CB#3290, Chapel Hill, North Carolina 27599-3290, United States
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246
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Pilarczyk K, Daly B, Podborska A, Kwolek P, Silverson VA, de Silva AP, Szaciłowski K. Coordination chemistry for information acquisition and processing. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.012] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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247
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Horvath R, Huff GS, Gordon KC, George MW. Probing the excited state nature of coordination complexes with blended organic and inorganic chromophores using vibrational spectroscopy. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.04.007] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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248
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Sun C, Li Y, Song P, Ma F. An Experimental and Theoretical Investigation of the Electronic Structures and Photoelectrical Properties of Ethyl Red and Carminic Acid for DSSC Application. MATERIALS (BASEL, SWITZERLAND) 2016; 9:E813. [PMID: 28773937 PMCID: PMC5456617 DOI: 10.3390/ma9100813] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Revised: 09/21/2016] [Accepted: 09/27/2016] [Indexed: 12/02/2022]
Abstract
The photoelectrical properties of two dyes-ethyl red and carminic acid-as sensitizers of dye-sensitized solar cells were investigated in experiments herein described. In order to reveal the reason for the difference between the photoelectrical properties of the two dyes, the ground state and excited state properties of the dyes before and after adsorbed on TiO₂ were calculated via density functional theory (DFT) and time-dependent DFT (TDDFT). The key parameters including the light harvesting efficiency (LHE), the driving force of electron injection ( Δ G inject ) and dye regeneration ( Δ G regen ), the total dipole moment ( μ normal ), the conduction band of edge of the semiconductor ( Δ E CB ), and the excited state lifetime (τ) were investigated, which are closely related to the short-circuit current density ( J sc ) and open circuit voltage ( V oc ). It was found that the experimental carminic acid has a larger J sc and V oc , which are interpreted by a larger amount of dye adsorbed on a TiO₂ photoanode and a larger Δ G regen , excited state lifetime (τ), μ normal , and Δ E CB . At the same time, chemical reactivity parameters illustrate that the lower chemical hardness (h) and higher electron accepting power (ω⁺) of carminic acid have an influence on the short-circuit current density. Therefore, carminic acid shows excellent photoelectric conversion efficiency in comparison with ethyl red.
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Affiliation(s)
- Chaofan Sun
- College of Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
| | - Yuanzuo Li
- College of Science, Northeast Forestry University, Harbin 150040, Heilongjiang, China.
| | - Peng Song
- Department of Physics, Liaoning University, Shenyang 110036, Liaoning, China.
| | - Fengcai Ma
- Department of Physics, Liaoning University, Shenyang 110036, Liaoning, China.
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249
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Moia D, Szumska A, Vaissier V, Planells M, Robertson N, O’Regan BC, Nelson J, Barnes PRF. Interdye Hole Transport Accelerates Recombination in Dye Sensitized Mesoporous Films. J Am Chem Soc 2016; 138:13197-13206. [DOI: 10.1021/jacs.6b04956] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Davide Moia
- Blackett
Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, U.K
| | - Anna Szumska
- Blackett
Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, U.K
| | - Valérie Vaissier
- Blackett
Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, U.K
| | - Miquel Planells
- EaStCHEM
School of Chemistry, University of Edinburgh, King’s Buildings, David Brewster
Road, Edinburgh EH93FJ, U.K
| | - Neil Robertson
- EaStCHEM
School of Chemistry, University of Edinburgh, King’s Buildings, David Brewster
Road, Edinburgh EH93FJ, U.K
| | - Brian C. O’Regan
- Department
of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Jenny Nelson
- Blackett
Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, U.K
| | - Piers R. F. Barnes
- Blackett
Laboratory, Imperial College London, Prince Consort Road, London SW7 2AZ, U.K
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250
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Kamire RJ, Majewski MB, Hoffeditz WL, Phelan BT, Farha OK, Hupp JT, Wasielewski MR. Photodriven hydrogen evolution by molecular catalysts using Al 2O 3-protected perylene-3,4-dicarboximide on NiO electrodes. Chem Sci 2016; 8:541-549. [PMID: 28616134 PMCID: PMC5458681 DOI: 10.1039/c6sc02477g] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Accepted: 08/17/2016] [Indexed: 12/18/2022] Open
Abstract
Photodriven charge transfer dynamics are described for an atomic layer deposition-stabilized, organic dye-sensitized photocathode architecture that produces hydrogen.
The design of efficient hydrogen-evolving photocathodes for dye-sensitized photoelectrochemical cells (DSPECs) requires the incorporation of molecular light absorbing chromophores that are capable of delivering reducing equivalents to molecular proton reduction catalysts at rates exceeding those of charge recombination events. Here, we report the functionalization and kinetic analysis of a nanostructured NiO electrode with a modified perylene-3,4-dicarboximide chromophore (PMI) that is stabilized against degradation by atomic layer deposition (ALD) of thick insulating Al2O3 layers. Following photoinduced charge injection into NiO in high yield, films with Al2O3 layers demonstrate longer charge separated lifetimes as characterized via femtosecond transient absorption spectroscopy and photoelectrochemical techniques. The photoelectrochemical behavior of the electrodes in the presence of Co(ii) and Ni(ii) molecular proton reduction catalysts is examined, revealing reduction of both catalysts. Under prolonged irradiation, evolved H2 is directly observed by gas chromatography supporting the applicability of PMI embedded in Al2O3 as a photocathode architecture in DSPECs.
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Affiliation(s)
- Rebecca J Kamire
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - Marek B Majewski
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - William L Hoffeditz
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - Brian T Phelan
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - Omar K Farha
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - Joseph T Hupp
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
| | - Michael R Wasielewski
- Department of Chemistry and Argonne-Northwestern Solar Energy Research (ANSER) Center , Northwestern University , Evanston , IL 60208-3113 , USA .
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