1
|
Pattadar D, Arcidiacono A, Beery D, Hanson K, Saavedra SS. Molecular Orientation and Energy Transfer Dynamics of a Metal Oxide Bound Self-Assembled Trilayer. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:10670-10679. [PMID: 37466635 DOI: 10.1021/acs.langmuir.3c01323] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
Self-assembly of molecular multilayers via metal ion linkages has become an important strategy for interfacial engineering of metalloid and metal oxide (MOx) substrates, with applications in numerous areas, including energy harvesting, catalysis, and chemical sensing. An important aspect for the rational design of these multilayers is knowledge of the molecular structure-function relationships. For example, in a multilayer composed of different chromophores in each layer, the molecular orientation of each layer, both relative to the adjacent layers and the substrate, influences the efficiency of vectorial energy and electron transfer. Here, we describe an approach using UV-vis attenuated total reflection (ATR) spectroscopy to determine the mean dipole tilt angle of chromophores in each layer in a metal ion-linked trilayer self-assembled on indium-tin oxide. To our knowledge, this is the first report demonstrating the measurement of the orientation of three different chromophores in a single assembly. The ATR approach allows the adsorption of each layer to be monitored in real-time, and any changes in the orientation of an underlying layer arising from the adsorption of an overlying layer can be detected. We also performed transient absorption spectroscopy to monitor interlayer energy transfer dynamics in order to relate structure to function. We found that near unity efficiency, sub-nanosecond energy transfer between the third and second layer was primarily dictated by the distance between the chromophores. Thus, in this case, the orientation had minimal impact at such proximity.
Collapse
Affiliation(s)
- Dhruba Pattadar
- Department of Chemistry, University of Arizona, Tucson, Arizona 85721, United States
| | - Ashley Arcidiacono
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Drake Beery
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Kenneth Hanson
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - S Scott Saavedra
- Department of Chemistry, University of Arizona, Tucson, Arizona 85721, United States
| |
Collapse
|
2
|
Efa MT, Huang JC, Imae T. Cascade Förster Resonance Energy Transfer Studies for Enhancement of Light Harvesting on Dye-Sensitized Solar Cells. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4085. [PMID: 36432368 PMCID: PMC9694053 DOI: 10.3390/nano12224085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Revised: 11/14/2022] [Accepted: 11/15/2022] [Indexed: 06/16/2023]
Abstract
This work reports cascade Förster resonance energy transfer (FRET)-based n-type (ZnO) and p-type (NiO) dye-sensitized solar cells (DSSCs), discussing approaches to enhance their overall performance. Although DSSCs suffer from poorer performance than other solar cells, the use of composites with carbon dot (Cdot) can enhance the power conversion efficiency (PCE) of DSSCs. However, further improvements are demanded through molecular design to stimulate DSSCs. Here, a photosensitized system based on a cascade FRET was induced alongside the conventional photosensitizer dye (N719). To N719 in a DSSC is transferred the energy cascaded through donor fluorescence materials (pyrene, 3-acetyl-7-N,N-diethyl-coumarin or coumarin and acridine orange), and this process enhances the light-harvesting properties of the sensitizers in the DSSC across a broad region of the solar spectrum. PCE values of 10.7 and 11.3% were achieved for ZnO/Cdot and NiO/Cdot DSSCs, respectively. These high PCE values result from the energy transfer among multi-photosensitizers (cascade FRET fluorophores, N719, and Cdot). Moreover, Cdot can play a role in intensifying the adsorption of dyes and discouraging charge recombination on the semiconductor. The present results raise expectations that a significant improvement in photovoltaic performance can be attained of DSSCs exploiting the cascade FRET photonics phenomenon.
Collapse
Affiliation(s)
- Mulugeta Tesema Efa
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Jheng-Chang Huang
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| | - Toyoko Imae
- Graduate Institute of Applied Science and Technology, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
- Department of Chemical Engineering, National Taiwan University of Science and Technology, Taipei 10607, Taiwan
| |
Collapse
|
3
|
Yoshimura N, Yoshida M, Kato M, Kobayashi A. Photocatalyst-Mediator Interface Modification by Surface-Metal Cations of a Dye-Sensitized H 2 Evolution Photocatalyst. Inorg Chem 2022; 61:11095-11102. [PMID: 35833492 DOI: 10.1021/acs.inorgchem.2c00851] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
To develop highly active H2 evolving dye-sensitized photocatalysts (DSPs) applicable for Z-scheme water splitting, we synthesized a series of Ru(II)-dye-double-layered DSPs, X'-RuCP6-Zr-RuP6@Pt-TiO2 (X'-DSP) with different surface-bound metal cations (X' = Fe2+, Y3+, Zr4+, Hf4+, and Bi3+). In 0.5 M KI aqueous solution, the photocatalytic H2 evolution activity under blue light irradiation (λ = 460 ± 15 nm) increased in the following order: nonmetal-modified DSP, H+-DSP (turn over number for 6 h irradiation = 35.2) < Fe2+-DSP (54.9) ≈ Bi3+-DSP (55.2) < Hf4+-DSP (65.5) ≈ Zr4+-DSP (68.3) ≈ Y3+-DSP (71.5), suggesting that the redox-inactive and highly charged metal cations tend to improve the electron donation from the iodide electron mediator. On the other hand, DSPs having heavy metal cations, Hf4+-DSP (18.4) and Bi3+-DSP (16.6), exhibited better activity under green light irradiation (λ = 530 ± 15 nm) than Zr4+-DSP (15.7) and H+-DSP (7.80), implying the contribution of a heavy atom effect of the surface-bound metal cation to partially allow the spin-forbidden metal-to-ligand charge-transfer excitation.
Collapse
Affiliation(s)
- Nobutaka Yoshimura
- 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.,Department of Applied Chemistry for Environment, School of Biological and Environmental Sciences, Kwansei Gakuin University, 2-1 Gakuen, Sanda, Hyogo 669-1337, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo 060-0810, Japan
| |
Collapse
|
4
|
Najm A, Ahmad Ludin N, Jaber I, Hamid NH, Salah Naeem H. Influence of the concentration of chenodeoxycholic acid on the performance of the N719 dye. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2021.120776] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
5
|
Arcidiacono A, Robb AJ, Masitas RA, Salpage SR, McLeod GM, Chen J, Ogunsolu OO, Roper MG, Hanson K. Inhibited interlayer electron transfer in metal ion linked multilayers on mesoporous metal oxide films. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY 2022. [DOI: 10.1016/j.jpap.2021.100088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
|
6
|
Arcidiacono A, Zhou Y, Zhang W, Ellison JO, Ayad S, Knorr ES, Peters AN, Zheng L, Yang W, Saavedra SS, Hanson K. Examining the influence of bilayer structure on energy transfer and molecular photon upconversion in metal ion linked multilayers. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2020; 124:23597-23610. [PMID: 33354274 PMCID: PMC7750814 DOI: 10.1021/acs.jpcc.0c08715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Metal ion linked multilayers is a unique motif to spatially control and geometrically restrict molecules on a metal oxide surface and is of interest in a number of promising applications. Here we use a bilayer composed of a metal oxide surface, an anthracene annihilator molecule, Zn(II) linking ion, and porphyrin sensitizers to probe the influence of the position of the metal ion binding site on energy transfer, photon upconversion, and photocurrent generation. Despite being energetically similar, varying the position of the carboxy metal ion binding group (i.e. ortho, meta, para) of the Pt(II) tetraphenyl porphyrin sensitizer had a large impact on energy transfer rates and upconverted photocurrent that can be attributed to differences in their geometries. From polarized attenuated total reflectance measurements of the bilayers on ITO, we found that the orientation of the first layer (anthracene) was largely unperturbed by subsequent layers. However, the tilt angle of the porphyrin plane varies dramatically from 41° to 64° to 57° for the para-, meta-, and ortho-COOH substituted porphyrin molecules, which is likely responsible for the variation in energy transfer rates. We go on to show using molecular dynamics simulations that there is considerable flexibility in porphyrin orientation, indicating that an average structure is insufficient to predict the ensemble behavior. Instead, even a small subset of the population with highly favorable energy transfer rates can be the primary driver in increasing the likelihood of energy transfer. Gaining control of the orientation and its distribution will be a critical step in maximizing the potential of the metal ion linked structures.
Collapse
Affiliation(s)
- Ashley Arcidiacono
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Yan Zhou
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Wendi Zhang
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, USA
| | - Jeffrey O. Ellison
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Suliman Ayad
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Erica S. Knorr
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Autumn N. Peters
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| | - Lianqing Zheng
- Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA
| | - Wei Yang
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
- Institute of Molecular Biophysics, Florida State University, Tallahassee, FL 32306, USA
| | - S. Scott Saavedra
- Department of Chemistry and Biochemistry, University of Arizona, Tucson, Arizona 85721, USA
| | - Kenneth Hanson
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, USA
| |
Collapse
|
7
|
Robb AJ, Miles D, Salpage SR, Watson N, He Q, Wu Q, Hanson K. Role of Metal Ion-Linked Multilayer Thickness and Substrate Porosity in Surface Loading, Diffusion, and Solar Energy Conversion. ACS APPLIED MATERIALS & INTERFACES 2020; 12:38003-38011. [PMID: 32799530 DOI: 10.1021/acsami.0c07968] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Metal ion-linked multilayers offer an easily prepared and modular architecture for controlling energy and electron transfer events on nanoparticle, metal oxide films. However, unlike with planar electrodes, the mesoporous nature of the films inherently limits both the thickness of the multilayer and subsequent diffusion through the pores. Here, we systematically investigated the role of TiO2 nanoparticle film porosity and metal ion-linked multilayer thickness in surface loading, through-pore diffusion, and overall device performance. The TiO2 porosity was controlled by varying TiO2 sintering times. Molecular multilayer thickness was controlled through assembling ZnII-linked bridging molecules (B = p-terphenyl diphosphonic acid) between the metal oxide and the Ru(bpy)2((4,4'-PO3H2)2bpy)]Cl2 dye (RuP), thus producing TiO2-(Bn)-RuP films. Using attenuated total reflectance infrared absorption and UV-vis spectroscopy, we observed that at least two molecular layers (i.e., TiO2-B2 or TiO2-B1-RuP) could be formed on all films but subsequent loading was dependent on the porosity of the TiO2. Rough estimates indicate that in a film with 34 nm average pore diameter, the maximum multilayer film thickness is on the order of 4.6-6 nm, which decreases with decreasing pore size. These films were then incorporated as the photoanodes in dye-sensitized solar cells with cobalt(II/III)tris(4,4'-di-tert-butyl-2,2'-bipyridine) as a redox mediator. In agreement with the surface-loading studies, electrochemical impedance spectroscopy measurements indicate that mediator diffusion is significantly hindered in films with thicker multilayers and less porous TiO2. Collectively, these results show that care must be taken to balance multilayer thickness, substrate porosity, and size of the mediator in designing and maximizing the performance of new multilayer energy and electron management architectures.
Collapse
Affiliation(s)
- Alex J Robb
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Dalton Miles
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Sahan R Salpage
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Noelle Watson
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Qingquan He
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Qiang Wu
- Department of Electrical and Computer Engineering, Florida A&M University-Florida State University College of Engineering, Tallahassee, Florida 32310, United States
| | - Kenneth Hanson
- Department of Chemistry & Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| |
Collapse
|
8
|
Bobo MV, Paul A, Robb AJ, Arcidiacono AM, Smith MD, Hanson K, Vannucci AK. Bis-Cyclometalated Iridium Complexes Containing 4,4′-Bis(phosphonomethyl)-2,2′-bipyridine Ligands: Photophysics, Electrochemistry, and High-Voltage Dye-Sensitized Solar Cells. Inorg Chem 2020; 59:6351-6358. [DOI: 10.1021/acs.inorgchem.0c00456] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- M. Victoria Bobo
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Avishek Paul
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Alex J. Robb
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Ashley M. Arcidiacono
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Mark D. Smith
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Aaron K. Vannucci
- Department of Chemistry and Biochemistry, University of South Carolina, Columbia, South Carolina 29208, United States
| |
Collapse
|
9
|
Robb AJ, Knorr ES, Watson N, Hanson K. Metal ion linked multilayers on mesoporous substrates: Energy/electron transfer, photon upconversion, and more. J Photochem Photobiol A Chem 2020. [DOI: 10.1016/j.jphotochem.2019.112291] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
10
|
Yoshimura N, Kobayashi A, Yoshida M, Kato M. A Systematic Study on the Double-Layered Photosensitizing Dye Structure on the Surface of Pt-Cocatalyst-Loaded TiO2 Nanoparticles. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190164] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Nobutaka Yoshimura
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Atsushi Kobayashi
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaki Yoshida
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masako Kato
- Department of Chemistry, Faculty of Science, Hokkaido University, North-10 West-8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| |
Collapse
|
11
|
Near-infrared electrochromism of multilayer films of a cyclometalated diruthenium complex prepared by layer-by-layer deposition on metal oxide substrates. Sci China Chem 2019. [DOI: 10.1007/s11426-019-9640-1] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
|
12
|
Adachi Y, Nabeya T, Nomura T, Kondo K, Kawakami K, Ooyama Y, Ohshita J. Direct comparison of dithienosilole and dithienogermole as π-conjugated linkers in photosensitizers for dye-sensitized solar cells. Dalton Trans 2019; 48:16671-16678. [PMID: 31663580 DOI: 10.1039/c9dt02600b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Dithienosilole (DTS) and dithienogermole (DTG) are useful building units of π-conjugated organic materials. In the present work, donor-π-acceptor (D-π-A) dyes with bis(dihexyloxyphenyl)aminophenyl, DTS or DTG, and pyridine or cyanoacrylic acid as the donor (D), the π-conjugated linker (π), and the acceptor (A) units, respectively, were prepared and their optical properties were investigated. The D-π-A dyes exhibited strong absorption in the visible region, indicating efficient intramolecular donor-acceptor interaction. The addition of trifluoroacetic acid to solutions of pyridine-containing dyes led to red-shifts of the absorption bands as a result of pyridinium salt formation. Similar red-shifts were observed for cyanoacrylic acid dyes, which were due to the enhanced formation of neutral dyes relative to the separated ion pairs. The D-π-A dyes, however, showed similar absorption spectra when attached to the TiO2 surface, indicating that the dye-TiO2 electronic interaction was rather weak. In contrast to the finding that these dyes exhibited similar optical properties regardless of the π-linker (i.e., DTS or DTG), dye-sensitized solar cells (DSSCs) based on DTG-containing dyes exhibited superior performance compared to those based on DTS-containing dyes. Electrochemical impedance spectroscopy measurements supported the higher performance of the DSSCs with DTG-containing dyes.
Collapse
Affiliation(s)
- Yohei Adachi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan.
| | | | | | | | | | | | | |
Collapse
|
13
|
Jia HL, Peng ZJ, Li SS, Huang CY, Guan MY. Self-Assembly by Coordination with Organic Antenna Chromophores for Dye-Sensitized Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2019; 11:15845-15852. [PMID: 30957484 DOI: 10.1021/acsami.9b00870] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The development of new sensitizers and new sensitization methods is one of the important means to enhance the conversion efficiency of dye-sensitized solar cells (DSSCs); the ultimate goal is to broaden the spectral response of dyes, reduce electron recombination, and suppress dye aggregation. In this study, we have developed a series of new self-assembled dyes and applied them in DSSCs. We prepared two organic antenna chromophores S1 and S2 and coordinated them with two acceptors A1 and A2 via zinc to construct A-Zn-S series self-assembled dyes. This method is very simple and feasible and can avoid the complex synthesis steps of traditional dyes; the results show that the light-harvesting ability of devices can be improved and charge recombination can be reduced by adjusting the structures of the antenna chromophores and acceptors. The device with A2-Zn-S1 gave a power conversion efficiency of 4.25%, which was higher than those with A1-Zn-S1 (3.88%), A1-Zn-S2 (3.21%), and A2-Zn-S2 (3.52%); the main reason for this is that the different coordination combinations between the antenna chromophore and the acceptor show great differences in Voc and Jsc. The device based on A2-Zn-S1 showed a high Voc of 632 mV and a high Jsc of 9.54 mA cm-2; one reason for this is that S1 has better spectral responsiveness and another reason is that A2 has better steric resistance that effectively reduces charge recombination. Besides, IR spectra indicate that these self-assembled dyes anchored on a TiO2 surface by bicarboxyl anchoring groups are also very beneficial for improving the performance of dyes.
Collapse
Affiliation(s)
- Hai-Lang Jia
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy , Jiangsu University of Technology , Changzhou 213001 , P. R. China
| | - Zhi-Jie Peng
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy , Jiangsu University of Technology , Changzhou 213001 , P. R. China
| | - Shan-Shan Li
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy , Jiangsu University of Technology , Changzhou 213001 , P. R. China
| | - Cheng-Yan Huang
- Department of Chemistry, School of Environmental Science and Engineering, Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control , Nanjing University of Information Science & Technology , Nanjing 210044 , P. R. China
| | - Ming-Yun Guan
- School of Chemical and Environmental Engineering, Institute of Advanced Functional Materials for Energy , Jiangsu University of Technology , Changzhou 213001 , P. R. China
| |
Collapse
|
14
|
Shao JY, Zhong YW. Stabilization of a Cyclometalated Ruthenium Sensitizer on Nanocrystalline TiO 2 by an Electrodeposited Covalent Layer. Inorg Chem 2019; 58:3509-3517. [PMID: 30758195 DOI: 10.1021/acs.inorgchem.9b00092] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A cyclometalated ruthenium sensitizer 3 containing a triphenylamine unit was synthesized and immobilized on a nanocrystalline TiO2 surface. By using oxidative electrochemical deposition, a covalent layer of a related cyclometalated ruthenium complex 2 was coupled to the top of dye 3. Electrochemical studies suggested that complex 2 was immobilized on the TiO2/3 film surface by a tetraphenylbenzidine linker to form a dimer-like structure. The immobilization of 3 and 2 was further supported by absorption spectral analysis. The resulting electrodeposited TiO2/(3+2) film displays significantly enhanced sensitizer stabilization toward basic aqueous NaOH solution with respect to the original TiO2/3 film. The dye-sensitized solar cells with the TiO2/(3+2) photoanode display a power conversion efficiency of 4.4%, which is slightly inferior to that with the TiO2/3 film (5.1%) under the same measurement conditions.
Collapse
Affiliation(s)
- Jiang-Yang Shao
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China
| | - Yu-Wu Zhong
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences , Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190 , China.,School of Chemical Sciences , University of Chinese Academy of Sciences , Beijing 100049 , China
| |
Collapse
|
15
|
Li ZJ, Shao JY, Wu SH, Zhong YW. Nanocrystalline Sb-doped SnO 2 films modified with cyclometalated ruthenium complexes for two-step electrochromism. Dalton Trans 2019; 48:2197-2205. [PMID: 30675878 DOI: 10.1039/c8dt04968h] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Sb-Doped nanocrystalline SnO2 (SnO2:Sb) thin films functionalized with cyclometalated ruthenium complexes 1 or 2 on FTO conductive glasses have been prepared and characterized. These complexes contain a redox-active amine unit separated from the ruthenium ion by a phenyl or biphenyl linker, respectively, to modify the absorption wavelengths at different redox states. Near-infrared electrochromism of both films has been examined by oxidative spectroelectrochemical measurements and double-potential-step chronoamperometry. A contrast ratio (ΔT%) of 33% at 1070 nm and 63% at 696 nm has been achieved for the SnO2:Sb/1 film in two stepwise oxidation processes, respectively. The other film with complex 2 shows two-step electrochromism at 1310 and 806 nm with ΔT% of 36% and 76%, respectively. The response time of electrochromic switching is around a few seconds. Taking advantage of the good contrast ratio, the rapid response, and the long retention time of each oxidation state, these films have been successfully used to demonstrate surface-confined flip-flop memory functions with a high ON/OFF ratio.
Collapse
Affiliation(s)
- Zhi-Juan Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, CAS Research/Education Center for Excellence in Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
| | | | | | | |
Collapse
|
16
|
Delekar SD, More KV, Dhodamani AG, Maity K, Acquah SFA, Dalal N, Panda DK. Noncovalent interactions based self-assembled bichromophoric sensitizer for dye-sensitized solar cells. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04196-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
17
|
Wang JC, Hill SP, Dilbeck T, Ogunsolu OO, Banerjee T, Hanson K. Multimolecular assemblies on high surface area metal oxides and their role in interfacial energy and electron transfer. Chem Soc Rev 2018; 47:104-148. [DOI: 10.1039/c7cs00565b] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
High surface area metal oxides offer a unique substrate for the assembly of multiple molecular components at an interface.
Collapse
Affiliation(s)
- Jamie C. Wang
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Sean P. Hill
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Tristan Dilbeck
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | | | - Tanmay Banerjee
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
- Max Planck Institute for Solid State Research
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
- Materials Science and Engineering
| |
Collapse
|
18
|
Kandhadi J, Yan WC, Cheng F, Wang H, Liu HY. trans-A2B-corrole bearing 2,3-di(2-pyridyl)quinoxaline (DPQ)/phenothiazine moieties: synthesis, characterization, electrochemistry and photophysics. NEW J CHEM 2018. [DOI: 10.1039/c8nj00606g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Singlet–singlet energy transfer and electron transfer processes in corrole–phenothiazine and corrole–DPQ dyads were demonstrated by using electrochemical and fluorescence (steady-state and time-resolved) spectral studies.
Collapse
Affiliation(s)
- Jaipal Kandhadi
- State Key Laboratory of Optoelectronics Materials and Technologies
- Sun-Yat Sen University
- Guangzhou
- China
| | - Wei-Cong Yan
- State Key Laboratory of Optoelectronics Materials and Technologies
- Sun-Yat Sen University
- Guangzhou
- China
| | - Fan Cheng
- Department of Chemistry
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- South China University of Technology
- Guangzhou
- China
| | - Hui Wang
- State Key Laboratory of Optoelectronics Materials and Technologies
- Sun-Yat Sen University
- Guangzhou
- China
| | - Hai-Yang Liu
- Department of Chemistry
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- South China University of Technology
- Guangzhou
- China
| |
Collapse
|
19
|
Zhou Y, Ayad S, Ruchlin C, Posey V, Hill SP, Wu Q, Hanson K. Examining the role of acceptor molecule structure in self-assembled bilayers: surface loading, stability, energy transfer, and upconverted emission. Phys Chem Chem Phys 2018; 20:20513-20524. [DOI: 10.1039/c8cp03628d] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
This report provides insights into the TTA-UC process with respect to the structure of the acceptor molecule in self-assembled bilayer films.
Collapse
Affiliation(s)
- Yan Zhou
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Suliman Ayad
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Cory Ruchlin
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Victoria Posey
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Sean P. Hill
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Qiang Wu
- National High Magnetic Field Laboratory
- High-Performance Materials Institute
- Tallahassee
- USA
| | - Kenneth Hanson
- Department of Chemistry & Biochemistry
- Florida State University
- Tallahassee
- USA
| |
Collapse
|
20
|
Wanwong S, Sangkhun W, Wootthikanokkhan J. The effect of co-sensitization methods between N719 and boron dipyrromethene triads on dye-sensitized solar cell performance. RSC Adv 2018; 8:9202-9210. [PMID: 35541836 PMCID: PMC9078650 DOI: 10.1039/c8ra00862k] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 02/21/2018] [Indexed: 01/09/2023] Open
Abstract
A boron dipyrromethene (BODIPY) featuring triphenylamine triad, BD, has been synthesized as a co-sensitizer in dye-sensitized solar cells (DSCs). The optical and electrochemical properties of BD have been characterized using UV-vis spectroscopy and cyclic voltammetry. DSCs containing co-sensitizers, N719 and BD, have been prepared in two procedures using co-deposition and stepwise deposition. The influences of the staining processes, co-deposition and stepwise deposition on dye loading, dye dispersion on a TiO2 photoanode and DSC performance have been investigated using FTIR, SEM-EDS, I–V test and IPCE measurement, respectively. We found that stepwise co-sensitization provided higher solar cell efficiency, compared to those stained with a co-deposition method. N719/5% BD showed the highest power conversion efficiency of 5.14%. Interestingly, the enhanced device efficiency was 66% higher than that of a device containing the single N719 dye. BODIPY triad, BD, was prepared as co-sensitizer. The stepwise sensitization method exhibited higher PCE, compared to the co-deposition method.![]()
Collapse
Affiliation(s)
- Sompit Wanwong
- Division of Materials Technology
- School of Energy, Environment and Materials
- King Mongkut's University of Technology Thonburi
- Bangkok 10140
- Thailand
| | - Weradesh Sangkhun
- Division of Materials Technology
- School of Energy, Environment and Materials
- King Mongkut's University of Technology Thonburi
- Bangkok 10140
- Thailand
| | - Jatuphorn Wootthikanokkhan
- Division of Materials Technology
- School of Energy, Environment and Materials
- King Mongkut's University of Technology Thonburi
- Bangkok 10140
- Thailand
| |
Collapse
|
21
|
Wang JC, Violette K, Ogunsolu OO, Cekli S, Lambers E, Fares HM, Hanson K. Self-Assembled Bilayers on Nanocrystalline Metal Oxides: Exploring the Non-Innocent Nature of the Linking Ions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:9609-9619. [PMID: 28821211 DOI: 10.1021/acs.langmuir.7b01964] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Self-assembled bilayers on nanocrystalline metal oxide films are an increasingly popular strategy for modulating electron and energy transfer at dye-semiconductor interfaces. A majority of the work to date has relied on ZrII and ZnIV linking ions to assemble the films. In this report, we demonstrate that several different cations (CdII, CuII, FeII, LaIII, MnII, and SnIV) are not only effective in generating the bilayer assemblies but also have a profound influence on the stability and photophysical properties of the films. Bilayer films with ZrIV ions exhibited the highest photostability on both TiO2 and ZrO2. Despite the metal ions having a minimal influence on the absorption/emission energies and oxidation potentials of the dye, bilayers composed of CuII, FeII, and MnII exhibit significant excited-state quenching. The excited-state quenching decreases the electron injection yield but also, for CuII and MnII bilayers, significantly slows the back electron transfer kinetics.
Collapse
Affiliation(s)
- Jamie C Wang
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Kyle Violette
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Omotola O Ogunsolu
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Seda Cekli
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Eric Lambers
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Hadi M Fares
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| | - Kenneth Hanson
- Department of Chemistry and Biochemistry and ‡Materials Science and Engineering, Florida State University , Tallahassee, Florida 32306, United States
- Department of Chemistry and ∥Department of Materials Science and Engineering, University of Florida , Gainesville, Florida 32611, United States
| |
Collapse
|
22
|
Ogunsolu OO, Wang JC, Hanson K. Increasing the Open-Circuit Voltage of Dye-Sensitized Solar Cells via Metal-Ion Coordination. Inorg Chem 2017; 56:11168-11175. [DOI: 10.1021/acs.inorgchem.7b01531] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Omotola O. Ogunsolu
- Materials
Science and Engineering and ‡Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Jamie C. Wang
- Materials
Science and Engineering and ‡Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| | - Kenneth Hanson
- Materials
Science and Engineering and ‡Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306, United States
| |
Collapse
|
23
|
Wang JC, Violette K, Ogunsolu OO, Hanson K. Metal ion mediated electron transfer at dye–semiconductor interfaces. Phys Chem Chem Phys 2017; 19:2679-2682. [DOI: 10.1039/c6cp07939c] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Metal linking ions in self-assembled bilayers have a strong influence on the electron transfer events at dye–semiconductor interfaces.
Collapse
Affiliation(s)
- Jamie C. Wang
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | - Kyle Violette
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
| | | | - Kenneth Hanson
- Department of Chemistry and Biochemistry
- Florida State University
- Tallahassee
- USA
- Materials Science and Engineering
| |
Collapse
|