1
|
Duan S, Uragami C, Horiuchi K, Hino K, Wang XF, Sasaki SI, Tamiaki H, Hashimoto H. Hydroquinone redox mediator enhances the photovoltaic performances of chlorophyll-based bio-inspired solar cells. Commun Chem 2021; 4:118. [PMID: 36697644 PMCID: PMC9814249 DOI: 10.1038/s42004-021-00556-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2021] [Accepted: 07/21/2021] [Indexed: 01/28/2023] Open
Abstract
Chlorophyll (Chl) derivatives have recently been proposed as photoactive materials in next-generation bio-inspired solar cells, because of their natural abundance, environmental friendliness, excellent photoelectric performance, and biodegradability. However, the intrinsic excitation dynamics of Chl derivatives remain unclear. Here, we show sub-nanosecond pump-probe time-resolved absorption spectroscopy of Chl derivatives both in solution and solid film states. We observe the formation of triplet-excited states of Chl derivatives both in deoxygenated solutions and in film samples by adding all-trans-β-carotene as a triplet scavenger. In addition, radical species of the Chl derivatives in solution were identified by adding hydroquinone as a cation radical scavenger and/or anion radical donor. These radical species (either cations or anions) can become carriers in Chl-derivative-based solar cells. Remarkably, the introduction of hydroquinone to the film samples enhanced the carrier lifetimes and the power conversion efficiency of Chl-based solar cells by 20% (from pristine 1.29% to 1.55%). This enhancement is due to a charge recombination process of Chl-A+/Chl-D-, which is based on the natural Z-scheme process of photosynthesis.
Collapse
Affiliation(s)
- Shengnan Duan
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, P. R. China
- Department of Applied Chemistry for Environment, Graduate School of Science and Technology, Kwansei Gakuen University, Sanda, Hyogo, Japan
- School of Science, Chongqing University of Posts and Telecommunications, Chongqing, P. R. China
| | - Chiasa Uragami
- Department of Applied Chemistry for Environment, Graduate School of Science and Technology, Kwansei Gakuen University, Sanda, Hyogo, Japan
| | - Kota Horiuchi
- Department of Applied Chemistry for Environment, Graduate School of Science and Technology, Kwansei Gakuen University, Sanda, Hyogo, Japan
| | - Kazuki Hino
- Department of Applied Chemistry for Environment, Graduate School of Science and Technology, Kwansei Gakuen University, Sanda, Hyogo, Japan
| | - Xiao-Feng Wang
- Key Laboratory of Physics and Technology for Advanced Batteries (Ministry of Education), College of Physics, Jilin University, Changchun, P. R. China.
| | - Shin-Ichi Sasaki
- Nagahama Institute of Bio-Science and Technology, Nagahama, Shiga, Japan
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Hitoshi Tamiaki
- Graduate School of Life Sciences, Ritsumeikan University, Kusatsu, Shiga, Japan
| | - Hideki Hashimoto
- Department of Applied Chemistry for Environment, Graduate School of Science and Technology, Kwansei Gakuen University, Sanda, Hyogo, Japan.
| |
Collapse
|
2
|
Nakano T, Tamiaki H. Synthesis and Self‐Aggregation of Chlorophyll‐
a
Derivatives with Ethynylene and Phenylene Groups Inserted Between the Hydroxymethyl Group and the Chlorin π‐Skeleton. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Takeo Nakano
- Graduate School of Life SciencesRitsumeikan University Kusatsu Shiga 525-8577 Japan
| | - Hitoshi Tamiaki
- Graduate School of Life SciencesRitsumeikan University Kusatsu Shiga 525-8577 Japan
| |
Collapse
|
3
|
Khadria A, de Coene Y, Gawel P, Roche C, Clays K, Anderson HL. Push-pull pyropheophorbides for nonlinear optical imaging. Org Biomol Chem 2018; 15:947-956. [PMID: 28054076 DOI: 10.1039/c6ob02319c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pyropheophorbide-a methyl ester (PPa-OMe) has been modified by attaching electron-donor and -acceptor groups to alter its linear and nonlinear optical properties. Regioselective bromination of the terminal vinyl position and Suzuki coupling were used to attach a 4-(N,N-diethylaminophenyl) electron-donor group. The electron-acceptor dicyanomethylene was attached at the cyclic ketone position through a Knoevenagel condensation. Four different derivatives of PPa-OMe, containing either electron-donor or electron-acceptor groups, or both, were converted to hydrophilic bis-TEG amides to generate a series of amphiphilic dyes. The absorption and emission properties of all the dyes were compared to a previously reported push-pull type porphyrin-based dye and a commercial push-pull styryl dye, FM4-64. Electrochemical measurements reveal that the electron donor group causes a greater decrease in HOMO-LUMO gap than the electron-acceptor. TD-DFT calculations on optimized geometries (DFT) of all four dyes show that the HOMO is mostly localized on the donor, 4-(N,N-diethylaminophenyl), while the LUMO is distributed around the chlorin ring and the electron-acceptor. Hyper-Rayleigh scattering experiments show that the first-order hyperpolarizabilities of the dyes increase on attaching either electron-donor or -acceptor groups, having the highest value when both the donor and acceptor groups are attached. Two-photon excited fluorescence (TPEF) and second harmonic generation (SHG) images of the bis-TEG amide attached dyes in lipid monolayer-coated droplets of water-in-oil reveal that the TPEF and SHG involve transition dipole moments in different orientations.
Collapse
Affiliation(s)
- Anjul Khadria
- Department of Chemistry, Oxford University, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
| | - Yovan de Coene
- Department of Chemistry, University of Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium.
| | - Przemyslaw Gawel
- Department of Chemistry, Oxford University, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
| | - Cécile Roche
- Department of Chemistry, Oxford University, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
| | - Koen Clays
- Department of Chemistry, University of Leuven, Celestijnenlaan 200 D, 3001 Leuven, Belgium.
| | - Harry L Anderson
- Department of Chemistry, Oxford University, Chemistry Research Laboratory, Mansfield Road, Oxford OX1 3TA, UK.
| |
Collapse
|
4
|
Tamiaki H, Tsuji K, Machida S, Teramura M, Miyatake T. Transformation of carbonyl to vinylidene groups in the π-conjugated peripheral substituent of chlorophyll derivatives by Tebbe reagent. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.01.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
5
|
Kim K, Yoshizato M, Sasaki SI, Tamiaki H. Synthesis of chlorophyll derivatives possessing an S-substituted thiomethyl group at the 3-position and their optical properties. Tetrahedron 2016. [DOI: 10.1016/j.tet.2015.11.066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
|
6
|
Miyatake T, Takamori Y, Yamaguchi K. Synthesis of zinc chlorin–spiropyran dyads and their self-aggregation properties. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2015.06.017] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
7
|
Kinoshita Y, Tamiaki H. Synthesis and self-aggregation of chlorophyll derivatives possessing a pyrazole ring at the C3 position. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2015.04.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
8
|
Tamiaki H, Tanaka T, Wang XF. Photophysical properties of synthetic monomer, dimer, trimer, and tetramer of chlorophyll derivatives and their application to organic solar cells. J Photochem Photobiol A Chem 2015. [DOI: 10.1016/j.jphotochem.2015.05.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
|