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Tuan TTA, Tung HT, Chinh TTN, Hung PT, Dang HP. Enhanced photoelectrochemical performance of quantum dot-sensitized solar cell using Cu 2+ co-doped CdS and CdSe nanoscrystals. ROYAL SOCIETY OPEN SCIENCE 2024; 11:231343. [PMID: 38298403 PMCID: PMC10827437 DOI: 10.1098/rsos.231343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Accepted: 01/05/2024] [Indexed: 02/02/2024]
Abstract
Today, nanoscrystals are researched and developed very quickly because of their advantages in many areas of life. One of the potential applications is quantum dot-sensitized solar cells. This is a green, clean, environmentally friendly cell, and has been studied by scientists since 2000. In this study, we fabricated photoanodes with Cu2+ ions co-doped into cadmium sulfide (CdS) and cadmium selenide (CdSe) nanoscrystals by successive ionic layer adsorption and reaction, and chemical bath deposition methods to improve absorption spectral intensity of films. The results showed that the absorption intensity increased by eight times compared with our previous results on Cu2+ ions doped with CdSe nanoscrystals. The CdS:Cu2+ film is optimized at 2% doping, the efficiency is 4.6819%, and the current density is 27.3501 mA.cm-2, which is higher when compared with the Cu2+ ion only doped into the CdSe quantum dot (19.915 mA.cm-2). In addition, the composition of the photoanode was determined by surface and cross-sectional field-emission scanning electron microscope images, and the structure of the film was determined by X-ray diffraction, energy-dispersive X-ray spectroscopy mapping and X-ray photoelectron spectroscopy. Finally, the film's optical properties were studied by ultraviolet-visible spectroscopy, photoluminescence spectroscopy and electrochemical properties by electrochemical impedance spectroscopy. The results obtained have been discussed and presented in great detail.
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Affiliation(s)
- Thi Tran Anh Tuan
- School of Basic Sciences, Tra Vinh University, Tra Vinh Province, Vietnam
| | - Ha Thanh Tung
- Faculty of Basic Sciences, Vinh Long University of Technology Education, Vinh Long City, Vietnam
| | | | - Phan Thanh Hung
- School of Basic Sciences, Tra Vinh University, Tra Vinh Province, Vietnam
| | - Huu Phuc Dang
- Faculty of Fundamental Science, Industrial University of Ho Chi Minh City, No. 12 Nguyen Van Bao, Ward 4, Go Vap District, Ho Chi Minh City, 700000, Vietnam
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Diaz-Angulo J, Porras J, Mueses M, Torres-Palma R, Hernandez-Ramirez A, Machuca-Martinez F. Coupling of heterogeneous photocatalysis and photosensitized oxidation for diclofenac degradation: role of the oxidant species. J Photochem Photobiol A Chem 2019. [DOI: 10.1016/j.jphotochem.2019.112015] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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CdSe/TiO2 nanotubes for enhanced photoelectrochemical activity under solar illumination: Influence of soaking time in CdSe bath solution. Chem Phys Lett 2019. [DOI: 10.1016/j.cplett.2018.10.054] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Combining dc and ac electrochemical characterization with micro Raman analysis on industrial DSCs under accelerated thermal stress. Electrochim Acta 2018. [DOI: 10.1016/j.electacta.2018.03.125] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Martín C, Ziółek M, Douhal A. Ultrafast and fast charge separation processes in real dye-sensitized solar cells. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS 2016. [DOI: 10.1016/j.jphotochemrev.2015.12.001] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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6
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Finger LH, Sundermeyer J. Halide-Free Synthesis of Hydrochalcogenide Ionic Liquids of the Type [Cation][HE] (E=S, Se, Te). Chemistry 2016; 22:4218-30. [DOI: 10.1002/chem.201504577] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Indexed: 11/08/2022]
Affiliation(s)
- Lars H. Finger
- Fachbereich Chemie and Materials Science Center; Philipps-Universität Marburg; Hans-Meerwein-Str. 4 35032 Marburg Germany
| | - Jörg Sundermeyer
- Fachbereich Chemie and Materials Science Center; Philipps-Universität Marburg; Hans-Meerwein-Str. 4 35032 Marburg Germany
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Li Z, Yu L, Liu Y, Sun S. Efficient quantum dot-sensitized solar cell based on CdSxSe1-x/Mn-CdS/TiO2 nanotube array electrode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2014.11.197] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Zhang M, Xu Y, Lv J, Yang L, Jiang X, He G, Song X, Sun Z. Capability of coupled CdSe/TiO2 heterogeneous structure for photocatalytic degradation and photoconductivity. NANOSCALE RESEARCH LETTERS 2014; 9:636. [PMID: 25489287 PMCID: PMC4257061 DOI: 10.1186/1556-276x-9-636] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2014] [Accepted: 11/13/2014] [Indexed: 05/27/2023]
Abstract
Highly ordered TiO2 nanotube arrays (TiO2-NTAs), with a uniform tube size on titanium substrate, were obtained by means of reoxidation and annealing. A composite structure, CdSe quantum dots@TiO2 nanotube arrays (CdSe QDs@TiO2-NTAs), was fabricated by assembling CdSe quantum dots into TiO2-NTAs via cyclic voltammetry electrochemical deposition. The X-ray diffractometer (XRD), field-emission scanning electron microscope (SEM), and transmission electron microscope (TEM) were carried out for the determination of the composition and structure of the tubular layers. Optical properties were investigated by ultraviolet-visible spectrophotometer (UV-Vis). Photocurrent response under visible light illumination and photocatalytic activity of samples by degradation of methyl orange were measured. The results demonstrated that the photo absorption of the composite film shifted to the visible region, and the photocurrent intensity was greatly enhanced due to the assembly of CdSe QDs. Especially, photocurrent achieved a maximum of 1.853 μA/cm(2) after five voltammetry cycles of all samples. After irradiation under ultra violet-visible light for 2 h, the degradation rate of composition to methyl orange (MO) reached 88.20%, demonstrating that the CdSe QDs@TiO2-NTAs exhibited higher photocatalytic activity.
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Affiliation(s)
- Miao Zhang
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
| | - Yanyan Xu
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
| | - Jianguo Lv
- School of Electronic and Information Engineering, Hefei Normal University, 373 Huangshan Rd., Hefei 230601, Peoples’ Republic of China
| | - Lei Yang
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
- Army Officer Academy, 451 Huangshan Rd., Hefei 230031, Peoples’ Republic of China
| | - Xishun Jiang
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
- School of Electronic and Electrical Engineering, Chuzhou University, 1528 Fengle Rd., Chuzhou 239000, Peoples’ Republic of China
| | - Gang He
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
| | - Xueping Song
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
| | - Zhaoqi Sun
- School of Physics and Material Science, Anhui University, 111 Jiulong Rd., Hefei 230601, Peoples’ Republic of China
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Li Z, Yu L, Liu Y, Sun S. CdS/CdSe Quantum dots Co-sensitized TiO2 Nanowire/Nanotube Solar Cells with Enhanced Efficiency. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.02.145] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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10
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Spencer BF, Cliffe MJ, Graham DM, Hardman SJO, Seddon EA, Syres KL, Thomas AG, Sirotti F, Silly MG, Akhtar J, O'Brien P, Fairclough SM, Smith JM, Chattopadhyay S, Flavell WR. Dynamics in next-generation solar cells: time-resolved surface photovoltage measurements of quantum dots chemically linked to ZnO (101̄0). Faraday Discuss 2014; 171:275-98. [DOI: 10.1039/c4fd00019f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
The charge dynamics at the surface of the transparent conducting oxide and photoanode material ZnO are investigated in the presence and absence of light-harvesting colloidal quantum dots (QDs). The time-resolved change in surface potential upon photoexcitation has been measured in the m-plane ZnO (101̄0) using a laser pump-synchrotron X-ray probe methodology. By varying the oxygen annealing conditions, and hence the oxygen vacancy concentration of the sample, we find that dark carrier lifetimes at the ZnO surface vary from hundreds of μs to ms timescales, i.e. a persistent photoconductivity (PPC) is observed. The highly-controlled nature of our experiments under ultra-high vacuum (UHV), and the use of band-gap and sub-band-gap photoexcitation, allow us to demonstrate that defect states ca. 340 meV above the valence band edge are directly associated with the PPC, and that the PPC mediated by these defects dominates over the oxygen photodesorption mechanism. These observations are consistent with the hypothesis that ionized oxygen vacancy states are responsible for the PPC in ZnO. The effect of chemically linking two colloidal QD systems (type I PbS and type II CdS–ZnSe) to the surface has also been investigated. Upon deposition of the QDs onto the surface, the dark carrier lifetime and the surface photovoltage are reduced, suggesting a direct injection of charge carriers into the ZnO conduction band. The results are discussed in the context of the development of next-generation solar cells.
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Affiliation(s)
- Ben F. Spencer
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
- The Cockcroft Institute
- Sci-Tech Daresbury, Keckwick Lane, Daresbury
| | - Matthew J. Cliffe
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
- The Cockcroft Institute
- Sci-Tech Daresbury, Keckwick Lane, Daresbury
| | - Darren M. Graham
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
| | - Samantha J. O. Hardman
- Manchester Institute of Biotechnology
- Faculty of Life Sciences
- University of Manchester
- Manchester M1 7DN, United Kingdom
| | - Elaine A. Seddon
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
- The Cockcroft Institute
- Sci-Tech Daresbury, Keckwick Lane, Daresbury
| | - Karen L. Syres
- School of Chemistry
- The University of Nottingham
- Nottingham NG7 2RD, United Kingdom
| | - Andrew G. Thomas
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
| | | | | | - Javeed Akhtar
- Department of Chemistry
- University of Manchester
- Manchester M13 9PL, United Kingdom
- Department of Physics
- Nano-Science & Materials Synthesis Laboratory
| | - Paul O'Brien
- Department of Chemistry
- University of Manchester
- Manchester M13 9PL, United Kingdom
| | | | - Jason M. Smith
- Department of Materials
- University of Oxford
- Oxford OX1 3PH, United Kingdom
| | - Swapan Chattopadhyay
- The Cockcroft Institute
- Sci-Tech Daresbury, Keckwick Lane, Daresbury
- Warrington WA4 4AD, United Kingdom
| | - Wendy R. Flavell
- School of Physics and Astronomy and the Photon Science Institute
- The University of Manchester
- , United Kingdom
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Chen C, Zhai Y, Li C, Li F. Improving the efficiency of cadmium sulfide-sensitized titanium dioxide/indium tin oxide glass photoelectrodes using silver sulfide as an energy barrier layer and a light absorber. NANOSCALE RESEARCH LETTERS 2014; 9:605. [PMID: 25411566 PMCID: PMC4236068 DOI: 10.1186/1556-276x-9-605] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Accepted: 10/19/2014] [Indexed: 05/13/2023]
Abstract
Cadmium sulfide (CdS) and silver sulfide (Ag2S) nanocrystals are deposited on the titanium dioxide (TiO2) nanocrystalline film on indium tin oxide (ITO) substrate to prepare CdS/Ag2S/TiO2/ITO photoelectrodes through a new method known as the molecular precursor decomposition method. The Ag2S is interposed between the TiO2 nanocrystal film and CdS nanocrystals as an energy barrier layer and a light absorber. As a consequence, the energy conversion efficiency of the CdS/Ag2S/TiO2/ITO electrodes is significantly improved. Under AM 1.5 G sunlight irradiation, the maximum efficiency achieved for the CdS(4)/Ag2S/TiO2/ITO electrode is 3.46%, corresponding to an increase of about 150% as compared to the CdS(4)/TiO2/ITO electrode without the Ag2S layer. Our experimental results show that the improved efficiency is mainly due to the formation of Ag2S layer that may increase the light absorbance and reduce the recombination of photogenerated electrons with redox ions from the electrolyte.
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Affiliation(s)
- Chong Chen
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, People's Republic of China
- School of Physics and Electronics, Henan University, Kaifeng 475004, People's Republic of China
| | - Yong Zhai
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, People's Republic of China
- School of Physics and Electronics, Henan University, Kaifeng 475004, People's Republic of China
| | - Chunxi Li
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, People's Republic of China
- School of Physics and Electronics, Henan University, Kaifeng 475004, People's Republic of China
| | - Fumin Li
- Henan Key Laboratory of Photovoltaic Materials, Henan University, Kaifeng 475004, People's Republic of China
- School of Physics and Electronics, Henan University, Kaifeng 475004, People's Republic of China
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