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Irfan A, Kalam A, Al-Sehemi AG, Dubey M. Investigation of the Effect of Substituents on Electronic and Charge Transport Properties of Benzothiazole Derivatives. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248672. [PMID: 36557807 PMCID: PMC9781107 DOI: 10.3390/molecules27248672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 11/27/2022] [Accepted: 12/01/2022] [Indexed: 12/13/2022]
Abstract
A series of new benzothiazole-derived donor-acceptor-based compounds (Comp1-4) were synthesized and characterized with the objective of tuning their multifunctional properties, i.e., charge transport, electronic, and optical. All the proposed structural formulations (Comp1-4) were commensurate using FTIR, 1H NMR, 13C NMR, ESI-mass, UV-vis, and elemental analysis techniques. The effects of the electron-donating group (-CH3) and electron-withdrawing group (-NO2) on the optoelectronic and charge transfer properties were studied. The substituent effect on absorption was calculated at the TD-B3LYP/6-31+G** level in the gas and solvent phases. The effect of solvent polarity on the absorption spectra using various polar and nonpolar solvents, i.e., ethanol, acetone, DMF, and DMSO was investigated. Light was shed on the charge transport in benzothiazole compounds by calculating electron affinity, ionization potential, and reorganization energies. Furthermore, the synthesized compounds were used to prepare thin films on the FTO substrate to evaluate the charge carrier mobility and other related device parameters with the help of I-V characteristic measurements.
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Affiliation(s)
- Ahmad Irfan
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Research Center for Advanced Materials Science, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
- Correspondence: ; Tel.: +00-9661-7241-9481; Fax: +00-9661-7241-8426
| | - Abul Kalam
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Abdullah G. Al-Sehemi
- Department of Chemistry, College of Science, King Khalid University, P.O. Box 9004, Abha 61413, Saudi Arabia
| | - Mrigendra Dubey
- Soft Materials Research Laboratory, Discipline of Metallurgy Engineering and Materials Science, Indian Institute of Technology Indore, Indore 453552, India
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Kumar PR, Mothi E. New A3B-type naphthyl Zn(II porphyrins as DSSC dyes: Effect of anchoring group and co-adsorption for enhanced efficiency. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Motaung M, Onwudiwe DC, Lei W. Microwave-Assisted Synthesis of Bi 2S 3 and Sb 2S 3 Nanoparticles and Their Photoelectrochemical Properties. ACS OMEGA 2021; 6:18975-18987. [PMID: 34337237 PMCID: PMC8320100 DOI: 10.1021/acsomega.1c02249] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2021] [Accepted: 06/30/2021] [Indexed: 06/13/2023]
Abstract
Bi2S3 and Sb2S3 nanoparticles were prepared by microwave irradiation of single-source precursor complexes in the presence of ethylene glycol as a coordinating solvent. The as-synthesized nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) coupled with energy-dispersive X-ray (EDX), photoluminescence (PL), and UV-vis near-infrared (NIR) spectroscopy. Their electrochemical potential was examined in [Fe(CN)]4-/[Fe(CN)]3- by cyclic and square wave voltammetry (CV and SWV) and electrochemical impedance spectroscopy (EIS). GCEBi2S3 and GCESb2S3 exhibit promising electrochemical performance and a higher specific capacitance of about 700-800 F/g in [Fe(CN)]4-/[Fe(CN)]3. Thin films of Bi2S3 and Sb2S3 were successfully incorporated in the fabrication of solar cell devices. The fabricated device using Bi2S3 (under 100 mW/cm2) showed a power conversion efficiency (PCE) of 0.39%, with a V oc of 0.96 V, a J sc of 0.00228 mA/cm2, and an FF of 44%. In addition, the device exhibits nonlinear current density-voltage characteristics, indicating that Bi2S3 was experiencing a Schottky contact. The Sb2S3-based solar cell device showed no connection in the dark and under illumination. Therefore, no efficiency was recorded for the device using Sb2S3, which indicated the ohmic nature of the film. This might be due to the current leakage caused by poor coverage. The nanoparticles were found to induce similar responses to the conventional semiconductor nanomaterials in relation to photoelectrochemistry. The present study indicates that Bi2S3 and Sb2S3 nanoparticles are promising semiconductor materials for developing optoelectronic and electrochemical devices as the films experience Schottky and Ohmic contacts.
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Affiliation(s)
- Mathato
P. Motaung
- Material
Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty
of Natural and Agricultural Science, North-West
University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
- Department
of Chemistry, School of Physical and Chemical Sciences, Faculty of
Natural and Agricultural Science, North-West
University, Mafikeng
Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - Damian C. Onwudiwe
- Material
Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty
of Natural and Agricultural Science, North-West
University, Mafikeng Campus, Private Bag X2046, Mmabatho 2735, South Africa
- Department
of Chemistry, School of Physical and Chemical Sciences, Faculty of
Natural and Agricultural Science, North-West
University, Mafikeng
Campus, Private Bag X2046, Mmabatho 2735, South Africa
| | - Wei Lei
- Joint
International Research Laboratory of Information Display and Visualization,
School of Electronic Science and Engineering, Southeast University, Nanjing 210096, China
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Liu X, Yang J, Zhai X, Yan H, Zhang Y, Zhou L, Wan JG, Ge G, Wang G. A molecular device providing a remarkable spin filtering effect due to the central molecular stretch caused by lateral zigzag graphene nanoribbon electrodes. Phys Chem Chem Phys 2020; 22:6755-6762. [PMID: 32167125 DOI: 10.1039/d0cp00238k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through the density functional theory, we studied molecular devices composed of single tetrathiafulvalene (TTF) molecules connected with zigzag graphene nanoribbon electrodes by four different junctions. Interestingly, some devices have exhibited half-metallic behavior and can bring out a perfect spin filtering effect and remarkable negative differential resistance behavior. The current-voltage characteristics show that these four devices possess different spin current values. We found that all the TTF molecules were stretched due to interactions with the electrodes in the four devices. This leads to the Fermi levels of the three devices being down-shifted to the valence band; therefore, these devices exhibit half-metallic properties. The underlying mechanisms of the different spin current values are attributed to the different electron transmission pathways (via chemical bonds or through hopping between atoms). These results suggest that the device properties and conductance are controlled by different junctions. Our work predicts an effective way for designing high-performance spin-injected molecular devices.
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Affiliation(s)
- Xiaoyue Liu
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Jueming Yang
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Xingwu Zhai
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Hongxia Yan
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Yanwen Zhang
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Long Zhou
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China.
| | - Jian-Guo Wan
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, P. R. China and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Guixian Ge
- Key Laboratory of Ecophysics and Department of Physics, College of Science, Shihezi University, Shihezi 832003, P. R. China. and National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, P. R. China and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
| | - Guanghou Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, and Department of Physics, Nanjing University, Nanjing 210093, P. R. China and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, P. R. China
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Habib M, Ghosh NN, Sarkar R, Pramanik A, Sarkar P, Pal S. Controlling the charge transfer and recombination dynamics in hollow ZnO QD based dye sensitized solar cell: An insight from ab initio simulation. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.08.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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