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Ouedraogo S, Coulibaly T, Meunier-Prest R, Bayo-Bangoura M, Bouvet M. p-Type and n-type conductometric behaviors of octachloro-metallophthalocyanine-based heterojunctions, the key role of the metal. J PORPHYR PHTHALOCYA 2020. [DOI: 10.1142/s1088424619501669] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In the present work, we determined the electrical properties of octachlorinated metallophthalocyanines with Co(II) and Cu(II) ions as metal centers. We engaged them in heterojunctions, with lutetium bisphthalocyanine as a partner. Surprisingly, cobalt and copper complexes show opposite behaviors, the first being an [Formula: see text]-type material whereas the latter is a [Formula: see text]-type material, as deduced from the response of the heterojunctions towards ammonia; showing the unusual key role played by the metal center. While the LuPc[Formula: see text]/Cu(Cl[Formula: see text]Pc) complex exhibits a negative response to ammonia, the LuPc[Formula: see text]/Co(Cl[Formula: see text]Pc) complex exhibits a positive response to ammonia, with a sensitivity of 1.47% ppm[Formula: see text] at concentrations lower than 10 ppm and a limit of detection of 250 ppb. All the devices operate at room temperature and in real atmosphere.
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Affiliation(s)
- Seydou Ouedraogo
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), Université Bourgogne Franche-Comté, UMR CNRS 6302, 9 Avenue A. Savary, F-21078 Dijon, France
- Laboratoire de Chimie Moléculaire et de Matériaux, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - Tahirou Coulibaly
- Laboratoire de Chimie Moléculaire et de Matériaux, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - Rita Meunier-Prest
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), Université Bourgogne Franche-Comté, UMR CNRS 6302, 9 Avenue A. Savary, F-21078 Dijon, France
| | - Mabinty Bayo-Bangoura
- Laboratoire de Chimie Moléculaire et de Matériaux, Université Joseph Ki-Zerbo, 03 BP 7021, Ouagadougou, Burkina Faso
| | - Marcel Bouvet
- Institut de Chimie Moléculaire de l’Université de Bourgogne (ICMUB), Université Bourgogne Franche-Comté, UMR CNRS 6302, 9 Avenue A. Savary, F-21078 Dijon, France
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Sadasivuni KK, Cabibihan JJ, Deshmukh K, Goutham S, Abubasha MK, Gogoi JP, Klemenoks I, Sakale G, Sekhar BS, Rama Sreekanth PS, Rao KV, Knite M. A review on porous polymer composite materials for multifunctional electronic applications. POLYM-PLAST TECH MAT 2018. [DOI: 10.1080/03602559.2018.1542729] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
| | - John-John Cabibihan
- Mechanical and Industrial Engineering Department, Qatar University, Doha, Qatar
| | - Kalim Deshmukh
- Department of Physics, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai TN, India
| | - Solleti Goutham
- Centre for Nano Science and Technology, JNT University Hyderabad, Kukatpally, Hyderabad, Telangana State, India
| | | | | | - Igors Klemenoks
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
| | - Gita Sakale
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
| | - Bhogilla Satya Sekhar
- Faculty of Mechanical Engineering, Indian Institute of Information Technology Design and Manufacturing, Kurnool, Andhra Pradesh, India
| | - P. S. Rama Sreekanth
- Department of Mechanical Engineering, VIT-AP University, Amaravati, Guntur, Andhra Pradesh, India
| | - Kalagadda Venkateswara Rao
- Centre for Nano Science and Technology, JNT University Hyderabad, Kukatpally, Hyderabad, Telangana State, India
| | - Maris Knite
- Institute of Technical Physics, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, LV, Latvia
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Covalent functionalization of reduced graphene oxide with porphyrin by means of diazonium chemistry for nonlinear optical performance. Sci Rep 2016; 6:23325. [PMID: 27011265 PMCID: PMC4806317 DOI: 10.1038/srep23325] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2015] [Accepted: 02/22/2016] [Indexed: 11/29/2022] Open
Abstract
Reduced graphene oxide (RGO)-porphyrin (TPP) nanohybrids (RGO-TPP 1 and RGO-TPP 2) were prepared by two synthetic routes that involve functionalization of the RGO using diazonium salts. The microscopic structures, morphology, photophysical properties and nonlinear optical performance of the resultant RGO-TPP nanohybrids were investigated. The covalent bonding of the porphyrin-functionalized-RGO nanohybrid materials was confirmed by Fourier transform infrared spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, and thermogravimetric analysis. Attachment of the porphyrin units to the surface of the RGO by diazotization significantly improves the solubility and ease of processing of these RGO-based nanohybrid materials. Ultraviolet/visible absorption and steady-state fluorescence studies indicate considerable π-π interactions and effective photo-induced electron and/or energy transfer between the porphyrin moieties and the extended π-system of RGO. The nonlinear optical properties of RGO-TPP 1 and RGO-TPP 2 were investigated by open-aperture Z-scan measurements at 532 nm with both 4 ns and 21 ps laser pulses, the results showing that the chemical nanohybrids exhibit improved nonlinear optical properties compared to those of the benchmark material C60, and the constituent RGO or porphyrins.
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