Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP
The conjugated polymer poly {[2-[2′,5′-bis(2″-ethylhexyloxy)phenyl]-1,4-phenylenevinylene]-co-[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene]} (B-co-MP) has been proven to be an excellent laser medium with a high photochemical stability. Moreover, the impact of γ-irradiation on its optical an...
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MDPI AG
2022-02-01
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| Series: | Applied Sciences |
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| author | Osamah A. Aldaghri Basma A. El-Badry Mohammed Khalil M. Ali Khalid H. Ibnaouf |
| author_facet | Osamah A. Aldaghri Basma A. El-Badry Mohammed Khalil M. Ali Khalid H. Ibnaouf |
| author_sort | Osamah A. Aldaghri |
| collection | DOAJ |
| description | The conjugated polymer poly {[2-[2′,5′-bis(2″-ethylhexyloxy)phenyl]-1,4-phenylenevinylene]-co-[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene]} (B-co-MP) has been proven to be an excellent laser medium with a high photochemical stability. Moreover, the impact of γ-irradiation on its optical and chemical properties has been investigated. Herein, the spectral and amplified spontaneous emission (ASE) characteristics of B-co-MP at various concentrations under γ-irradiation doses are studied. Various concentrations of B-co-MP in tetrahydrofuran (THF) were prepared. The samples were irradiated with various γ-doses from 5 to 20 kGy using a Co-60 source at room temperature. The absorption, fluorescence, and ASE spectra were dramatically blue-shifted after the γ-irradiation. This indicates that the increment in the γ-irradiation dose led to a widening in the energy gap and reduction in the number of carbon atoms (N). The change in the spectral profiles could be attributed to chain conformational alterations and/or chain scission induced by the γ-irradiation. We anticipate this study to boost our understanding of optical and structural profiles of B-co-MP under various conditions, including γ-irradiation and the potential utility of this copolymer in a variety of applications. |
| first_indexed | 2024-03-10T00:11:23Z |
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| id | doaj.art-b0c0272203824a23a9b4d7f9354f645d |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T00:11:23Z |
| publishDate | 2022-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-b0c0272203824a23a9b4d7f9354f645d2023-11-23T16:00:24ZengMDPI AGApplied Sciences2076-34172022-02-01123160610.3390/app12031606Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MPOsamah A. Aldaghri0Basma A. El-Badry1Mohammed Khalil M. Ali2Khalid H. Ibnaouf3Department of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi ArabiaDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi ArabiaDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi ArabiaDepartment of Physics, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), Riyadh 13318, Saudi ArabiaThe conjugated polymer poly {[2-[2′,5′-bis(2″-ethylhexyloxy)phenyl]-1,4-phenylenevinylene]-co-[2-methoxy-5-(2′-ethylhexyloxy)-1,4-phenylenevinylene]} (B-co-MP) has been proven to be an excellent laser medium with a high photochemical stability. Moreover, the impact of γ-irradiation on its optical and chemical properties has been investigated. Herein, the spectral and amplified spontaneous emission (ASE) characteristics of B-co-MP at various concentrations under γ-irradiation doses are studied. Various concentrations of B-co-MP in tetrahydrofuran (THF) were prepared. The samples were irradiated with various γ-doses from 5 to 20 kGy using a Co-60 source at room temperature. The absorption, fluorescence, and ASE spectra were dramatically blue-shifted after the γ-irradiation. This indicates that the increment in the γ-irradiation dose led to a widening in the energy gap and reduction in the number of carbon atoms (N). The change in the spectral profiles could be attributed to chain conformational alterations and/or chain scission induced by the γ-irradiation. We anticipate this study to boost our understanding of optical and structural profiles of B-co-MP under various conditions, including γ-irradiation and the potential utility of this copolymer in a variety of applications.https://www.mdpi.com/2076-3417/12/3/1606conjugated copolymergamma-irradiationband-gap energythe number of carbon atoms |
| spellingShingle | Osamah A. Aldaghri Basma A. El-Badry Mohammed Khalil M. Ali Khalid H. Ibnaouf Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP Applied Sciences conjugated copolymer gamma-irradiation band-gap energy the number of carbon atoms |
| title | Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP |
| title_full | Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP |
| title_fullStr | Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP |
| title_full_unstemmed | Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP |
| title_short | Effect of Gamma Irradiation on the Optical Properties of the Conjugated Copolymer B-co-MP |
| title_sort | effect of gamma irradiation on the optical properties of the conjugated copolymer b co mp |
| topic | conjugated copolymer gamma-irradiation band-gap energy the number of carbon atoms |
| url | https://www.mdpi.com/2076-3417/12/3/1606 |
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