Study of π-conjugation effect of organic semiconductors on their optical parameters
Metal free organic semiconductor "7,16-bis(3,3-dimethyl-3H-indol-2-yl)-5,14-dihydrodibenzo [b,i][1,4,8,11] tetraazacyclotetradecine" and metal free with extended π-conjugation organic semiconductor "8,19-bis(3,3-dimethyl-3H-indol-2-yl)-6,17-dihydrodinaphthol [2,3-b:2′,3′-i][1,4,8,11]...
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my.um.eprints.181372017-11-07T05:42:42Z http://eprints.um.edu.my/18137/ Study of π-conjugation effect of organic semiconductors on their optical parameters Ahmad, Z. Zafar, Q. Touati, F. Shakoor, R.A. Q Science (General) QC Physics Metal free organic semiconductor "7,16-bis(3,3-dimethyl-3H-indol-2-yl)-5,14-dihydrodibenzo [b,i][1,4,8,11] tetraazacyclotetradecine" and metal free with extended π-conjugation organic semiconductor "8,19-bis(3,3-dimethyl-3H-indol-2-yl)-6,17-dihydrodinaphthol [2,3-b:2′,3′-i][1,4,8,11] tetraazacyclotetradecine have been synthesized and the effect of conjugation on their photovoltaic parameters have been investigated. The photo-physical study reveals band gaps of 2.61 eV for metal free and 2.16 eV for extended material. The HOMO/LUMO levels of the materials are calculated using cyclic voltammetry (CV) study. The open circuit voltages of metal free and extended materials in single layer photovoltaic cells are observed to be 0.72 and 0.73 under simulated solar light illumination (air mass 1.5 G, 100 mW/cm2), respectively. The short circuit current in the extended materials is found to be more than ∼1.5 times higher the metal free material. Elsevier 2016 Article PeerReviewed Ahmad, Z. and Zafar, Q. and Touati, F. and Shakoor, R.A. (2016) Study of π-conjugation effect of organic semiconductors on their optical parameters. Optical Materials, 54. pp. 94-97. ISSN 0925-3467 https://doi.org/10.1016/j.optmat.2016.02.009 doi:10.1016/j.optmat.2016.02.009 |
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Q Science (General) QC Physics Ahmad, Z. Zafar, Q. Touati, F. Shakoor, R.A. Study of π-conjugation effect of organic semiconductors on their optical parameters |
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Metal free organic semiconductor "7,16-bis(3,3-dimethyl-3H-indol-2-yl)-5,14-dihydrodibenzo [b,i][1,4,8,11] tetraazacyclotetradecine" and metal free with extended π-conjugation organic semiconductor "8,19-bis(3,3-dimethyl-3H-indol-2-yl)-6,17-dihydrodinaphthol [2,3-b:2′,3′-i][1,4,8,11] tetraazacyclotetradecine have been synthesized and the effect of conjugation on their photovoltaic parameters have been investigated. The photo-physical study reveals band gaps of 2.61 eV for metal free and 2.16 eV for extended material. The HOMO/LUMO levels of the materials are calculated using cyclic voltammetry (CV) study. The open circuit voltages of metal free and extended materials in single layer photovoltaic cells are observed to be 0.72 and 0.73 under simulated solar light illumination (air mass 1.5 G, 100 mW/cm2), respectively. The short circuit current in the extended materials is found to be more than ∼1.5 times higher the metal free material. |
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Article |
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Ahmad, Z. Zafar, Q. Touati, F. Shakoor, R.A. |
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Ahmad, Z. Zafar, Q. Touati, F. Shakoor, R.A. |
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Ahmad, Z. |
title |
Study of π-conjugation effect of organic semiconductors on their optical parameters |
title_short |
Study of π-conjugation effect of organic semiconductors on their optical parameters |
title_full |
Study of π-conjugation effect of organic semiconductors on their optical parameters |
title_fullStr |
Study of π-conjugation effect of organic semiconductors on their optical parameters |
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Study of π-conjugation effect of organic semiconductors on their optical parameters |
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study of π-conjugation effect of organic semiconductors on their optical parameters |
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Elsevier |
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2016 |
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http://eprints.um.edu.my/18137/ https://doi.org/10.1016/j.optmat.2016.02.009 |
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