Add time:08/18/2019         Source:sciencedirect.com

Condensation reaction of 6-formylvisnagin (1) with 1-amino-4,6-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (2) afforded the novel 1-{[(4-methoxy-5-oxo-5H-furo[3,2-g]chromen-6-yl)methylidene]amino}-4,6-dimethyl-2-oxo-1,2-dihydro-pyridine-3-carbonitrile (MFCMP). The structure of this compound was deduced on the basis of it's corrected analytical and various spectral data. The parameters of the structure were extracted by using the DFT/B3LYP/ 6-311G (d,p) premise set. Besides, TD-DFT estimations were used for the interpretation of the electronic absorption. The experimental optical absorption results indicated an allowed direct transition at 2.29 eV, corresponding to the optical band gap of the synthesized compound film, as well as Urbach tail width with the energy of 0.51eV. The electrical characteristics of the heterojunction based MFCMP were accomplished in dark and under various intensity levels of illuminations. Both values of the photocurrent and photosensitivity were found to increase with increasing illumination intensity which gives confirmation for the applicability of the studied heterojunction for the optoelectronic devices.

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