Abstract
Imperatorin (molecular formula = C16H14O4, molecular mass = 270) an organic molecule was isolated from ethyl acetate extract of the root parts of the plant Prangos pabularia. The optical study was carried out by ultraviolet–visible spectroscopy, and this compound showed an indirect allowed transition. The optical band gap (E g ) was found around 3.75 eV. Photoluminescence shows various good emission bands. The frequency-dependent real part of the complex ac conductivity was found to follow the universal dielectric response: σ ac (ω) α ω s [where σ ac (ω) is the frequency-dependent total conductivity, ω is the frequency, and s is the frequency exponent]. From ac conductivity data analysis, correlated barrier hopping charge-transport mechanism is the dominant electrical transport process shown by this compound. The good emission, less absorption, wide band gap and good electrical properties shown by this compound project them as a bright choice for organic electronic devices.
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Acknowledgments
Author thanks DST (India) for providing him Fast Track Young Scientist project (SR/FTP/PS-148/2012). He also thanks the Director, IUAC, for support. We are also thankful to Dr. Javid A. Banday (Department of Chemistry, NIT, Srinagar) for providing organic compound for the current study.
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Mir, F.A. Spectrophotometric and electrical properties of imperatorin: an organic molecule. Appl. Phys. A 120, 1659–1663 (2015). https://doi.org/10.1007/s00339-015-9384-9
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DOI: https://doi.org/10.1007/s00339-015-9384-9