화학공학소재연구정보센터
Materials Chemistry and Physics, Vol.178, 49-56, 2016
Synthesis and characterization of a new organic semiconductor material
The objective of this study is to create an ideal mixture of Acetaminophen/Curcumin leading to a new and improved semiconductor material, by a study of the electrical, thermal and optical properties. This new material will be compared with existing semiconductor technology to discuss its viability within the industry. The electrical properties were investigated using complex impedance spectroscopy and optical properties were studied by means of UV-Vis spectrophotometry. The electric conductivity sigma, the dielectric constant epsilon(r), the activation energy E-a, the optical transmittance T and the gap energy E-g have been investigated in order to characterize our organic material. The electrical conductivity of the material is approximately 10(-5) S/m at room temperature, increasing the temperature causes sigma to increase exponentially to approximately 10(-4) S/m. The activation energy obtained for the material is equal to 0.49 +/- 0.02 ev. The optical absorption spectra show that the investigating material has absorbance in the visible range with a maximum wavelength (lambda(max)) 424 nm. From analysis, the absorption spectra it was found the optical band gap equal to 2.6 +/- 0.02 eV and 2.46 +/- 0.02 eV for the direct and indirect transition, respectively. In general, the study shows that the developed material has characteristics of organic semiconductor material that has a promising future in the field of organic electronics and their potential applications, e.g., photovoltaic cells. (C) 2016 Elsevier B.V. All rights reserved.