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Vol.2 , No. 2, Publication Date: Jun. 15, 2016, Page: 6-11
 Thin Films&description=Thin films of bulk heterojunction blend Ni-Phthalocyanine Tetrasulfonic acid tetrasodium salt and poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate) (NiPcTs/PEDOT:PSS) with different (PEDOT:PSS) concentrations are prepared by using spin coating technique with thickness 100nm deposited on pre-cleaned glass substrate. The variation in films absorption and optical energy gaps were studied at room temperature using UV-Visible spectra. The decreasing amount of PEDOT:PSS concentration, leads to increase optical absorbance of films with peak shifts position to high wave lengths side of wavelength spectra. The optical energy gap range of (NiPcTs/PEDOT:PSS) thin film between (1.7-1.9)eV for Q-band and (2.9-3.3)eV for B-band with direct energy band. The optical energy gap obtained from photoluminescence spectra for NiPcTs/PEDOT:PSS bulk heterojunction blend thin film with supply excitation wavelength 315 nm is very approach to energy gap obtained by UV-VIS spectrum. FTIR measurements for these bulk heterojunction blend thin films also carried out in this work and obtain good information about the bonds and their locations.&picture=http://www.aascit.org/aascit/decorators/img/journal/974.jpg)
| [1] | Morooj A. Abood , Physics Department, College of Science, Baghdad University, Baghdad, Iraq. |
| [2] | Ameer F. Abdulameer , Physics Department, College of Science, Baghdad University, Baghdad, Iraq. |
| [3] | Izzat M. AI-Essa , Physics Department, College of Science, Baghdad University, Baghdad, Iraq. |
| [4] | Falah I. Mustafa , Solar Energy Research Center, Renewable Energy Directorate, Ministry of Higher Education and Scientific Research, Baghdad, Iraq. |
Thin films of bulk heterojunction blend Ni-Phthalocyanine Tetrasulfonic acid tetrasodium salt and poly (3,4-ethylenedioxythiophene) poly (styrenesulfonate) (NiPcTs/PEDOT:PSS) with different (PEDOT:PSS) concentrations are prepared by using spin coating technique with thickness 100nm deposited on pre-cleaned glass substrate. The variation in films absorption and optical energy gaps were studied at room temperature using UV-Visible spectra. The decreasing amount of PEDOT:PSS concentration, leads to increase optical absorbance of films with peak shifts position to high wave lengths side of wavelength spectra. The optical energy gap range of (NiPcTs/PEDOT:PSS) thin film between (1.7-1.9)eV for Q-band and (2.9-3.3)eV for B-band with direct energy band. The optical energy gap obtained from photoluminescence spectra for NiPcTs/PEDOT:PSS bulk heterojunction blend thin film with supply excitation wavelength 315 nm is very approach to energy gap obtained by UV-VIS spectrum. FTIR measurements for these bulk heterojunction blend thin films also carried out in this work and obtain good information about the bonds and their locations.
Keywords
Organic, Semiconductor, Phthalocyanines, Optical Properties
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