Photovoltaic Properties of Polymer based Bulk Heterojunction Solar Cell Composed of Poly[3-(2,5-Dioctyle-Pheneyl) Thiophene](Pdopt) and (PCBM)
No Thumbnail Available
Date
2006-07
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Addis Ababa University
Abstract
The Theme of this thesis is to characterize polymer based photovoltaic cell using the
J-V measurements and impedance spectroscopy. Absorption spectra of pure (neutral)
poly[3-(2,5-dioctyle-pheneyl) thiophene](PDOPT) study showed that the optical
band gap of this polymer about 2eV, indicating that it is in the range of inorganic
semiconductors. The sandwich structure ITO/PEDOT:PSS/PDOPT:PCBM/Al were
utilized to fabricate the device. All the devices which are tested in this work, are
bulk heterojunction that are composed of the p-type , PDOPT and n-type fullerene
derivative, (phenyl-(6,6’)-c61)-butyric acid methyl ester ( PCBM )blend. The J-V
measurements under both illumination dark indicated that the typical diode rectification
property with rectification ratio 1.5× 103 at ( ±1.8V ) Such a device of blend
ratio 1:2 (PDOPT:PCBM) expected to show a photovoltaic behavior with a power
conversion efficiency about 0.028 % under 100mWcm−2
Description
Keywords
Photovoltaic Properties of Polymer