Photovoltaic effect in single-junction organic solar cell fabricated using vanadyl phthalocyanine soluble derivative
- 5 January 2015
- journal article
- Published by Emerald in Pigment & Resin Technology
- Vol. 44 (1), 26-32
- https://doi.org/10.1108/prt-01-2014-0006
Abstract
Purpose – The purpose of this paper is to study the optical and electrical characteristics of a single-junction solar cell based on a green-colour dye vanadyl 2,9,16, 23-tetraphenoxy-29H, 31H-phthalocyanine (VOPcPhO). The use of soluble vanadyl phthalocyanine derivative makes it very attractive for photovoltaic applications due to its tunable properties and high solubility. Design/methodology/approach – A photoactive layer of VOPcPhO has been sandwiched between indium tin oxide (ITO) and aluminium (Al) electrodes to produce a ITO/PEDOT:PSS/VOPcPhO/Al photovoltaic device. The VOPcPhO thin film is deposited by a simple spin coating technique. To obtain the optimal thickness for the solar cell device, different thicknesses of the photoactive layer, achieved by manipulating the spin rate, have been investigated. Findings – The device exhibited photovoltaic effect with the values of Jsc, Voc and FF equal to 5.26 × 10-6 A/cm2, 0.621 V and 0.33, respectively. The electronic parameters of the cell have been obtained from the analysis of current-voltage characteristics measured in dark. The values of ideality factor and barrier height were found to be 2.69 and 0.416 eV, respectively. The optical examination showed that the material is sensitive to light in the UV region between 270 nm and 410 nm, as well as in the visible spectrum within the range of 630 nm and 750 nm. Research limitations/implications – The solar cell based on a single layer of vanadyl phthalocyanine derivative results in low efficiency, which can be enhanced by introducing a variety of donor materials to form bulk heterojunction solar cells. Practical implications – The spin coating technique provides a simple, less expensive and effective approach for preparing thin films. Originality/value – A novel thin-film, single-junction organic solar cell, fabricated by using VOPcPhO, has been investigated for the first time ever. The vanadyl phthalocyanine derivative together with a donor material will have potential application for improved efficiency of the solar cells.Keywords
This publication has 35 references indexed in Scilit:
- Investigation of VOPcPhO as an acceptor material for bulk heterojunction solar cellsOrganic Electronics, 2012
- Spectroscopic and microscopic studies of thermally treated Vanadyl 2,9,16,23-tetraphenoxy-29H,31H-phthalocyanine thin filmsPhysica E: Low-dimensional Systems and Nanostructures, 2012
- CuPc based organic-inorganic hetero-junction with Au electrodesJournal of Semiconductors, 2010
- Fourier-transform infrared and UV–vis spectroscopes of nickel phthalocyanine thin filmsMaterials Chemistry and Physics, 2005
- Structural and optical properties of thermally evaporated zinc phthalocyanine thin filmsOptical Materials, 2004
- Organic photovoltaics: technology and marketSolar Energy Materials and Solar Cells, 2004
- Optical properties of thermally evaporated tin-phthalocyanine dichloride thin films, SnPcCl2Physica B: Condensed Matter, 2004
- Plastic Solar CellsAdvanced Functional Materials, 2001
- Optical and recording properties of copper phthalocyanine filmsMaterials Science and Engineering B, 1994
- The effect of the metal atom on the absorption spectra of phthalocyanine filmsThe Journal of Chemical Physics, 1982