Design of high efficiency organic solar cell with light trapping.

We have designed a high efficiency organic solar cell with light trapping structure on transference cylindrical substrate. An electrical and optical simulation of the light trapping structure has been performed on the basis of finite element and transfer matrix formalism methods. Absorption spectrum, internal quantum efficiency, external quantum efficiency, maximum power output and efficiency of the organic solar cell are simulated and presented in terms of three variables: the height, diameter of the glass substrate and the thickness of the organic active layer. The efficiency of the proposed organic solar cell with light trapping structure is enhanced by a factor of 2 than the similar structure on the flat plain glass substrate. The optimum organic active layer thickness to achieve the highest efficiency is shifted from 65 to 20 nm. Finally, we have investigated the effect of light incident angle on the performance of the proposed cell structure.

[1]  Wanyi Nie,et al.  The Optics of Organic Photovoltaics: Fiber-Based Devices , 2010, IEEE Journal of Selected Topics in Quantum Electronics.

[2]  L. S. Roman,et al.  Modeling photocurrent action spectra of photovoltaic devices based on organic thin films , 1999 .

[3]  Dieter Meissner,et al.  Nanoscale Morphology of Conjugated Polymer/Fullerene‐Based Bulk‐ Heterojunction Solar Cells , 2004 .

[4]  D. Carroll,et al.  Tube-based geometries for organic photovoltaics , 2010 .

[5]  David L. Carroll,et al.  Optical geometries for fiber-based organic photovoltaics , 2007 .

[6]  Jenny Nelson,et al.  Morphology evolution via self-organization and lateral and vertical diffusion in polymer:fullerene solar cell blends. , 2008, Nature materials.

[7]  Wei Zhou,et al.  Photovoltaic–thermal solar energy collectors based on optical tubes , 2011 .

[8]  Shijun Jia,et al.  Polymer–Fullerene Bulk‐Heterojunction Solar Cells , 2009, Advanced materials.

[9]  Michael D. McGehee,et al.  Polymer-based solar cells , 2007 .

[10]  Klaus Meerholz,et al.  Controlling Morphology in Polymer–Fullerene Mixtures , 2008 .

[11]  Olle Inganäs,et al.  Fabrication of a light trapping system for organic solar cells , 2009 .

[12]  C. Brabec,et al.  Solar Power Wires Based on Organic Photovoltaic Materials , 2009, Science.

[13]  Xiong Gong,et al.  Thermally Stable, Efficient Polymer Solar Cells with Nanoscale Control of the Interpenetrating Network Morphology , 2005 .

[14]  R. Morf,et al.  Submicrometer gratings for solar energy applications. , 1995, Applied optics.

[15]  Yasha Yi,et al.  Efficiency enhancement in Si solar cells by textured photonic crystal back reflector , 2006 .

[16]  Jin Jang,et al.  Effects of thermal annealing of polymer:fullerene photovoltaic solar cells for high efficiency , 2010 .

[17]  R. Zhang,et al.  Photocurrent characteristics of two-dimensional-electron-gas-based AlGaN/GaN metal-semiconductor-metal photodetectors , 2010 .

[18]  Thomas Kirchartz,et al.  Efficiency Limits of Organic Bulk Heterojunction Solar Cells , 2009 .

[19]  Jeffrey E. Cotter,et al.  Optical intensity of light in layers of silicon with rear diffuse reflectors , 1998 .