Comparative study of organic thin film tandem solar cells in alternative geometries

Optical modeling of one folded tandem solar cell and four types of stacked tandem solar cells has been performed using the finite element method and the transfer matrix method for the folded cell and the stacked cells, respectively. The results are analyzed by comparing upper limits for short circuit currents and power conversion efficiencies. In the case of serial connected tandems all of the five cell types may be compared, and we find that the folded cells are comparable to stacked tandem cells in terms of currents and power conversion efficiencies.

[1]  Mats Andersson,et al.  High Quantum Efficiency Polythiophene , 1998 .

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

[3]  L. S. Roman,et al.  Quantum efficiency of exciton-to-charge generation in organic photovoltaic devices , 2001 .

[4]  Ingo Riedel,et al.  Effect of Temperature and Illumination on the Electrical Characteristics of Polymer–Fullerene Bulk‐Heterojunction Solar Cells , 2004 .

[5]  P. Würfel,et al.  Improved spectral robustness of triple tandem solar cells by combined series/parallel interconnection , 2004 .

[6]  O. Inganäs,et al.  Optical modelling of a layered photovoltaic device with a polyfluorene derivative/fullerene as the active layer , 2004 .

[7]  O. Inganäs,et al.  Optical optimization of polyfluorene-fullerene blend photodiodes , 2005 .

[8]  A. Gombert,et al.  Functional microprism substrate for organic solar cells , 2006 .

[9]  Gang Li,et al.  Efficient light harvesting in multiple-device stacked structure for polymer solar cells , 2006 .

[10]  Mats Andersson,et al.  Low‐Bandgap Alternating Fluorene Copolymer/Methanofullerene Heterojunctions in Efficient Near‐Infrared Polymer Solar Cells , 2006 .

[11]  Nils-Krister Persson,et al.  Organic tandem solar cells—modelling and predictions , 2006 .

[12]  Mm Martijn Wienk,et al.  Solution‐Processed Organic Tandem Solar Cells , 2006 .

[13]  R. Koeppe,et al.  Enhancing photon harvesting in organic solar cells with luminescent concentrators , 2007 .

[14]  D. Law,et al.  40% efficient metamorphic GaInP∕GaInAs∕Ge multijunction solar cells , 2007 .

[15]  Christoph J. Brabec,et al.  Design of efficient organic tandem cells: On the interplay between molecular absorption and layer sequence , 2007 .

[16]  Nils-Krister Persson,et al.  Surface plasmon increase absorption in polymer photovoltaic cells , 2007 .

[17]  D. Sharma,et al.  Improvements of fill factor in solar cells based on blends of polyfluorene copolymers as electron donors , 2007 .

[18]  O. Inganäs,et al.  Optical limitations in thin-film low-band-gap polymer/fullerene bulk heterojunction devices , 2007 .

[19]  Viktor Andersson,et al.  Folded reflective tandem polymer solar cell doubles efficiency , 2007 .

[20]  N. E. Coates,et al.  Efficient Tandem Polymer Solar Cells Fabricated by All-Solution Processing , 2007, Science.

[21]  P. Blom,et al.  Solution-processed organic tandem solar cells with embedded optical spacers , 2007 .

[22]  Mm Martijn Wienk,et al.  Double and triple junction polymer solar cells processed from solution , 2007 .

[23]  Viktor Andersson,et al.  Optical modeling of a folded organic solar cell , 2008 .