Air-stable inverted flexible polymer solar cells using zinc oxide nanoparticles as an electron selective layer

The performance and stability of unencapsulated inverted bulk-heterojunction solar cells with zinc oxide (ZnO) made by different processes as the electron selective contact are compared to conventional bulk-heterojunction solar cells. The low temperature processed inverted devices using ZnO nanoparticles on indium tin oxide plastic substrates showed high power conversion efficiency of ∼3.3%. This inverted device structure possessed much better stability under ambient conditions retaining over 80% of its original conversion efficiency after 40days while the conventional one showed negligible photovoltaic activity after 4days. This is due to the improved stability at the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate)/Ag interface.

[1]  Osamu Yoshikawa,et al.  High performance polythiophene/fullerene bulk-heterojunction solar cell with a TiOx hole blocking layer , 2007 .

[2]  Frederik C. Krebs,et al.  Transparent anodes for polymer photovoltaics: Oxygen permeability of PEDOT , 2007 .

[3]  Yuning Li,et al.  Stable, solution-processed, high-mobility ZnO thin-film transistors. , 2007, Journal of the American Chemical Society.

[4]  David L. Carroll,et al.  Roles of donor and acceptor nanodomains in 6% efficient thermally annealed polymer photovoltaics , 2007 .

[5]  Sean E. Shaheen,et al.  Inverted bulk-heterojunction organic photovoltaic device using a solution-derived ZnO underlayer , 2006 .

[6]  C. Brabec,et al.  Plastic Solar Cells , 2001 .

[7]  Christoph J. Brabec,et al.  Highly efficient inverted organic photovoltaics using solution based titanium oxide as electron selective contact , 2006 .

[8]  Zhiqiang Gao,et al.  Blocking reactions between indium-tin oxide and poly (3,4-ethylene dioxythiophene):poly(styrene sulphonate) with a self-assembly monolayer , 2002 .

[9]  Yang Yang,et al.  High-efficiency solution processable polymer photovoltaic cells by self-organization of polymer blends , 2005 .

[10]  Alex K.-Y. Jen,et al.  Self-assembled monolayer modified ZnO/metal bilayer cathodes for polymer/fullerene bulk-heterojunction solar cells , 2008 .

[11]  P. Jørgensen,et al.  Interconversion of diborane(4) isomers , 1992 .

[12]  Xiaoniu Yang,et al.  Hybrid zinc oxide conjugated polymer bulk heterojunction solar cells. , 2005, The journal of physical chemistry. B.

[13]  Wai-Yeung Wong,et al.  Metallated conjugated polymers as a new avenue towards high-efficiency polymer solar cells. , 2007, Nature materials.

[14]  A J Heeger,et al.  Efficiency enhancement in low-bandgap polymer solar cells by processing with alkane dithiols. , 2007, Nature materials.

[15]  W. R. Salaneck,et al.  Conjugated polymer surfaces and interfaces: a mini-review and some new results , 1996 .

[16]  C. Grimes,et al.  High efficiency double heterojunction polymer photovoltaic cells using highly ordered TiO2 nanotube arrays , 2007 .

[17]  Jin Young Kim,et al.  Air‐Stable Polymer Electronic Devices , 2007 .

[18]  Ghassan E. Jabbour,et al.  Organic-Based Photovoltaics: Toward Low-Cost Power Generation , 2005 .

[19]  F. Krebs,et al.  Analysis of the failure mechanism for a stable organic photovoltaic during 10 000 h of testing , 2007 .

[20]  M.J.A. de Voigt,et al.  Stability of the interface between indium-tin-oxide and poly(3,4-ethylenedioxythiophene)/poly(styrenesulfonate) in polymer light-emitting diodes , 2000 .

[21]  Mm Martijn Wienk,et al.  The use of ZnO as optical spacer in polymer solar cells: Theoretical and experimental study , 2007 .

[22]  D. Vanmaekelbergh,et al.  Staircase in the electron mobility of a ZnO quantum dot assembly due to shell filling. , 2002, Physical review letters.

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