Espinosa Martinez, Nieves

Hösel, Markus

Jørgensen, Mikkel

Krebs, Frederik C

Søndergaard, Roar R.

Online Research Database In Technology

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Downloaded from orbit.dtu.dk on: Dec 17, 2017Fully printed multi square meter large organic solar cell modules for real energyproductionHösel, Markus; Søndergaard, Roar R.; Espinosa Martinez, Nieves; Jørgensen, Mikkel; Krebs, Frederik CPublication date:2014Document VersionPublisher's PDF, also known as Version of recordLink back to DTU OrbitCitation (APA):Hösel, M., Søndergaard, R. R., Espinosa Martinez, N., Jørgensen, M., & Krebs, F. C. (2014). Fully printed multisquare meter large organic solar cell modules for real energy production. Abstract from 2nd InternationalConference on Clean Energy, Qingdao, China.eliminate the detrimental Cu2+ ions, optimizing film thickness and selenization temperature, we have improved the power conversion efficiency to 8.3%.[3] Characterization of the absorber film shows a pure kesterite structure but with a non-ideal morphology consisting of small grain bottom layer and large grain top layer. Recently, by adding a small amount of additives to the precursor solution, more uniform CZTSSe absorber films with larger grains and smoother surface are obtained and a total area efficiency of 10% has been achieved without an antireflective coating. This is the most efficient CZTSSe absorber material fabricated from all methods rather than hydrazine ink. Our results demonstrate that highly efficient kesterite solar cells can be realized from simple molecular precursor solution in environmental benign solvent, making this method the most promising approach for low cost earth abundant solar cells. References: [1] W. Wang, M. T. Winkler, O. Gunawan, T. Gokmen, T. K. Todorov, Y. Zhu, D. B. Mitzi: Adv. Energy Mater. Published online: 27 NOV 2013. DOI: 10.1002/aenm.201301465. [2] W. Ki and H. W. Hillhouse: Adv. Energy Mater. Vol. 1 (2011), p. 732. [3] H. Xin and H. W. Hillhouse: 39th IEEE Photovoltaic Specialists Conference, June 16-21 (2013), Tampa, USA. Keywords: kesterite, CZTSSe, photovoltaic cells, non-toxic solvent, abundant.    113 OP-41   Fully printed multi square meter large organic solar cell modules for real energy production Markus Hösel, Roar R. Søndergaard, Nieves Espinosa, Mikkel Jørgensen, Frederik C. Krebs* 1Technical University of Denmark, Department of Energy Conversion and Storage, Frederiksborgvej 399, 4000 Roskilde, Denmark mhqs@dtu.dk The majority of lab-scale organic solar cells (OPV) are very small with < 0.5 cm2 [1] using ITO glass, spin coating, evaporation, inert atmosphere, and optimum conditions. Obviously, the cells can lead to record efficiencies – but they are far beyond real world applications often proclaimed by the authors. Transfer to large-scale devices with an appropriate power output is hardly possible.  Here, we present the route to literally infinite large organic solar cell modules with hundreds of Watts output – fully roll-to-roll (R2R) produced under vacuum-free ambient conditions.  The substrate is based on printed silver grids, PEDOT:PSS, and zinc oxide [2] and enables a fast production with up to 20 m/min and has decreased embodied energy compared to ITO-based substrates. Model cells with at least 1 cm2 are fabricated on a rollcoater, which allows easy transfer to the R2R line for larger test modules (> 50 cm2).  Furthermore, we are able to produce infinite long modules based on thousands of serially connected cells. All R2R coating and printing processes of active layer, PEDOT:PSS and silver electrodes are carried out with several m/min. The serial connection is completed throughout the print run due to an optimized pattern layout. The advantage of the so-called Infinity concept is the fabrication of high-voltage OPV modules with active areas beyond square meters (21000 cells = 14.7 m2, 100 m long) and stabilized power outputs of > 220 W (active layer P3HT:PCBM). The module has only two terminal connectors for minimized wiring during the setup of module arrays. The installation of a 100 m long module takes less than one minute. A parallel-connected array with outputs > 1.3 kW and rather low efficient material (< 2%) was built.[3]    Here, we will present the latest results of this fully functional strategy for energy production based on OPV.  References: [1] Jørgensen, M., Carlé, J. E., Søndergaard, R. R., Lauritzen, M., Dagnæs-Hansen, N. A., Byskov, S. L., et al. Solar Energy Materials and Solar Cells, Vol. 119 (2013), p. 84 [2] Hösel, M., Søndergaard, R. R., Jørgensen, M., and Krebs, F. C. Energy Technology, Vol. 1 (2013), p. 102 [3] Krebs, F. C., Espinosa, N., Hösel, M., Søndergaard, R. R., and Jørgensen, M. (2013). Advanced Materials. (2013), in press, doi:10.1002/adma.201302031  Keywords: organic solar cells, roll-to-roll processing, solar parks, energy production    OP-42 Kyungkon Kim  Conjugated Polymer/PCBM Bilayer Heterojunction Polymer Solar Cells  Jeesoo Seok, Xie Lin, Yoon Hee Jang, Kyungkon Kim  Department of Chemistry and Nano Science, Ewha Womans Univerisy, Seoul, Korea  kimkk@ewha.ac.kr   Bulk heterojunction (BHJ) type photoactive layer is widely used for the fabrication of organic solar cells. The blended solution of electron donor and acceptor is used to form BHJ layer. The performance of BHJ solar cell is influenced by proper formation of interpenetrated nanoscale morphology between donor and acceptor organic semiconductors. The nano morphology formation is sensitive to various optimization conditions such as donor/acceptor blending ratio, processing additive and solvents.  

Fully printed multi square meter large organic solar cell modules for real energy production

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Fully printed multi square meter large organic solar cell modules for real energy production

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