Results 161 to 170 of about 50,813 (186)

Solution‐Processed Organic Tandem Solar Cells

Advanced Functional Materials, 2006
AbstractA solution‐processed polymer tandem cell fabricated by stacking two single cells in series is demonstrated. The two bulk‐heterojunction subcells have complementary absorption maxima at λmax ∼ 850 nm and λmax ∼ 550 nm, respectively. A composite middle electrode is applied that serves both as a charge‐recombination center and as a protecting ...
Hadipour, Afshin, Boer, Bert de, Wildeman, Jurjen, Kooistra, Floris B., Hummelen, Jan C., Turbiez, Mathieu G.R., Wienk, Martijn M., Janssen, Rene A.J., Blom, Paul W.M.   +8 more
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Integrated tandem solar cells

Solar Energy, 1979
Abstract The performance of integrated tandem solar cell (ITSC) devices made from pn homojunctions has been investigated. The intrinsic electrical interconnection present in an ITSC device places important restrictions on the choice of the energy gaps of the semiconductors to be used. Total conversion efficiencies are calculated and they are compared
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Optically Tandem Solar Cells

Frontiers in Optics 2008/Laser Science XXIV/Plasmonics and Metamaterials/Optical Fabrication and Testing, 2008
Limiting factors for solar cells include poor conversion efficiency for short wavelength solar radiation and transparency to near infrared light. This presentation describes “optically tandem cells” that convert solar radiation to optimal wavelengths.
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Complementary Materials for Tandem Organic Solar Cells [PDF]

, 2016
Traditionally, photocurrent generation in a typical organic photovoltaic (OPV) device has been thought to occur predominantly by photoexcitation of the electron donor and subsequent electron transfer to an acceptor material with a higher electron affinity than the donor (the Channel I mechanism).
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Efficient Tandem and Triple-Junction Polymer Solar Cells

Journal of the American Chemical Society, 2013
We demonstrate tandem and triple-junction polymer solar cells with power conversion efficiencies of 8.9% and 9.6% that use a newly designed, high molecular weight, small band gap semiconducting polymer and a matching wide band gap polymer.
Li, Weiwei, Furlan, Alice, Hendriks, Koen H., Wienk, Martijn M., Janssen, René A. J.   +4 more
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A Hybrid Tandem Solar Cell Combining a Dye-Sensitized and a Polymer Solar Cell

Journal of Nanoscience and Nanotechnology, 2016
A hybrid tandem solar cell was assambled by connecting a dye sensitized solar cell and a polymer solar cell in series. A N719 sensitized TiO2 was used as photocathode in dye-sensitized subcell, and a MEH-PPV/PCBM composite was used as active layer in the polymer subcell.
Zhipeng, Shao, Shuanghong, Chen, Xuhui, Zhang, Liangzheng, Zhu, Jiajiu, Ye, Songyuan, Dai   +5 more
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Organic tandem solar cells: A review

Energy & Environmental Science, 2009
In this article some brief theoretical considerations addressing the potential of single and tandem solar cells, the main experimental achievements reported in the literature so far and finally some design rules for efficient material combinations in bulk-heterojunction organic tandem solar cells are presented.
Tayebeh Ameri, Gilles Dennler, Christoph Lungenschmied, Christoph J. Brabec   +3 more
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Calibration of metastable tandem solar cells

2022
The measurement of metastable (perovskite based) solar cells is a focus of the calibration lab of Fraunhofer ISE (CalLab PV Cells) to realize reliable measurements on emerging PV devices since several years. Rather than the certification of industrial grade stable solar cells, the aim here is to show the performance potential of new cell types in an ...
Hohl-Ebinger, Jochen, Reichmuth, Kasimir, Chojniak, David, Rauer, Michael, Schachtner, Michael, Siefer, Gerald   +5 more
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Tandem Solar Cell—Concept and Practice in Organic Solar Cells

2015
In the past decade, organic solar cell (OPV) technology has been intensively studied and improved significantly due to its attractive properties in manufacturability, flexibility, light weight etc. The power conversion efficiency (PCE) has been enhanced dramatically from ~2–3 to ~12 % through materials, interface and device architecture innovations ...
Ziruo Hong, Letian Dou, Gang Li, Yang Yang   +3 more
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Photon tunneling in tandem solar cells

2015 IEEE 42nd Photovoltaic Specialist Conference (PVSC), 2015
We investigate the influence of surface texture on the effectiveness of reflectance by intermediate reflectors in thin-film tandem solar cells. Two distinct angular reflection regimes are identified. For large-angle textures, frustrated total internal reflection or photon tunneling is the dominating mechanism.
A. Hoffmann, K. Bittkau, C. Zhang, M. Meier, R. Carius, U. Rau   +5 more
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