Abstract
Organic solar cells with stacked bulk heterojunction(BHJ) are investigated based on conjugated polymer. By using the solution spin-coating method, Poly[2-methoxy, 5-(2′-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) and ZnO nanoparticles (50 nm) are mixed as the optical sense layer. Ag is used as inter-layer to connect the upper BHJ cell and the lower cell. The structures are ITO/PEDOT:PSS/MEH-PPV /Ag / MEH-PPV:ZnO /Al. The open circuit voltage (V OC) of a stacked cell is about 3.7 times of that of an individual organic solar cell (ITO/PEDOT:PSS/MEH-PPV /Al). The short circuit current (J SC) of a stacked cell is increased by about 1.6 times of that of individual one.
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The work has been supported by the National Natural Science Foundation of China (60576016 and 10774013), National “863” Program (2006AA03Z0412) and “973” Program(2003CB314707).
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Zhang, Xf., Xu, Z., Zhao, Sl. et al. Study of organic solar cells with stacked bulk heterojunction structure. Optoelectron. Lett. 4, 257–259 (2008). https://doi.org/10.1007/s11801-008-8028-0
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DOI: https://doi.org/10.1007/s11801-008-8028-0